Year | Value | 2022 | 163.07175241812 | 2021 | 156.48459018833 | 2020 | 154.08073063151 | 2019 | 151.17667507135 | 2018 | 146.72989836053 | 2017 | 142.18241227392 | 2016 | 136.96566660822 | 2015 | 132.30099142979 | 2014 | 124.38615003282 | 2013 | 116.90985219041 | 2012 | 109.86475985121 | 2011 | 105.35604778982 | 2010 | 100 | 2009 | 95.116523631734 | 2008 | 91.119637675498 | 2007 | 82.665694412249 | 2006 | 77.68852994277 | 2005 | 68.684857227477 | 2004 | 62.184579722792 | 2003 | 58.629265926705 | 2002 | 54.918264591051 | 2001 | 49.07793287927 | 2000 | 44.016037949783 | 1999 | 42.450211321688 | 1998 | 35.234873444891 | 1997 | 22.237072379178 | 1996 | 20.933709948557 | 1995 | 19.387861313998 | 1994 | 17.718702288647 | 1993 | 16.325785418918 | 1992 | 14.886024956351 | 1991 | 13.844436406209 | 1990 | 12.652673697054 | 1989 | 11.735084939157 | 1988 | 11.027604595545 | 1987 | 10.206457607858 | 1986 | 9.3398454640264 | 1985 | 8.8259403511368 | 1984 | 8.4277674316188 | 1983 | 7.630043705214 | 1982 | 6.8247418729433 | 1981 | 6.2357489481158 | 1980 | 5.5544457178891 | 1979 | 4.7057444618793 | 1978 | 4.0485524295253 | 1977 | 3.7447560055816 | 1976 | 3.3720716219812 | 1975 | 2.8140778670062 | 1974 | 2.3614831572312 | 1973 | 1.6808691453508 | 1972 | 1.2826961342789 | 1971 | 1.2041636039191 | 1970 | 1.155253088475 | 1969 | 1.0278101342252 | 1968 | 0.89003402264842 | 1967 | 0.38892771857644 | 1966 | 0.18879986338662 | 1965 | 0.015271930060517 | 1964 | 0.0037545022332469 | 1963 | 0.0017964580305916 | 1962 | 0.0007305324417674 | 1961 | 0.00031570407567085 | 1960 | 0.00027768379989114 |
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