Year | Value | 2022 | 94.089292533312 | 2021 | 94.836666383068 | 2020 | 95.610154062971 | 2019 | 90.628369751726 | 2018 | 89.936602596612 | 2017 | 91.073065291658 | 2016 | 90.027065630218 | 2015 | 88.709853433435 | 2014 | 86.348148460605 | 2013 | 85.500498121299 | 2012 | 83.628078917062 | 2011 | 82.960023292476 | 2010 | 78.285523001418 | 2009 | 78.648606272965 | 2008 | 77.504649631286 | 2007 | 78.206940809594 | 2006 | 78.434397961369 | 2005 | 78.70721979413 | 2004 | 79.227570580738 | 2003 | 80.100188843531 | 2002 | 79.961825100604 | 2001 | 77.739523221531 | 2000 | 77.279892910775 | 1999 | 77.326773418382 | 1998 | 78.022757023462 | 1997 | 77.813663188542 | 1996 | 76.487834556259 | 1995 | 79.205127904386 | 1994 | 78.295539339058 | 1993 | 78.280706540271 | 1992 | 77.73570313298 | 1991 | 78.966314179303 | 1990 | 79.979104450012 | 1989 | 79.40437335113 | 1988 | 78.929866291019 | 1987 | 77.505506950581 | 1986 | 80.519244734931 | 1985 | 75.867375290312 | 1984 | 75.466284074605 | 1983 | 74.859300294631 | 1982 | 78.802764132878 | 1981 | 76.138875540605 | 1980 | 76.003389351786 | 1979 | 73.559206023272 | 1978 | 77.01598293007 | 1977 | 77.886764907158 | 1976 | 74.273150543197 | 1975 | 73.854370047089 | 1974 | 71.036309600724 | 1973 | 79.075827325632 | 1972 | 76.674473067916 | 1971 | 78.812982296868 | 1970 | 81.604023292747 | 1969 | 68.089190785588 | 1968 | 66.990748000627 | 1967 | 68.122807017544 | 1966 | 67.15462031107 | 1965 | 67.441860465116 |
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