Year | Value | 2022 | 73.384 | 2021 | 73.686 | 2020 | 73.974 | 2019 | 74.246 | 2018 | 74.505 | 2017 | 74.75 | 2016 | 74.98 | 2015 | 75.197 | 2014 | 75.413 | 2013 | 75.627 | 2012 | 75.84 | 2011 | 76.052 | 2010 | 76.263 | 2009 | 76.472 | 2008 | 76.68 | 2007 | 76.887 | 2006 | 77.093 | 2005 | 77.297 | 2004 | 77.5 | 2003 | 77.647 | 2002 | 77.739 | 2001 | 77.831 | 2000 | 77.922 | 1999 | 78.014 | 1998 | 78.105 | 1997 | 78.195 | 1996 | 78.286 | 1995 | 78.376 | 1994 | 78.466 | 1993 | 78.556 | 1992 | 78.645 | 1991 | 78.734 | 1990 | 78.823 | 1989 | 78.912 | 1988 | 79.002 | 1987 | 79.686 | 1986 | 80.353 | 1985 | 81.003 | 1984 | 81.635 | 1983 | 82.253 | 1982 | 82.853 | 1981 | 83.438 | 1980 | 84.005 | 1979 | 84.558 | 1978 | 85.027 | 1977 | 85.483 | 1976 | 85.926 | 1975 | 86.359 | 1974 | 86.781 | 1973 | 87.191 | 1972 | 87.59 | 1971 | 87.979 | 1970 | 88.357 | 1969 | 88.725 | 1968 | 89.082 | 1967 | 89.43 | 1966 | 89.767 | 1965 | 90.096 | 1964 | 90.414 | 1963 | 90.724 | 1962 | 91.024 | 1961 | 91.316 | 1960 | 91.599 |
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