Knowing the current inflation rate is helpful in making short term decisions. Seeing a table of historical inflation rates is only slightly productive. For long term planning, what we're really interested in is the annualized inflation over a period of time. Sure, some years inflation may skyrocket to 20%, but other years it's flat or even negative. Taken together, they should be equivalent to one inflation rate applied each year. This annualized inflation rate (or geometric mean, or Compound Annual Growth Rate [CAGR]) is probably a good value to use when modeling inflation far into the future.
I found some great information over at InflationData.com, but I couldn't find any information on average or annualized inflation. I found a calculator at MeasuringWorth.com, but that also wasn't terribly useful except to give me a single final result. Then I found Peter Dolph on average inflation, but that was unclear whether it gave an average year-over-year inflation, which didn't make as much intuitive sense, or the geometric mean. So, I decided to compute it myself.
Since I love data, I started with the raw CPI data (see one of the tables below). I then computed the annualized inflation rate from 1913 up until each data point using the same month (or average, in the annual case) in each year. Looking at the table, things appeared to level out, so I decided to verify that with a graph! Not content with that, I then added the year-over-year inflation data for comparison purposes. Not content with that, I then computed and added a sliding 20-year window of annualized inflation rates.
The graph above (click for full size) shows the year-over-year inflation rate, a sliding 20-year annualized inflation rate, and an overall annualized inflation rate. Below, you can toggle between the raw CPI data and the overall annualized inflation rate table. The month of July was used for the graph for the simple reason that it was the most recent month data was available for this year. Also, the average 20-year annualized inflation rate was 3.236% compared to the overall annualized rate of 3.239% at the end of July, 2010, and compared to the 3.26% Peter Dolph found to be the average. Things seem to be pretty consistent.
"What about the risk of hyperinflation?" you may ask. Hyperinflation would indeed be bad, but I don't think it's particularly useful to worry about. If hyperinflation hits us, the world economy is likely completely broken and no amount of planning will help. You could argue that real goods like precious metals would hold their value, but I think owners of gold, for example, will have a hard time taking possession of that gold. Just a theory.
So, 3.3% is a pretty reasonable assumption for long term inflation, arrived at using various methods. This should give us some confidence when we create long term models and/or plans!
CPI Data Table Display Annualized Inflation Table| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2010 | 216.687 | 216.741 | 217.631 | 218.009 | 218.178 | 217.965 | 218.011 | --- | --- | --- | --- | --- | --- |
| 2009 | 211.143 | 212.193 | 212.709 | 213.240 | 213.856 | 215.693 | 215.351 | 215.834 | 215.969 | 216.177 | 216.330 | 215.949 | 214.537 |
| 2008 | 211.080 | 211.693 | 213.528 | 214.823 | 216.632 | 218.815 | 219.964 | 219.086 | 218.783 | 216.573 | 212.425 | 210.228 | 215.303 |
| 2007 | 202.416 | 203.499 | 205.352 | 206.686 | 207.949 | 208.352 | 208.299 | 207.917 | 208.490 | 208.936 | 210.177 | 210.036 | 207.342 |
| 2006 | 198.300 | 198.700 | 199.800 | 201.500 | 202.500 | 202.900 | 203.500 | 203.900 | 202.900 | 201.800 | 201.500 | 201.800 | 201.600 |
| 2005 | 190.700 | 191.800 | 193.300 | 194.600 | 194.400 | 194.500 | 195.400 | 196.400 | 198.800 | 199.200 | 197.600 | 196.800 | 195.300 |
| 2004 | 185.200 | 186.200 | 187.400 | 188.000 | 189.100 | 189.700 | 189.400 | 189.500 | 189.900 | 190.900 | 191.000 | 190.300 | 188.900 |
| 2003 | 181.700 | 183.100 | 184.200 | 183.800 | 183.500 | 183.700 | 183.900 | 184.600 | 185.200 | 185.000 | 184.500 | 184.300 | 183.960 |
| 2002 | 177.100 | 177.800 | 178.800 | 179.800 | 179.800 | 179.900 | 180.100 | 180.700 | 181.000 | 181.300 | 181.300 | 180.900 | 179.880 |
| 2001 | 175.100 | 175.800 | 176.200 | 176.900 | 177.700 | 178.000 | 177.500 | 177.500 | 178.300 | 177.700 | 177.400 | 176.700 | 177.100 |
| 2000 | 168.800 | 169.800 | 171.200 | 171.300 | 171.500 | 172.400 | 172.800 | 172.800 | 173.700 | 174.000 | 174.100 | 174.000 | 172.200 |
| 1999 | 164.300 | 164.500 | 165.000 | 166.200 | 166.200 | 166.200 | 166.700 | 167.100 | 167.900 | 168.200 | 168.300 | 168.300 | 166.600 |
| 1998 | 161.600 | 161.900 | 162.200 | 162.500 | 162.800 | 163.000 | 163.200 | 163.400 | 163.600 | 164.000 | 164.000 | 163.900 | 163.000 |
| 1997 | 159.100 | 159.600 | 160.000 | 160.200 | 160.100 | 160.300 | 160.500 | 160.800 | 161.200 | 161.600 | 161.500 | 161.300 | 160.500 |
| 1996 | 154.400 | 154.900 | 155.700 | 156.300 | 156.600 | 156.700 | 157.000 | 157.300 | 157.800 | 158.300 | 158.600 | 158.600 | 156.900 |
| 1995 | 150.300 | 150.900 | 151.400 | 151.900 | 152.200 | 152.500 | 152.500 | 152.900 | 153.200 | 153.700 | 153.600 | 153.500 | 152.400 |
| 1994 | 146.200 | 146.700 | 147.200 | 147.400 | 147.500 | 148.000 | 148.400 | 149.000 | 149.400 | 149.500 | 149.700 | 149.700 | 148.200 |
| 1993 | 142.600 | 143.100 | 143.600 | 144.000 | 144.200 | 144.400 | 144.400 | 144.800 | 145.100 | 145.700 | 145.800 | 145.800 | 144.500 |
| 1992 | 138.100 | 138.600 | 139.300 | 139.500 | 139.700 | 140.200 | 140.500 | 140.900 | 141.300 | 141.800 | 142.000 | 141.900 | 140.300 |
| 1991 | 134.600 | 134.800 | 135.000 | 135.200 | 135.600 | 136.000 | 136.200 | 136.600 | 137.200 | 137.400 | 137.800 | 137.900 | 136.200 |
| 1990 | 127.400 | 128.000 | 128.700 | 128.900 | 129.200 | 129.900 | 130.400 | 131.600 | 132.700 | 133.500 | 133.800 | 133.800 | 130.700 |
| 1989 | 121.100 | 121.600 | 122.300 | 123.100 | 123.800 | 124.100 | 124.400 | 124.600 | 125.000 | 125.600 | 125.900 | 126.100 | 124.000 |
| 1988 | 115.700 | 116.000 | 116.500 | 117.100 | 117.500 | 118.000 | 118.500 | 119.000 | 119.800 | 120.200 | 120.300 | 120.500 | 118.300 |
| 1987 | 111.200 | 111.600 | 112.100 | 112.700 | 113.100 | 113.500 | 113.800 | 114.400 | 115.000 | 115.300 | 115.400 | 115.400 | 113.600 |
| 1986 | 109.600 | 109.300 | 108.800 | 108.600 | 108.900 | 109.500 | 109.500 | 109.700 | 110.200 | 110.300 | 110.400 | 110.500 | 109.600 |
| 1985 | 105.500 | 106.000 | 106.400 | 106.900 | 107.300 | 107.600 | 107.800 | 108.000 | 108.300 | 108.700 | 109.000 | 109.300 | 107.600 |
| 1984 | 101.900 | 102.400 | 102.600 | 103.100 | 103.400 | 103.700 | 104.100 | 104.500 | 105.000 | 105.300 | 105.300 | 105.300 | 103.900 |
| 1983 | 97.800 | 97.900 | 97.900 | 98.600 | 99.200 | 99.500 | 99.900 | 100.200 | 100.700 | 101.000 | 101.200 | 101.300 | 99.600 |
| 1982 | 94.300 | 94.600 | 94.500 | 94.900 | 95.800 | 97.000 | 97.500 | 97.700 | 97.900 | 98.200 | 98.000 | 97.600 | 96.500 |
| 1981 | 87.000 | 87.900 | 88.500 | 89.100 | 89.800 | 90.600 | 91.600 | 92.300 | 93.200 | 93.400 | 93.700 | 94.000 | 90.900 |
| 1980 | 77.800 | 78.900 | 80.100 | 81.000 | 81.800 | 82.700 | 82.700 | 83.300 | 84.000 | 84.800 | 85.500 | 86.300 | 82.400 |
| 1979 | 68.300 | 69.100 | 69.800 | 70.600 | 71.500 | 72.300 | 73.100 | 73.800 | 74.600 | 75.200 | 75.900 | 76.700 | 72.600 |
| 1978 | 62.500 | 62.900 | 63.400 | 63.900 | 64.500 | 65.200 | 65.700 | 66.000 | 66.500 | 67.100 | 67.400 | 67.700 | 65.200 |
| 1977 | 58.500 | 59.100 | 59.500 | 60.000 | 60.300 | 60.700 | 61.000 | 61.200 | 61.400 | 61.600 | 61.900 | 62.100 | 60.600 |
| 1976 | 55.600 | 55.800 | 55.900 | 56.100 | 56.500 | 56.800 | 57.100 | 57.400 | 57.600 | 57.900 | 58.000 | 58.200 | 56.900 |
| 1975 | 52.100 | 52.500 | 52.700 | 52.900 | 53.200 | 53.600 | 54.200 | 54.300 | 54.600 | 54.900 | 55.300 | 55.500 | 53.800 |
| 1974 | 46.600 | 47.200 | 47.800 | 48.000 | 48.600 | 49.000 | 49.400 | 50.000 | 50.600 | 51.100 | 51.500 | 51.900 | 49.300 |
| 1973 | 42.600 | 42.900 | 43.300 | 43.600 | 43.900 | 44.200 | 44.300 | 45.100 | 45.200 | 45.600 | 45.900 | 46.200 | 44.400 |
| 1972 | 41.100 | 41.300 | 41.400 | 41.500 | 41.600 | 41.700 | 41.900 | 42.000 | 42.100 | 42.300 | 42.400 | 42.500 | 41.800 |
| 1971 | 39.800 | 39.900 | 40.000 | 40.100 | 40.300 | 40.600 | 40.700 | 40.800 | 40.800 | 40.900 | 40.900 | 41.100 | 40.500 |
| 1970 | 37.800 | 38.000 | 38.200 | 38.500 | 38.600 | 38.800 | 39.000 | 39.000 | 39.200 | 39.400 | 39.600 | 39.800 | 38.800 |
| 1969 | 35.600 | 35.800 | 36.100 | 36.300 | 36.400 | 36.600 | 36.800 | 37.000 | 37.100 | 37.300 | 37.500 | 37.700 | 36.700 |
| 1968 | 34.100 | 34.200 | 34.300 | 34.400 | 34.500 | 34.700 | 34.900 | 35.000 | 35.100 | 35.300 | 35.400 | 35.500 | 34.800 |
| 1967 | 32.900 | 32.900 | 33.000 | 33.100 | 33.200 | 33.300 | 33.400 | 33.500 | 33.600 | 33.700 | 33.800 | 33.900 | 33.400 |
| 1966 | 31.800 | 32.000 | 32.100 | 32.300 | 32.300 | 32.400 | 32.500 | 32.700 | 32.700 | 32.900 | 32.900 | 32.900 | 32.400 |
| 1965 | 31.200 | 31.200 | 31.300 | 31.400 | 31.400 | 31.600 | 31.600 | 31.600 | 31.600 | 31.700 | 31.700 | 31.800 | 31.500 |
| 1964 | 30.900 | 30.900 | 30.900 | 30.900 | 30.900 | 31.000 | 31.100 | 31.000 | 31.100 | 31.100 | 31.200 | 31.200 | 31.000 |
| 1963 | 30.400 | 30.400 | 30.500 | 30.500 | 30.500 | 30.600 | 30.700 | 30.700 | 30.700 | 30.800 | 30.800 | 30.900 | 30.600 |
| 1962 | 30.000 | 30.100 | 30.100 | 30.200 | 30.200 | 30.200 | 30.300 | 30.300 | 30.400 | 30.400 | 30.400 | 30.400 | 30.200 |
| 1961 | 29.800 | 29.800 | 29.800 | 29.800 | 29.800 | 29.800 | 30.000 | 29.900 | 30.000 | 30.000 | 30.000 | 30.000 | 29.900 |
| 1960 | 29.300 | 29.400 | 29.400 | 29.500 | 29.500 | 29.600 | 29.600 | 29.600 | 29.600 | 29.800 | 29.800 | 29.800 | 29.600 |
| 1959 | 29.000 | 28.900 | 28.900 | 29.000 | 29.000 | 29.100 | 29.200 | 29.200 | 29.300 | 29.400 | 29.400 | 29.400 | 29.100 |
| 1958 | 28.600 | 28.600 | 28.800 | 28.900 | 28.900 | 28.900 | 29.000 | 28.900 | 28.900 | 28.900 | 29.000 | 28.900 | 28.900 |
| 1957 | 27.600 | 27.700 | 27.800 | 27.900 | 28.000 | 28.100 | 28.300 | 28.300 | 28.300 | 28.300 | 28.400 | 28.400 | 28.100 |
| 1956 | 26.800 | 26.800 | 26.800 | 26.900 | 27.000 | 27.200 | 27.400 | 27.300 | 27.400 | 27.500 | 27.500 | 27.600 | 27.200 |
| 1955 | 26.700 | 26.700 | 26.700 | 26.700 | 26.700 | 26.700 | 26.800 | 26.800 | 26.900 | 26.900 | 26.900 | 26.800 | 26.800 |
| 1954 | 26.900 | 26.900 | 26.900 | 26.800 | 26.900 | 26.900 | 26.900 | 26.900 | 26.800 | 26.800 | 26.800 | 26.700 | 26.900 |
| 1953 | 26.600 | 26.500 | 26.600 | 26.600 | 26.700 | 26.800 | 26.800 | 26.900 | 26.900 | 27.000 | 26.900 | 26.900 | 26.700 |
| 1952 | 26.500 | 26.300 | 26.300 | 26.400 | 26.400 | 26.500 | 26.700 | 26.700 | 26.700 | 26.700 | 26.700 | 26.700 | 26.500 |
| 1951 | 25.400 | 25.700 | 25.800 | 25.800 | 25.900 | 25.900 | 25.900 | 25.900 | 26.100 | 26.200 | 26.400 | 26.500 | 26.000 |
| 1950 | 23.500 | 23.500 | 23.600 | 23.600 | 23.700 | 23.800 | 24.100 | 24.300 | 24.400 | 24.600 | 24.700 | 25.000 | 24.100 |
| 1949 | 24.000 | 23.800 | 23.800 | 23.900 | 23.800 | 23.900 | 23.700 | 23.800 | 23.900 | 23.700 | 23.800 | 23.600 | 23.800 |
| 1948 | 23.700 | 23.500 | 23.400 | 23.800 | 23.900 | 24.100 | 24.400 | 24.500 | 24.500 | 24.400 | 24.200 | 24.100 | 24.100 |
| 1947 | 21.500 | 21.500 | 21.900 | 21.900 | 21.900 | 22.000 | 22.200 | 22.500 | 23.000 | 23.000 | 23.100 | 23.400 | 22.300 |
| 1946 | 18.200 | 18.100 | 18.300 | 18.400 | 18.500 | 18.700 | 19.800 | 20.200 | 20.400 | 20.800 | 21.300 | 21.500 | 19.500 |
| 1945 | 17.800 | 17.800 | 17.800 | 17.800 | 17.900 | 18.100 | 18.100 | 18.100 | 18.100 | 18.100 | 18.100 | 18.200 | 18.000 |
| 1944 | 17.400 | 17.400 | 17.400 | 17.500 | 17.500 | 17.600 | 17.700 | 17.700 | 17.700 | 17.700 | 17.700 | 17.800 | 17.600 |
| 1943 | 16.900 | 16.900 | 17.200 | 17.400 | 17.500 | 17.500 | 17.400 | 17.300 | 17.400 | 17.400 | 17.400 | 17.400 | 17.300 |
| 1942 | 15.700 | 15.800 | 16.000 | 16.100 | 16.300 | 16.300 | 16.400 | 16.500 | 16.500 | 16.700 | 16.800 | 16.900 | 16.300 |
| 1941 | 14.100 | 14.100 | 14.200 | 14.300 | 14.400 | 14.700 | 14.700 | 14.900 | 15.100 | 15.300 | 15.400 | 15.500 | 14.700 |
| 1940 | 13.900 | 14.000 | 14.000 | 14.000 | 14.000 | 14.100 | 14.000 | 14.000 | 14.000 | 14.000 | 14.000 | 14.100 | 14.000 |
| 1939 | 14.000 | 13.900 | 13.900 | 13.800 | 13.800 | 13.800 | 13.800 | 13.800 | 14.100 | 14.000 | 14.000 | 14.000 | 13.900 |
| 1938 | 14.200 | 14.100 | 14.100 | 14.200 | 14.100 | 14.100 | 14.100 | 14.100 | 14.100 | 14.000 | 14.000 | 14.000 | 14.100 |
| 1937 | 14.100 | 14.100 | 14.200 | 14.300 | 14.400 | 14.400 | 14.500 | 14.500 | 14.600 | 14.600 | 14.500 | 14.400 | 14.400 |
| 1936 | 13.800 | 13.800 | 13.700 | 13.700 | 13.700 | 13.800 | 13.900 | 14.000 | 14.000 | 14.000 | 14.000 | 14.000 | 13.900 |
| 1935 | 13.600 | 13.700 | 13.700 | 13.800 | 13.800 | 13.700 | 13.700 | 13.700 | 13.700 | 13.700 | 13.800 | 13.800 | 13.700 |
| 1934 | 13.200 | 13.300 | 13.300 | 13.300 | 13.300 | 13.400 | 13.400 | 13.400 | 13.600 | 13.500 | 13.500 | 13.400 | 13.400 |
| 1933 | 12.900 | 12.700 | 12.600 | 12.600 | 12.600 | 12.700 | 13.100 | 13.200 | 13.200 | 13.200 | 13.200 | 13.200 | 13.000 |
| 1932 | 14.300 | 14.100 | 14.000 | 13.900 | 13.700 | 13.600 | 13.600 | 13.500 | 13.400 | 13.300 | 13.200 | 13.100 | 13.700 |
| 1931 | 15.900 | 15.700 | 15.600 | 15.500 | 15.300 | 15.100 | 15.100 | 15.100 | 15.000 | 14.900 | 14.700 | 14.600 | 15.200 |
| 1930 | 17.100 | 17.000 | 16.900 | 17.000 | 16.900 | 16.800 | 16.600 | 16.500 | 16.600 | 16.500 | 16.400 | 16.100 | 16.700 |
| 1929 | 17.100 | 17.100 | 17.000 | 16.900 | 17.000 | 17.100 | 17.300 | 17.300 | 17.300 | 17.300 | 17.300 | 17.200 | 17.100 |
| 1928 | 17.300 | 17.100 | 17.100 | 17.100 | 17.200 | 17.100 | 17.100 | 17.100 | 17.300 | 17.200 | 17.200 | 17.100 | 17.100 |
| 1927 | 17.500 | 17.400 | 17.300 | 17.300 | 17.400 | 17.600 | 17.300 | 17.200 | 17.300 | 17.400 | 17.300 | 17.300 | 17.400 |
| 1926 | 17.900 | 17.900 | 17.800 | 17.900 | 17.800 | 17.700 | 17.500 | 17.400 | 17.500 | 17.600 | 17.700 | 17.700 | 17.700 |
| 1925 | 17.300 | 17.200 | 17.300 | 17.200 | 17.300 | 17.500 | 17.700 | 17.700 | 17.700 | 17.700 | 18.000 | 17.900 | 17.500 |
| 1924 | 17.300 | 17.200 | 17.100 | 17.000 | 17.000 | 17.000 | 17.100 | 17.000 | 17.100 | 17.200 | 17.200 | 17.300 | 17.100 |
| 1923 | 16.800 | 16.800 | 16.800 | 16.900 | 16.900 | 17.000 | 17.200 | 17.100 | 17.200 | 17.300 | 17.300 | 17.300 | 17.100 |
| 1922 | 16.900 | 16.900 | 16.700 | 16.700 | 16.700 | 16.700 | 16.800 | 16.600 | 16.600 | 16.700 | 16.800 | 16.900 | 16.800 |
| 1921 | 19.000 | 18.400 | 18.300 | 18.100 | 17.700 | 17.600 | 17.700 | 17.700 | 17.500 | 17.500 | 17.400 | 17.300 | 17.900 |
| 1920 | 19.300 | 19.500 | 19.700 | 20.300 | 20.600 | 20.900 | 20.800 | 20.300 | 20.000 | 19.900 | 19.800 | 19.400 | 20.000 |
| 1919 | 16.500 | 16.200 | 16.400 | 16.700 | 16.900 | 16.900 | 17.400 | 17.700 | 17.800 | 18.100 | 18.500 | 18.900 | 17.300 |
| 1918 | 14.000 | 14.100 | 14.000 | 14.200 | 14.500 | 14.700 | 15.100 | 15.400 | 15.700 | 16.000 | 16.300 | 16.500 | 15.100 |
| 1917 | 11.700 | 12.000 | 12.000 | 12.600 | 12.800 | 13.000 | 12.800 | 13.000 | 13.300 | 13.500 | 13.500 | 13.700 | 12.800 |
| 1916 | 10.400 | 10.400 | 10.500 | 10.600 | 10.700 | 10.800 | 10.800 | 10.900 | 11.100 | 11.300 | 11.500 | 11.600 | 10.900 |
| 1915 | 10.100 | 10.000 | 9.900 | 10.000 | 10.100 | 10.100 | 10.100 | 10.100 | 10.100 | 10.200 | 10.300 | 10.300 | 10.100 |
| 1914 | 10.000 | 9.900 | 9.900 | 9.800 | 9.900 | 9.900 | 10.000 | 10.200 | 10.200 | 10.100 | 10.200 | 10.100 | 10.000 |
| 1913 | 9.800 | 9.800 | 9.800 | 9.800 | 9.700 | 9.800 | 9.900 | 9.900 | 10.000 | 10.000 | 10.100 | 10.000 | 9.900 |
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2010 | 3.243 | 3.244 | 3.248 | 3.250 | 3.262 | 3.250 | 3.239 | --- | --- | --- | --- | --- | --- |
| 2009 | 3.250 | 3.255 | 3.258 | 3.260 | 3.275 | 3.273 | 3.260 | 3.262 | 3.252 | 3.253 | 3.243 | 3.252 | 3.256 |
| 2008 | 3.284 | 3.287 | 3.297 | 3.303 | 3.324 | 3.323 | 3.318 | 3.314 | 3.301 | 3.290 | 3.258 | 3.258 | 3.295 |
| 2007 | 3.274 | 3.280 | 3.289 | 3.297 | 3.315 | 3.305 | 3.294 | 3.292 | 3.284 | 3.286 | 3.282 | 3.292 | 3.289 |
| 2006 | 3.287 | 3.289 | 3.295 | 3.304 | 3.321 | 3.312 | 3.304 | 3.306 | 3.290 | 3.284 | 3.271 | 3.284 | 3.294 |
| 2005 | 3.279 | 3.286 | 3.294 | 3.302 | 3.312 | 3.301 | 3.295 | 3.301 | 3.303 | 3.305 | 3.285 | 3.292 | 3.294 |
| 2004 | 3.282 | 3.289 | 3.296 | 3.299 | 3.318 | 3.310 | 3.296 | 3.297 | 3.288 | 3.294 | 3.283 | 3.290 | 3.293 |
| 2003 | 3.298 | 3.306 | 3.313 | 3.311 | 3.321 | 3.310 | 3.300 | 3.304 | 3.296 | 3.295 | 3.281 | 3.291 | 3.300 |
| 2002 | 3.306 | 3.310 | 3.317 | 3.323 | 3.335 | 3.324 | 3.313 | 3.317 | 3.307 | 3.309 | 3.298 | 3.307 | 3.312 |
| 2001 | 3.330 | 3.335 | 3.338 | 3.342 | 3.360 | 3.350 | 3.334 | 3.334 | 3.328 | 3.324 | 3.310 | 3.317 | 3.332 |
| 2000 | 3.326 | 3.333 | 3.343 | 3.343 | 3.357 | 3.351 | 3.342 | 3.342 | 3.336 | 3.338 | 3.327 | 3.338 | 3.337 |
| 1999 | 3.333 | 3.334 | 3.338 | 3.346 | 3.359 | 3.346 | 3.338 | 3.341 | 3.334 | 3.337 | 3.325 | 3.337 | 3.337 |
| 1998 | 3.352 | 3.355 | 3.357 | 3.359 | 3.374 | 3.363 | 3.352 | 3.353 | 3.343 | 3.346 | 3.334 | 3.345 | 3.350 |
| 1997 | 3.374 | 3.378 | 3.381 | 3.382 | 3.394 | 3.383 | 3.372 | 3.374 | 3.365 | 3.368 | 3.355 | 3.366 | 3.372 |
| 1996 | 3.378 | 3.382 | 3.388 | 3.393 | 3.408 | 3.396 | 3.386 | 3.388 | 3.380 | 3.384 | 3.374 | 3.386 | 3.385 |
| 1995 | 3.386 | 3.391 | 3.395 | 3.399 | 3.414 | 3.404 | 3.391 | 3.394 | 3.384 | 3.388 | 3.375 | 3.387 | 3.390 |
| 1994 | 3.393 | 3.397 | 3.402 | 3.403 | 3.417 | 3.408 | 3.399 | 3.404 | 3.395 | 3.396 | 3.385 | 3.397 | 3.397 |
| 1993 | 3.404 | 3.408 | 3.413 | 3.416 | 3.431 | 3.420 | 3.407 | 3.410 | 3.400 | 3.405 | 3.393 | 3.406 | 3.408 |
| 1992 | 3.406 | 3.410 | 3.417 | 3.419 | 3.434 | 3.425 | 3.415 | 3.419 | 3.409 | 3.414 | 3.403 | 3.415 | 3.413 |
| 1991 | 3.416 | 3.418 | 3.420 | 3.422 | 3.439 | 3.430 | 3.418 | 3.422 | 3.415 | 3.416 | 3.407 | 3.421 | 3.418 |
| 1990 | 3.387 | 3.394 | 3.401 | 3.403 | 3.420 | 3.413 | 3.405 | 3.417 | 3.415 | 3.423 | 3.413 | 3.426 | 3.408 |
| 1989 | 3.364 | 3.369 | 3.377 | 3.386 | 3.407 | 3.397 | 3.386 | 3.388 | 3.379 | 3.386 | 3.375 | 3.391 | 3.382 |
| 1988 | 3.346 | 3.350 | 3.356 | 3.363 | 3.382 | 3.373 | 3.365 | 3.371 | 3.366 | 3.371 | 3.358 | 3.374 | 3.363 |
| 1987 | 3.337 | 3.342 | 3.348 | 3.356 | 3.375 | 3.365 | 3.355 | 3.362 | 3.356 | 3.359 | 3.346 | 3.360 | 3.352 |
| 1986 | 3.363 | 3.359 | 3.352 | 3.350 | 3.368 | 3.361 | 3.347 | 3.350 | 3.342 | 3.343 | 3.330 | 3.346 | 3.348 |
| 1985 | 3.356 | 3.362 | 3.368 | 3.374 | 3.395 | 3.384 | 3.372 | 3.375 | 3.364 | 3.369 | 3.359 | 3.377 | 3.369 |
| 1984 | 3.353 | 3.360 | 3.363 | 3.370 | 3.389 | 3.379 | 3.369 | 3.375 | 3.367 | 3.371 | 3.357 | 3.371 | 3.367 |
| 1983 | 3.341 | 3.343 | 3.343 | 3.353 | 3.377 | 3.367 | 3.357 | 3.362 | 3.354 | 3.359 | 3.347 | 3.363 | 3.353 |
| 1982 | 3.336 | 3.340 | 3.339 | 3.345 | 3.375 | 3.378 | 3.371 | 3.374 | 3.362 | 3.366 | 3.348 | 3.357 | 3.355 |
| 1981 | 3.263 | 3.279 | 3.289 | 3.299 | 3.327 | 3.325 | 3.326 | 3.338 | 3.337 | 3.340 | 3.330 | 3.350 | 3.314 |
| 1980 | 3.140 | 3.162 | 3.185 | 3.203 | 3.233 | 3.235 | 3.219 | 3.230 | 3.227 | 3.242 | 3.239 | 3.269 | 3.213 |
| 1979 | 2.985 | 3.004 | 3.019 | 3.037 | 3.073 | 3.074 | 3.076 | 3.090 | 3.092 | 3.104 | 3.103 | 3.135 | 3.065 |
| 1978 | 2.891 | 2.902 | 2.914 | 2.927 | 2.958 | 2.958 | 2.954 | 2.962 | 2.958 | 2.972 | 2.963 | 2.986 | 2.942 |
| 1977 | 2.831 | 2.847 | 2.858 | 2.872 | 2.896 | 2.890 | 2.882 | 2.887 | 2.876 | 2.881 | 2.873 | 2.894 | 2.871 |
| 1976 | 2.794 | 2.799 | 2.802 | 2.808 | 2.836 | 2.828 | 2.820 | 2.829 | 2.818 | 2.827 | 2.813 | 2.835 | 2.815 |
| 1975 | 2.731 | 2.744 | 2.750 | 2.757 | 2.783 | 2.778 | 2.780 | 2.783 | 2.776 | 2.785 | 2.780 | 2.803 | 2.768 |
| 1974 | 2.589 | 2.611 | 2.632 | 2.639 | 2.677 | 2.674 | 2.670 | 2.690 | 2.694 | 2.710 | 2.707 | 2.736 | 2.667 |
| 1973 | 2.479 | 2.491 | 2.507 | 2.519 | 2.548 | 2.542 | 2.529 | 2.559 | 2.546 | 2.561 | 2.555 | 2.583 | 2.533 |
| 1972 | 2.460 | 2.468 | 2.472 | 2.476 | 2.498 | 2.485 | 2.475 | 2.480 | 2.466 | 2.475 | 2.461 | 2.483 | 2.471 |
| 1971 | 2.446 | 2.450 | 2.455 | 2.459 | 2.486 | 2.481 | 2.467 | 2.472 | 2.454 | 2.458 | 2.441 | 2.467 | 2.459 |
| 1970 | 2.397 | 2.406 | 2.415 | 2.430 | 2.453 | 2.443 | 2.434 | 2.434 | 2.426 | 2.435 | 2.426 | 2.453 | 2.425 |
| 1969 | 2.330 | 2.340 | 2.356 | 2.366 | 2.390 | 2.381 | 2.372 | 2.382 | 2.369 | 2.379 | 2.370 | 2.398 | 2.367 |
| 1968 | 2.293 | 2.298 | 2.304 | 2.309 | 2.334 | 2.325 | 2.317 | 2.323 | 2.309 | 2.320 | 2.307 | 2.330 | 2.312 |
| 1967 | 2.268 | 2.268 | 2.274 | 2.280 | 2.305 | 2.291 | 2.277 | 2.283 | 2.270 | 2.275 | 2.262 | 2.287 | 2.277 |
| 1966 | 2.246 | 2.258 | 2.264 | 2.276 | 2.296 | 2.282 | 2.268 | 2.280 | 2.261 | 2.272 | 2.253 | 2.272 | 2.262 |
| 1965 | 2.252 | 2.252 | 2.258 | 2.265 | 2.285 | 2.277 | 2.257 | 2.257 | 2.237 | 2.244 | 2.224 | 2.250 | 2.251 |
| 1964 | 2.277 | 2.277 | 2.277 | 2.277 | 2.298 | 2.284 | 2.270 | 2.263 | 2.250 | 2.250 | 2.236 | 2.256 | 2.263 |
| 1963 | 2.290 | 2.290 | 2.297 | 2.297 | 2.318 | 2.303 | 2.289 | 2.289 | 2.269 | 2.275 | 2.255 | 2.282 | 2.283 |
| 1962 | 2.310 | 2.317 | 2.317 | 2.323 | 2.345 | 2.323 | 2.309 | 2.309 | 2.295 | 2.295 | 2.274 | 2.295 | 2.302 |
| 1961 | 2.344 | 2.344 | 2.344 | 2.344 | 2.366 | 2.344 | 2.337 | 2.329 | 2.315 | 2.315 | 2.294 | 2.315 | 2.329 |
| 1960 | 2.358 | 2.365 | 2.365 | 2.372 | 2.395 | 2.380 | 2.358 | 2.358 | 2.336 | 2.350 | 2.329 | 2.350 | 2.358 |
| 1959 | 2.387 | 2.379 | 2.379 | 2.387 | 2.409 | 2.394 | 2.379 | 2.379 | 2.364 | 2.372 | 2.350 | 2.372 | 2.372 |
| 1958 | 2.409 | 2.409 | 2.424 | 2.432 | 2.456 | 2.432 | 2.417 | 2.409 | 2.386 | 2.386 | 2.372 | 2.386 | 2.409 |
| 1957 | 2.381 | 2.390 | 2.398 | 2.406 | 2.439 | 2.423 | 2.416 | 2.416 | 2.392 | 2.392 | 2.377 | 2.401 | 2.399 |
| 1956 | 2.367 | 2.367 | 2.367 | 2.376 | 2.409 | 2.402 | 2.396 | 2.387 | 2.372 | 2.380 | 2.357 | 2.389 | 2.378 |
| 1955 | 2.415 | 2.415 | 2.415 | 2.415 | 2.440 | 2.415 | 2.399 | 2.399 | 2.384 | 2.384 | 2.360 | 2.375 | 2.399 |
| 1954 | 2.493 | 2.493 | 2.493 | 2.484 | 2.519 | 2.493 | 2.468 | 2.468 | 2.434 | 2.434 | 2.409 | 2.424 | 2.468 |
| 1953 | 2.528 | 2.518 | 2.528 | 2.528 | 2.564 | 2.547 | 2.521 | 2.530 | 2.505 | 2.514 | 2.479 | 2.505 | 2.511 |
| 1952 | 2.583 | 2.564 | 2.564 | 2.574 | 2.601 | 2.583 | 2.577 | 2.577 | 2.550 | 2.550 | 2.524 | 2.550 | 2.557 |
| 1951 | 2.538 | 2.570 | 2.580 | 2.580 | 2.618 | 2.591 | 2.563 | 2.563 | 2.557 | 2.567 | 2.561 | 2.598 | 2.574 |
| 1950 | 2.392 | 2.392 | 2.404 | 2.404 | 2.444 | 2.427 | 2.434 | 2.457 | 2.440 | 2.463 | 2.446 | 2.507 | 2.434 |
| 1949 | 2.519 | 2.495 | 2.495 | 2.507 | 2.525 | 2.507 | 2.454 | 2.466 | 2.450 | 2.426 | 2.410 | 2.414 | 2.466 |
| 1948 | 2.555 | 2.530 | 2.518 | 2.568 | 2.610 | 2.604 | 2.611 | 2.623 | 2.593 | 2.581 | 2.528 | 2.545 | 2.575 |
| 1947 | 2.338 | 2.338 | 2.393 | 2.393 | 2.424 | 2.407 | 2.404 | 2.444 | 2.480 | 2.480 | 2.463 | 2.532 | 2.417 |
| 1946 | 1.894 | 1.877 | 1.911 | 1.927 | 1.976 | 1.977 | 2.123 | 2.185 | 2.184 | 2.244 | 2.287 | 2.347 | 2.075 |
| 1945 | 1.883 | 1.883 | 1.883 | 1.883 | 1.933 | 1.936 | 1.903 | 1.903 | 1.871 | 1.871 | 1.840 | 1.889 | 1.886 |
| 1944 | 1.869 | 1.869 | 1.869 | 1.888 | 1.922 | 1.907 | 1.892 | 1.892 | 1.859 | 1.859 | 1.826 | 1.877 | 1.873 |
| 1943 | 1.833 | 1.833 | 1.893 | 1.932 | 1.986 | 1.952 | 1.898 | 1.878 | 1.863 | 1.863 | 1.830 | 1.863 | 1.878 |
| 1942 | 1.638 | 1.661 | 1.705 | 1.727 | 1.806 | 1.770 | 1.756 | 1.777 | 1.742 | 1.784 | 1.770 | 1.826 | 1.734 |
| 1941 | 1.308 | 1.308 | 1.333 | 1.359 | 1.421 | 1.459 | 1.422 | 1.471 | 1.483 | 1.530 | 1.518 | 1.578 | 1.422 |
| 1940 | 1.303 | 1.330 | 1.330 | 1.330 | 1.368 | 1.356 | 1.292 | 1.292 | 1.254 | 1.254 | 1.217 | 1.281 | 1.292 |
| 1939 | 1.381 | 1.353 | 1.353 | 1.325 | 1.365 | 1.325 | 1.286 | 1.286 | 1.330 | 1.303 | 1.264 | 1.303 | 1.314 |
| 1938 | 1.494 | 1.466 | 1.466 | 1.494 | 1.507 | 1.466 | 1.425 | 1.425 | 1.384 | 1.355 | 1.315 | 1.355 | 1.425 |
| 1937 | 1.527 | 1.527 | 1.557 | 1.587 | 1.660 | 1.616 | 1.603 | 1.603 | 1.589 | 1.589 | 1.518 | 1.531 | 1.573 |
| 1936 | 1.499 | 1.499 | 1.467 | 1.467 | 1.512 | 1.499 | 1.486 | 1.518 | 1.474 | 1.474 | 1.430 | 1.474 | 1.486 |
| 1935 | 1.501 | 1.534 | 1.534 | 1.568 | 1.615 | 1.534 | 1.488 | 1.488 | 1.441 | 1.441 | 1.429 | 1.475 | 1.488 |
| 1934 | 1.428 | 1.465 | 1.465 | 1.465 | 1.514 | 1.501 | 1.452 | 1.452 | 1.475 | 1.439 | 1.391 | 1.403 | 1.452 |
| 1933 | 1.384 | 1.305 | 1.265 | 1.265 | 1.316 | 1.305 | 1.410 | 1.449 | 1.398 | 1.398 | 1.347 | 1.398 | 1.371 |
| 1932 | 2.009 | 1.933 | 1.895 | 1.857 | 1.834 | 1.740 | 1.685 | 1.646 | 1.552 | 1.512 | 1.419 | 1.431 | 1.724 |
| 1931 | 2.725 | 2.653 | 2.616 | 2.580 | 2.564 | 2.431 | 2.373 | 2.373 | 2.278 | 2.240 | 2.107 | 2.125 | 2.411 |
| 1930 | 3.329 | 3.293 | 3.257 | 3.293 | 3.320 | 3.221 | 3.087 | 3.050 | 3.026 | 2.990 | 2.892 | 2.841 | 3.124 |
| 1929 | 3.541 | 3.541 | 3.503 | 3.464 | 3.569 | 3.541 | 3.550 | 3.550 | 3.485 | 3.485 | 3.421 | 3.448 | 3.475 |
| 1928 | 3.862 | 3.781 | 3.781 | 3.781 | 3.892 | 3.781 | 3.711 | 3.711 | 3.722 | 3.682 | 3.613 | 3.641 | 3.711 |
| 1927 | 4.229 | 4.186 | 4.143 | 4.143 | 4.262 | 4.271 | 4.067 | 4.024 | 3.993 | 4.036 | 3.919 | 3.993 | 4.110 |
| 1926 | 4.743 | 4.743 | 4.698 | 4.743 | 4.781 | 4.653 | 4.479 | 4.433 | 4.399 | 4.445 | 4.410 | 4.490 | 4.571 |
| 1925 | 4.850 | 4.799 | 4.850 | 4.799 | 4.940 | 4.950 | 4.961 | 4.961 | 4.873 | 4.873 | 4.933 | 4.971 | 4.862 |
| 1924 | 5.302 | 5.247 | 5.191 | 5.135 | 5.233 | 5.135 | 5.094 | 5.038 | 4.998 | 5.054 | 4.959 | 5.109 | 5.094 |
| 1923 | 5.538 | 5.538 | 5.538 | 5.601 | 5.709 | 5.663 | 5.679 | 5.618 | 5.573 | 5.634 | 5.529 | 5.634 | 5.618 |
| 1922 | 6.242 | 6.242 | 6.101 | 6.101 | 6.222 | 6.101 | 6.052 | 5.911 | 5.793 | 5.864 | 5.817 | 6.004 | 6.052 |
| 1921 | 8.628 | 8.193 | 8.119 | 7.971 | 7.808 | 7.593 | 7.533 | 7.533 | 7.246 | 7.246 | 7.036 | 7.092 | 7.684 |
| 1920 | 10.166 | 10.328 | 10.489 | 10.964 | 11.360 | 11.427 | 11.189 | 10.803 | 10.409 | 10.330 | 10.094 | 9.930 | 10.568 |
| 1919 | 9.071 | 8.738 | 8.961 | 9.290 | 9.695 | 9.507 | 9.855 | 10.168 | 10.087 | 10.394 | 10.614 | 11.193 | 9.749 |
| 1918 | 7.394 | 7.547 | 7.394 | 7.699 | 8.373 | 8.447 | 8.810 | 9.239 | 9.441 | 9.856 | 10.046 | 10.534 | 8.810 |
| 1917 | 4.530 | 5.193 | 5.193 | 6.484 | 7.179 | 7.320 | 6.634 | 7.048 | 7.390 | 7.791 | 7.523 | 8.188 | 6.634 |
| 1916 | 2.001 | 2.001 | 2.326 | 2.650 | 3.325 | 3.292 | 2.943 | 3.260 | 3.540 | 4.158 | 4.422 | 5.072 | 3.260 |
| 1915 | 1.519 | 1.015 | 0.509 | 1.015 | 2.041 | 1.519 | 1.005 | 1.005 | 0.499 | 0.995 | 0.985 | 1.489 | 1.005 |
| 1914 | 2.041 | 1.020 | 1.020 | 0.000 | 2.062 | 1.020 | 1.010 | 3.030 | 2.000 | 1.000 | 0.990 | 1.000 | 1.010 |
| 1913 | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
