Year | Value | 2022 | 62.539 | 2021 | 62.854 | 2020 | 63.144 | 2019 | 63.409 | 2018 | 63.649 | 2017 | 63.865 | 2016 | 64.056 | 2015 | 64.223 | 2014 | 64.365 | 2013 | 64.483 | 2012 | 64.577 | 2011 | 64.648 | 2010 | 64.694 | 2009 | 64.716 | 2008 | 64.715 | 2007 | 64.713 | 2006 | 64.711 | 2005 | 64.71 | 2004 | 64.708 | 2003 | 64.707 | 2002 | 64.705 | 2001 | 64.704 | 2000 | 64.702 | 1999 | 64.7 | 1998 | 64.496 | 1997 | 64.215 | 1996 | 63.934 | 1995 | 63.651 | 1994 | 63.367 | 1993 | 63.082 | 1992 | 62.797 | 1991 | 62.51 | 1990 | 62.223 | 1989 | 61.935 | 1988 | 61.773 | 1987 | 61.723 | 1986 | 61.673 | 1985 | 61.623 | 1984 | 61.573 | 1983 | 61.523 | 1982 | 61.473 | 1981 | 61.423 | 1980 | 61.373 | 1979 | 61.323 | 1978 | 61.379 | 1977 | 61.524 | 1976 | 61.669 | 1975 | 61.814 | 1974 | 61.958 | 1973 | 62.103 | 1972 | 62.247 | 1971 | 62.391 | 1970 | 62.534 | 1969 | 62.786 | 1968 | 63.129 | 1967 | 63.47 | 1966 | 63.81 | 1965 | 64.149 | 1964 | 64.485 | 1963 | 64.822 | 1962 | 65.156 | 1961 | 65.489 | 1960 | 65.819 |
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