Year | Value | 2022 | 0.073830120393762 | 2021 | 0.039793393683045 | 2020 | 0.23095038887862 | 2019 | 0.049568665433069 | 2018 | 0.013066892493329 | 2017 | 0.10687056942997 | 2016 | 0.17024523869823 | 2015 | 0.19255794650824 | 2014 | 0.217642262118 | 2013 | 0.21295070454925 | 2012 | 0.16830503527773 | 2011 | 0.077981777433695 | 2010 | 0.044895788090849 | 2009 | 0.030107760519622 | 2008 | 0.043949259163485 | 2007 | 0.17108203294568 | 2006 | 0.32744527010838 | 2005 | 0.38145279474152 | 2004 | 0.40268147132855 | 2003 | 0.45378066802026 | 2002 | 0.46002425808139 | 2001 | 0.42409052478541 | 2000 | 0.42061499024998 | 1999 | 0.30927819150434 | 1998 | 0.16548614334806 | 1997 | 0.16534165375319 | 1996 | 0.14545154659836 | 1995 | 0.021648763212875 | 1994 | 0.034267907031995 | 1993 | 0.053482027660683 | 1992 | 0.096978979040876 | 1991 | 0.28668112951553 | 1990 | 0.16801834118217 | 1989 | 0.58660353288111 | 1988 | 0.64830380943967 | 1987 | 0.6973845500469 | 1986 | 0.71757386643577 | 1985 | 0.77668802844715 | 1984 | 0.75735296762605 | 1983 | 0.59825093205831 | 1982 | 0.62828774442411 | 1981 | 0.66750322228974 | 1980 | 0.7096554795274 | 1979 | 0.70305320360497 | 1978 | 0.70288765002572 | 1977 | 0.70268347396018 | 1976 | 0.70318503802372 | 1975 | 0.57392397627093 | 1974 | 0.57346803735116 | 1973 | 0.57450134956565 | 1972 | 0.57324610343637 | 1971 | 0.57425060026255 | 1970 | 0.56908346825514 | 1969 | 0.56923801772267 | 1968 | 0.5693766257186 | 1967 | 0.56949900462763 | 1966 | 0.56881587440196 | 1965 | 1.1107258465437 | 1964 | 1.1111002576471 | 1963 | 1.1105321573707 | 1962 | 1.1114552112245 | 1961 | 1.1106018363863 |
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