Year | Value | 2022 | 209.47552353976 | 2021 | 200.74267123526 | 2020 | 193.59715588679 | 2019 | 187.43015893339 | 2018 | 181.1544601506 | 2017 | 175.03783564472 | 2016 | 166.19822402489 | 2015 | 158.02100625721 | 2014 | 149.65787072662 | 2013 | 141.0115842217 | 2012 | 130.72275725599 | 2011 | 112.69096946992 | 2010 | 100 | 2009 | 94.161820290532 | 2008 | 83.966425561011 | 2007 | 76.140413998175 | 2006 | 71.142301390982 | 2005 | 66.332546598434 | 2004 | 63.15306145387 | 2003 | 60.297491961577 | 2002 | 57.260636205246 | 2001 | 54.369363871896 | 2000 | 51.707725259485 | 1999 | 48.81589087519 | 1998 | 45.245801091593 | 1997 | 40.111613250819 | 1996 | 34.551974295938 | 1995 | 28.560718268773 | 1994 | 22.413257967831 | 1993 | 16.715912613697 | 1992 | 13.343133491715 | 1991 | 10.950741719633 | 1990 | 8.5090222821475 | 1989 | 6.2646135062767 | 1988 | 4.9778478803257 | 1987 | 3.7944754967672 | 1986 | 2.9199645294633 | 1985 | 2.2048750187811 | 1984 | 1.6542918782809 | 1983 | 1.2150871777642 | 1982 | 0.95634040959816 | 1981 | 0.74173822434075 | 1980 | 0.59032079832324 | 1979 | 0.45340479245915 | 1978 | 0.40142567606508 | 1977 | 0.37666026372515 | 1976 | 0.33749668258491 | 1975 | 0.31583261782999 | 1974 | 0.25054596054746 | 1973 | 0.20948940287562 | 1972 | 0.18976038079746 | 1971 | 0.17629921434796 | 1970 | 0.16826458062316 | 1969 | 0.1625856510271 | 1968 | 0.13965960191792 | 1967 | 0.12081396888635 | 1966 | 0.10768933159936 | 1965 | 0.098098250502112 |
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