Year | Value | 2022 | 75.424 | 2021 | 75.631 | 2020 | 75.829 | 2019 | 76.019 | 2018 | 76.201 | 2017 | 76.375 | 2016 | 76.541 | 2015 | 76.7 | 2014 | 76.851 | 2013 | 77.001 | 2012 | 77.151 | 2011 | 77.3 | 2010 | 77.52 | 2009 | 77.738 | 2008 | 77.955 | 2007 | 78.171 | 2006 | 78.09 | 2005 | 77.962 | 2004 | 77.834 | 2003 | 77.704 | 2002 | 77.575 | 2001 | 77.445 | 2000 | 77.314 | 1999 | 77.183 | 1998 | 77.051 | 1997 | 76.919 | 1996 | 77.278 | 1995 | 77.714 | 1994 | 78.143 | 1993 | 78.566 | 1992 | 78.982 | 1991 | 79.393 | 1990 | 79.798 | 1989 | 80.197 | 1988 | 80.59 | 1987 | 80.978 | 1986 | 81.359 | 1985 | 81.734 | 1984 | 82.103 | 1983 | 82.467 | 1982 | 82.824 | 1981 | 83.176 | 1980 | 83.522 | 1979 | 83.863 | 1978 | 84.197 | 1977 | 84.526 | 1976 | 84.963 | 1975 | 85.996 | 1974 | 86.967 | 1973 | 87.88 | 1972 | 88.736 | 1971 | 89.542 | 1970 | 90.295 | 1969 | 90.999 | 1968 | 91.656 | 1967 | 92.271 | 1966 | 92.843 | 1965 | 93.506 | 1964 | 94.124 | 1963 | 94.688 | 1962 | 95.2 | 1961 | 95.665 | 1960 | 96.087 |
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