Year | Value | 2022 | 166.89036932144 | 2021 | 154.67667208917 | 2020 | 146.35048773506 | 2019 | 141.54252296997 | 2018 | 136.57664871233 | 2017 | 130.19780247675 | 2016 | 122.78009550721 | 2015 | 119.41067511672 | 2014 | 116.24798517759 | 2013 | 111.75690425193 | 2012 | 107.65898274763 | 2011 | 103.40737824606 | 2010 | 100 | 2009 | 96.009161061915 | 2008 | 91.179080703332 | 2007 | 86.733979232934 | 2006 | 83.424649320092 | 2005 | 80.502825337738 | 2004 | 77.415452838715 | 2003 | 73.948447292573 | 2002 | 70.732319377097 | 2001 | 67.34440594117 | 2000 | 63.312811918304 | 1999 | 57.824375736543 | 1998 | 49.598207085055 | 1997 | 42.783484650114 | 1996 | 35.467988935687 | 1995 | 26.394117926461 | 1994 | 19.551303999239 | 1993 | 18.278086769687 | 1992 | 16.654071566928 | 1991 | 14.418123874751 | 1990 | 11.754318063671 | 1989 | 9.2808233998396 | 1988 | 7.7335118776892 | 1987 | 3.6110526336821 | 1986 | 1.5576471478797 | 1985 | 0.83639553493194 | 1984 | 0.53020840674546 | 1983 | 0.32046674494065 | 1982 | 0.1587451852238 | 1981 | 0.099894134410133 | 1980 | 0.078082698719523 | 1979 | 0.061797924982672 | 1978 | 0.052286380690545 | 1977 | 0.044515227234914 | 1976 | 0.03449078303891 | 1975 | 0.029778429248628 | 1974 | 0.025906781337323 | 1973 | 0.020929019990744 | 1972 | 0.01867296380785 | 1971 | 0.017793316956222 | 1970 | 0.016870655893944 | 1969 | 0.016066769225683 | 1968 | 0.015543421693885 | 1967 | 0.015188919759199 | 1966 | 0.014744097921792 | 1965 | 0.014147662414068 | 1964 | 0.013660259089065 | 1963 | 0.013348191301184 | 1962 | 0.013269363979871 | 1961 | 0.013112151359653 | 1960 | 0.012904548190089 |
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