| Year | Value | | 2016 | 133.85092657704 | | 2015 | 130.09653434484 | | 2014 | 129.13550918359 | | 2013 | 127.55001290922 | | 2012 | 126.52738931904 | | 2011 | 115.31651591395 | | 2010 | 100 | | 2009 | 93.370681605975 | | 2008 | 90.82751128986 | | 2007 | 77.43089446284 | | 2006 | 66.2113196959 | | 2005 | 58.566776944882 | | 2004 | 48.275893257765 | | 2003 | 46.421634897109 | | 2002 | 41.126963690442 | | 2001 | 31.269887555907 | | 2000 | 6.7987384752801 | | 1999 | 1.1074544199211 | | 1998 | 0.2877289882236 | | 1997 | 0.22278873113684 | | 1996 | 0.074631913592035 | | 1995 | 0.012597339901356 | | 1994 | 0.001962481004748 | | 1993 | 8.2204589800695E-6 | | 1992 | 3.9390676230795E-7 | | 1991 | 9.3140444972143E-9 | | 1990 | 4.1314284726E-10 | | 1989 | 2.2788379423287E-10 | | 1988 | 1.1167203490342E-10 | | 1987 | 6.5270269975645E-11 | | 1986 | 3.6531112342958E-11 | | 1985 | 2.5298554254126E-11 | | 1984 | 2.0431589374857E-11 | | 1983 | 1.3421789728827E-11 | | 1982 | 7.6032633625774E-12 | | 1981 | 5.5620191540339E-12 | | 1980 | 4.1075920729003E-12 | | 1979 | 2.801409492835E-12 | | 1978 | 1.3933807164906E-12 | | 1977 | 9.3660666148092E-13 | | 1976 | 5.5437665977553E-13 | | 1975 | 3.073280551419E-13 | | 1974 | 2.3887214657246E-13 | | 1973 | 1.8450102189693E-13 | | 1972 | 1.5954394249022E-13 | | 1971 | 1.377704101287E-13 | | 1970 | 1.3024566256894E-13 | | 1969 | 1.2056960897608E-13 | | 1968 | 1.13556158366E-13 | | 1967 | 7.4063996536361E-14 | | 1966 | 5.409032077981E-14 | | 1965 | 4.671814948877E-14 | | 1964 | 4.8027859751973E-14 | | 1963 | 3.5465575285389E-14 |
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