Year | Value | 2022 | 262.6183339656 | 2021 | 219.0789001397 | 2020 | 200.07897900463 | 2019 | 182.32093267149 | 2018 | 164.8793938551 | 2017 | 156.91134586662 | 2016 | 150.75254122499 | 2015 | 145.28248263018 | 2014 | 141.69846347348 | 2013 | 132.19449365979 | 2012 | 122.75220259655 | 2011 | 111.91609271163 | 2010 | 100 | 2009 | 88.543474448671 | 2008 | 77.910440560645 | 2007 | 64.770931053997 | 2006 | 60.196768583976 | 2005 | 55.778506042929 | 2004 | 51.143227873054 | 2003 | 47.599615168261 | 2002 | 46.25177611097 | 2001 | 44.778411993496 | 2000 | 43.411698234952 | 1999 | 41.595368058907 | 1998 | 39.940766995064 | 1997 | 37.599093867064 | 1996 | 33.758857440368 | 1995 | 30.585931456102 | 1994 | 27.225349111929 | 1993 | 24.228696793456 | 1992 | 22.03136255054 | 1991 | 20.118304622551 | 1990 | 17.996310948285 | 1989 | 16.502484354992 | 1988 | 15.3021436932 | 1987 | 14.059567934152 | 1986 | 13.430840918179 | 1985 | 12.975853734101 | 1984 | 12.28601381225 | 1983 | 11.581055645359 | 1982 | 10.888336057786 | 1981 | 10.281372285485 | 1980 | 9.1896498266259 | 1979 | 8.2095721469427 | 1978 | 7.5827062584881 | 1977 | 7.1441489130147 | 1976 | 6.4868395567913 | 1975 | 6.0535097330041 | 1974 | 5.0068519033502 | 1973 | 3.9528911565488 | 1972 | 3.2119025414358 | 1971 | 3.0536258564897 | 1970 | 2.9156933972933 | 1969 | 2.7676296158709 | 1968 | 2.6821498541764 | 1967 | 2.6775811684265 | 1966 | 2.5068308978202 | 1965 | 2.3378592758694 | 1964 | 2.2145396359948 | 1963 | 2.1256943920451 | 1962 | 2.0951783612491 | 1961 | 2.1060553417098 | 1960 | 2.07206477777 |
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