Year | Value | 2022 | 86.884 | 2021 | 86.789 | 2020 | 86.699 | 2019 | 86.615 | 2018 | 86.538 | 2017 | 86.466 | 2016 | 86.4 | 2015 | 86.341 | 2014 | 86.281 | 2013 | 86.221 | 2012 | 86.161 | 2011 | 86.1 | 2010 | 86.16 | 2009 | 86.22 | 2008 | 86.28 | 2007 | 86.34 | 2006 | 86.4 | 2005 | 86.341 | 2004 | 86.281 | 2003 | 86.221 | 2002 | 86.161 | 2001 | 86.1 | 2000 | 86.021 | 1999 | 85.941 | 1998 | 85.861 | 1997 | 85.781 | 1996 | 85.7 | 1995 | 85.553 | 1994 | 85.404 | 1993 | 85.254 | 1992 | 85.103 | 1991 | 84.95 | 1990 | 84.742 | 1989 | 84.506 | 1988 | 84.268 | 1987 | 84.025 | 1986 | 83.78 | 1985 | 83.673 | 1984 | 83.633 | 1983 | 83.592 | 1982 | 83.552 | 1981 | 83.511 | 1980 | 83.428 | 1979 | 83.328 | 1978 | 83.229 | 1977 | 83.128 | 1976 | 83.028 | 1975 | 82.774 | 1974 | 82.46 | 1973 | 82.141 | 1972 | 81.819 | 1971 | 81.491 | 1970 | 81.106 | 1969 | 80.695 | 1968 | 80.277 | 1967 | 79.852 | 1966 | 79.421 | 1965 | 78.891 | 1964 | 78.317 | 1963 | 77.73 | 1962 | 77.133 | 1961 | 76.525 | 1960 | 75.998 |
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