Year | Value | 2022 | 61.234 | 2021 | 61.948 | 2020 | 62.66 | 2019 | 63.372 | 2018 | 64.081 | 2017 | 64.787 | 2016 | 65.49 | 2015 | 66.191 | 2014 | 66.885 | 2013 | 67.571 | 2012 | 68.248 | 2011 | 68.92 | 2010 | 69.583 | 2009 | 70.238 | 2008 | 70.872 | 2007 | 71.496 | 2006 | 72.112 | 2005 | 72.719 | 2004 | 73.317 | 2003 | 73.908 | 2002 | 74.489 | 2001 | 75.063 | 2000 | 75.626 | 1999 | 76.183 | 1998 | 76.629 | 1997 | 77.035 | 1996 | 77.437 | 1995 | 77.834 | 1994 | 78.226 | 1993 | 78.613 | 1992 | 78.994 | 1991 | 79.371 | 1990 | 79.743 | 1989 | 80.109 | 1988 | 80.248 | 1987 | 80.312 | 1986 | 80.375 | 1985 | 80.439 | 1984 | 80.502 | 1983 | 80.565 | 1982 | 80.628 | 1981 | 80.691 | 1980 | 80.753 | 1979 | 80.825 | 1978 | 80.924 | 1977 | 81.022 | 1976 | 81.12 | 1975 | 81.218 | 1974 | 81.315 | 1973 | 81.412 | 1972 | 81.508 | 1971 | 81.604 | 1970 | 81.7 | 1969 | 82.089 | 1968 | 82.471 | 1967 | 82.847 | 1966 | 83.216 | 1965 | 83.579 | 1964 | 83.936 | 1963 | 84.286 | 1962 | 84.631 | 1961 | 84.969 | 1960 | 85.3 |
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