Year | Value | 2022 | 96.307750754091 | 2021 | 97.062002728818 | 2020 | 98.697120008649 | 2019 | 99.269678685815 | 2018 | 98.851164033936 | 2017 | 97.880905818971 | 2016 | 97.670114444204 | 2015 | 97.225697084068 | 2014 | 98.348895768723 | 2013 | 98.116096344038 | 2012 | 97.36787889548 | 2011 | 96.819414377159 | 2010 | 95.46951637245 | 2009 | 95.436507866336 | 2008 | 92.042521357281 | 2007 | 91.478477913404 | 2006 | 92.482834169108 | 2005 | 94.73069044576 | 2004 | 97.083445165613 | 2003 | 97.642124900212 | 2002 | 97.136886688855 | 2001 | 97.474845729596 | 2000 | 97.143816774267 | 1999 | 96.681016502116 | 1998 | 95.265017063941 | 1997 | 95.171340391855 | 1996 | 97.589190134301 | 1995 | 97.899997796013 | 1994 | 98.229339607471 | 1993 | 101.63205122765 | 1992 | 98.787150875252 | 1991 | 97.155151600442 | 1990 | 97.806971821881 | 1989 | 101.49183905356 | 1988 | 101.19378342889 | 1987 | 100.10344321792 | 1986 | 102.59518330998 | 1985 | 104.13495584742 | 1984 | 100.14255948494 | 1983 | 99.377340302369 | 1982 | 98.546452895888 | 1981 | 99.365103982793 | 1980 | 99.294563780974 | 1979 | 99.191990770917 | 1978 | 98.321372414024 | 1977 | 97.119793347692 | 1976 | 99.043567064846 | 1975 | 97.027563401875 | 1974 | 97.134747070057 | 1973 | 96.408995940062 | 1972 | 95.530551524056 | 1971 | 96.847672644389 | 1970 | 96.768049774093 | 1969 | 94.219158444603 | 1968 | 97.790241356574 | 1967 | 95.046205127633 | 1966 | 96.607302366707 | 1965 | 93.761879296424 | 1964 | 97.553056309953 | 1963 | 102.9247724265 | 1962 | 100.59103291172 | 1961 | 103.37813306013 | 1960 | 102.47783803143 |
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