Year | Value | 2022 | 63.132 | 2021 | 63.306 | 2020 | 63.463 | 2019 | 63.604 | 2018 | 63.728 | 2017 | 63.836 | 2016 | 63.928 | 2015 | 64.003 | 2014 | 64.062 | 2013 | 64.104 | 2012 | 64.131 | 2011 | 64.141 | 2010 | 64.135 | 2009 | 64.129 | 2008 | 64.123 | 2007 | 64.117 | 2006 | 64.111 | 2005 | 64.105 | 2004 | 64.099 | 2003 | 64.093 | 2002 | 64.087 | 2001 | 64.081 | 2000 | 64.302 | 1999 | 64.55 | 1998 | 64.796 | 1997 | 65.041 | 1996 | 65.286 | 1995 | 65.53 | 1994 | 65.773 | 1993 | 66.015 | 1992 | 66.256 | 1991 | 66.497 | 1990 | 66.573 | 1989 | 66.623 | 1988 | 66.673 | 1987 | 66.723 | 1986 | 66.773 | 1985 | 66.823 | 1984 | 66.872 | 1983 | 66.922 | 1982 | 66.972 | 1981 | 67.022 | 1980 | 67.088 | 1979 | 67.159 | 1978 | 67.229 | 1977 | 67.299 | 1976 | 67.369 | 1975 | 67.439 | 1974 | 67.509 | 1973 | 67.579 | 1972 | 67.649 | 1971 | 67.719 | 1970 | 67.788 | 1969 | 67.96 | 1968 | 68.152 | 1967 | 68.344 | 1966 | 68.535 | 1965 | 68.726 | 1964 | 68.915 | 1963 | 69.105 | 1962 | 69.293 | 1961 | 69.481 | 1960 | 69.668 |
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