Year | Value | 2022 | 54.239 | 2021 | 54.808 | 2020 | 55.371 | 2019 | 55.928 | 2018 | 56.479 | 2017 | 57.024 | 2016 | 57.562 | 2015 | 58.093 | 2014 | 58.618 | 2013 | 59.135 | 2012 | 59.646 | 2011 | 60.149 | 2010 | 60.645 | 2009 | 61.139 | 2008 | 61.629 | 2007 | 62.119 | 2006 | 62.605 | 2005 | 63.089 | 2004 | 63.57 | 2003 | 64.049 | 2002 | 64.525 | 2001 | 64.998 | 2000 | 65.198 | 1999 | 64.742 | 1998 | 64.284 | 1997 | 63.824 | 1996 | 63.362 | 1995 | 62.896 | 1994 | 62.428 | 1993 | 61.958 | 1992 | 61.486 | 1991 | 61.011 | 1990 | 60.593 | 1989 | 60.544 | 1988 | 60.494 | 1987 | 60.444 | 1986 | 60.394 | 1985 | 60.345 | 1984 | 60.295 | 1983 | 60.245 | 1982 | 60.195 | 1981 | 60.146 | 1980 | 60.185 | 1979 | 61.182 | 1978 | 62.168 | 1977 | 63.145 | 1976 | 64.11 | 1975 | 65.066 | 1974 | 66.008 | 1973 | 66.939 | 1972 | 67.854 | 1971 | 68.759 | 1970 | 69.649 | 1969 | 70.63 | 1968 | 72.209 | 1967 | 73.739 | 1966 | 75.211 | 1965 | 76.628 | 1964 | 77.985 | 1963 | 79.288 | 1962 | 80.215 | 1961 | 81.049 | 1960 | 81.855 |
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