Year | Value | 2022 | 54.959 | 2021 | 55.383 | 2020 | 55.804 | 2019 | 56.223 | 2018 | 56.64 | 2017 | 57.055 | 2016 | 57.467 | 2015 | 57.877 | 2014 | 58.285 | 2013 | 58.69 | 2012 | 59.092 | 2011 | 59.492 | 2010 | 59.889 | 2009 | 60.284 | 2008 | 60.675 | 2007 | 61.066 | 2006 | 61.455 | 2005 | 61.843 | 2004 | 62.228 | 2003 | 62.613 | 2002 | 62.996 | 2001 | 63.378 | 2000 | 63.757 | 1999 | 64.135 | 1998 | 64.512 | 1997 | 64.886 | 1996 | 65.258 | 1995 | 65.629 | 1994 | 65.998 | 1993 | 66.365 | 1992 | 66.729 | 1991 | 67.61 | 1990 | 69.17 | 1989 | 70.688 | 1988 | 72.159 | 1987 | 73.587 | 1986 | 74.966 | 1985 | 76.296 | 1984 | 77.574 | 1983 | 78.806 | 1982 | 79.987 | 1981 | 81.117 | 1980 | 82.196 | 1979 | 83.23 | 1978 | 83.543 | 1977 | 83.713 | 1976 | 83.882 | 1975 | 84.05 | 1974 | 84.217 | 1973 | 84.382 | 1972 | 84.545 | 1971 | 84.707 | 1970 | 84.868 | 1969 | 85.028 | 1968 | 85.185 | 1967 | 85.342 | 1966 | 85.497 | 1965 | 85.651 | 1964 | 85.803 | 1963 | 85.955 | 1962 | 86.105 | 1961 | 86.253 | 1960 | 86.4 |
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