Year | Value | 2022 | 145.96586835703 | 2021 | 137.93637393606 | 2020 | 132.7240608691 | 2019 | 129.62199600739 | 2018 | 126.59378983285 | 2017 | 120.21135245871 | 2016 | 116.87664244209 | 2015 | 115.429504133 | 2014 | 114.65649857658 | 2013 | 110.6746211174 | 2012 | 107.88820573963 | 2011 | 104.71841704718 | 2010 | 100 | 2009 | 96.348547717842 | 2008 | 92.448132780083 | 2007 | 85.394190871369 | 2006 | 82.98755186722 | 2005 | 78.672199170125 | 2004 | 73.858921161826 | 2003 | 70.45643153527 | 2002 | 68.879668049792 | 2001 | 67.053941908714 | 2000 | 63.651452282158 | 1999 | 61.216784232365 | 1998 | 57.784910096819 | 1997 | 52.899661134163 | 1996 | 50.098997233748 | 1995 | 46.6140802213 | 1994 | 43.633070539419 | 1993 | 39.52755186722 | 1992 | 37.039840940526 | 1991 | 34.090656984786 | 1990 | 28.584806362379 | 1989 | 25.481798063624 | 1988 | 22.70235131397 | 1987 | 19.938817427386 | 1986 | 19.15908713693 | 1985 | 18.941611341632 | 1984 | 15.386785740409 | 1983 | 10.234728336526 | 1982 | 9.3018160392079 | 1981 | 8.4391855224588 | 1980 | 7.4628507238054 | 1979 | 6.3137212289735 | 1978 | 5.3718558386315 | 1977 | 5.0047790229917 | 1976 | 4.5539907871998 | 1975 | 4.1703507493909 | 1974 | 3.9062345039915 | 1973 | 2.9115458645383 | 1972 | 2.4974653103104 | 1971 | 2.3081073919987 | 1970 | 1.9011893122223 | 1969 | 1.6621481176837 | 1968 | 1.6302680575286 | 1967 | 1.5926993621043 | 1966 | 1.4989553934023 | 1965 | 1.4221588172741 | 1964 | 1.3866048468398 | 1963 | 1.2817206340643 | 1962 | 1.213457010835 | 1961 | 1.1469710861261 | 1960 | 1.1289570744394 |
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