Year | Value | 2022 | 88.191282387551 | 2021 | 93.810662247823 | 2020 | 95.702531995604 | 2019 | 86.002836184382 | 2018 | 85.623350912967 | 2017 | 87.731760122998 | 2016 | 86.28357705367 | 2015 | 88.447224769972 | 2014 | 88.914934021505 | 2013 | 93.310357612001 | 2012 | 88.921438424752 | 2011 | 87.692661018786 | 2010 | 87.098740655696 | 2009 | 84.43814584723 | 2008 | 80.196854724291 | 2007 | 84.592389729753 | 2006 | 86.817743371261 | 2005 | 91.164200023537 | 2004 | 88.709743857944 | 2003 | 92.917711596592 | 2002 | 95.58029998769 | 2001 | 86.385409914317 | 2000 | 92.607239357654 | 1999 | 91.937826581675 | 1998 | 92.260904900302 | 1997 | 94.435949394007 | 1996 | 92.306620851367 | 1995 | 94.529777162688 | 1994 | 70.646442521478 | 1993 | 67.371378897186 | 1992 | 68.071442899798 | 1991 | 73.137192282053 | 1990 | 70.678136593138 | 1989 | 60.301842976185 | 1988 | 85.726833996065 | 1987 | 76.849080167654 | 1986 | 81.346844439647 | 1985 | 83.885806793913 | 1984 | 74.94348562881 | 1983 | 76.992146692261 | 1982 | 78.10477207295 | 1981 | 70.065824256435 | 1980 | 62.346008300629 | 1979 | 99.717871370059 | 1978 | 97.319754952227 | 1977 | 95.525774501553 | 1976 | 94.22621366424 | 1975 | 96.893397235758 | 1974 | 96.02087350997 | 1973 | 95.533574049233 | 1972 | 95.240351496763 | 1971 | 95.361537070742 | 1970 | 92.512412287557 | 1969 | 94.21896937404 | 1968 | 94.720436577825 | 1967 | 94.724897689882 | 1966 | 97.370538288633 | 1965 | 100.28742055286 | 1964 | 99.55290269888 | 1963 | 100.38567955422 | 1962 | 99.582028712198 | 1961 | 99.061094268761 | 1960 | 99.631001370231 |
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