Year | Value | 2022 | 0.25677811613467 | 2021 | 0.34180375778452 | 2020 | 0.47460772203738 | 2019 | 0.56793439926437 | 2018 | 0.65602085706618 | 2017 | 0.7657560351457 | 2016 | 0.75493844583754 | 2015 | 0.76456856769323 | 2014 | 0.80640889892693 | 2013 | 0.84449596380102 | 2012 | 0.86208743835192 | 2011 | 0.77055661630425 | 2010 | 0.72727801886924 | 2009 | 0.73899822573374 | 2008 | 0.75443791035991 | 2007 | 0.76630718149431 | 2006 | 0.79022966781753 | 2005 | 0.81150121914621 | 2004 | 0.82245426809631 | 2003 | 0.85527935478756 | 2002 | 0.89722481664498 | 2001 | 0.94499184345551 | 2000 | 1.0040612476485 | 1999 | 1.0841036305846 | 1998 | 1.1731187223215 | 1997 | 1.23291768699 | 1996 | 1.2576721809818 | 1995 | 1.2932021101795 | 1994 | 1.3417489397308 | 1993 | 1.3736787775944 | 1992 | 1.4347646276179 | 1991 | 1.540749087388 | 1990 | 1.6257197454315 | 1989 | 1.6803745609554 | 1988 | 1.7469332469332 | 1987 | 1.7544745520011 | 1986 | 1.6831518702932 | 1985 | 1.6077908042999 | 1984 | 1.5879842648366 | 1983 | 1.6930004839204 | 1982 | 1.7157400326906 | 1981 | 1.57499337347 | 1980 | 1.5489104431972 | 1979 | 1.6086289368051 | 1978 | 1.6172473791464 | 1977 | 1.6186606284031 | 1976 | 1.7409746885154 | 1975 | 1.9208557448596 | 1974 | 2.1730884912285 | 1973 | 2.3543982663947 | 1972 | 2.4969541517337 | 1971 | 2.7205503733789 | 1970 | 2.7365749006096 | 1969 | 2.7290844409326 | 1968 | 2.6308530903738 | 1967 | 2.5979213238538 | 1966 | 2.7480878277106 | 1965 | 2.4636240096952 | 1964 | 2.4559782171727 | 1963 | 2.5634771742666 | 1962 | 1.312424274924 | 1961 | 0.082579202269855 |
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