Year | Value | 2022 | 70.998 | 2021 | 71.507 | 2020 | 72.005 | 2019 | 72.493 | 2018 | 72.97 | 2017 | 73.438 | 2016 | 73.895 | 2015 | 74.342 | 2014 | 74.779 | 2013 | 75.206 | 2012 | 75.624 | 2011 | 76.031 | 2010 | 76.429 | 2009 | 76.817 | 2008 | 77.2 | 2007 | 77.58 | 2006 | 77.955 | 2005 | 78.325 | 2004 | 78.69 | 2003 | 79.052 | 2002 | 79.409 | 2001 | 79.761 | 2000 | 80.108 | 1999 | 80.45 | 1998 | 80.778 | 1997 | 81.102 | 1996 | 81.421 | 1995 | 81.737 | 1994 | 82.048 | 1993 | 82.355 | 1992 | 82.658 | 1991 | 82.957 | 1990 | 83.252 | 1989 | 83.515 | 1988 | 83.617 | 1987 | 83.719 | 1986 | 83.82 | 1985 | 83.921 | 1984 | 84.021 | 1983 | 84.121 | 1982 | 84.22 | 1981 | 84.319 | 1980 | 84.417 | 1979 | 84.599 | 1978 | 85.255 | 1977 | 85.888 | 1976 | 86.497 | 1975 | 87.086 | 1974 | 87.651 | 1973 | 88.195 | 1972 | 88.718 | 1971 | 89.222 | 1970 | 89.705 | 1969 | 90.15 | 1968 | 90.475 | 1967 | 90.791 | 1966 | 91.098 | 1965 | 91.395 | 1964 | 91.682 | 1963 | 91.962 | 1962 | 92.226 | 1961 | 92.435 | 1960 | 92.638 |
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