Year | Value | 2022 | 42.066 | 2021 | 42.71 | 2020 | 43.359 | 2019 | 44.015 | 2018 | 44.675 | 2017 | 45.341 | 2016 | 46.011 | 2015 | 46.687 | 2014 | 47.365 | 2013 | 48.045 | 2012 | 48.724 | 2011 | 49.405 | 2010 | 50.086 | 2009 | 50.866 | 2008 | 51.665 | 2007 | 52.465 | 2006 | 53.262 | 2005 | 54.058 | 2004 | 54.851 | 2003 | 55.644 | 2002 | 56.432 | 2001 | 57.217 | 2000 | 57.998 | 1999 | 59.208 | 1998 | 60.407 | 1997 | 61.594 | 1996 | 62.765 | 1995 | 63.924 | 1994 | 65.067 | 1993 | 66.192 | 1992 | 67.297 | 1991 | 68.387 | 1990 | 69.416 | 1989 | 70.349 | 1988 | 71.264 | 1987 | 72.165 | 1986 | 73.047 | 1985 | 73.911 | 1984 | 74.756 | 1983 | 75.585 | 1982 | 76.394 | 1981 | 77.185 | 1980 | 77.896 | 1979 | 78.476 | 1978 | 79.044 | 1977 | 79.602 | 1976 | 80.147 | 1975 | 80.683 | 1974 | 81.207 | 1973 | 81.72 | 1972 | 82.221 | 1971 | 82.662 | 1970 | 82.929 | 1969 | 83.191 | 1968 | 83.451 | 1967 | 83.707 | 1966 | 83.961 | 1965 | 84.211 | 1964 | 84.457 | 1963 | 84.701 | 1962 | 84.942 | 1961 | 85.179 | 1960 | 85.414 |
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