Year | Value | 2022 | 67.926 | 2021 | 68.305 | 2020 | 68.68 | 2019 | 69.053 | 2018 | 69.422 | 2017 | 69.788 | 2016 | 70.15 | 2015 | 70.51 | 2014 | 70.867 | 2013 | 71.221 | 2012 | 71.572 | 2011 | 71.921 | 2010 | 72.268 | 2009 | 72.611 | 2008 | 72.952 | 2007 | 73.291 | 2006 | 73.626 | 2005 | 73.959 | 2004 | 74.29 | 2003 | 74.657 | 2002 | 75.021 | 2001 | 75.381 | 2000 | 75.737 | 1999 | 76.09 | 1998 | 76.439 | 1997 | 76.785 | 1996 | 77.127 | 1995 | 77.466 | 1994 | 77.801 | 1993 | 78.133 | 1992 | 78.46 | 1991 | 78.785 | 1990 | 79.158 | 1989 | 79.63 | 1988 | 80.093 | 1987 | 80.549 | 1986 | 80.997 | 1985 | 81.437 | 1984 | 81.868 | 1983 | 82.292 | 1982 | 82.709 | 1981 | 83.117 | 1980 | 83.517 | 1979 | 83.911 | 1978 | 84.296 | 1977 | 84.674 | 1976 | 85.044 | 1975 | 85.407 | 1974 | 85.763 | 1973 | 86.111 | 1972 | 86.452 | 1971 | 86.787 | 1970 | 87.114 | 1969 | 87.434 | 1968 | 87.747 | 1967 | 88.054 | 1966 | 88.354 | 1965 | 88.647 | 1964 | 88.934 | 1963 | 89.215 | 1962 | 89.489 | 1961 | 89.757 | 1960 | 89.909 |
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