| Year | Value | | 2021 | 126,037.4 | | 2020 | 126,037.4 | | 2019 | 124,799.743 | | 2018 | 122,175.416 | | 2017 | 120,839.639 | | 2016 | 123,579.422 | | 2015 | 124,155.145 | | 2014 | 123,746.548 | | 2013 | 124,630.761 | | 2012 | 123,503.384 | | 2011 | 123,078.457 | | 2010 | 124,004.38 | | 2009 | 123,104.653 | | 2008 | 120,047.607 | | 2007 | 124,722.52 | | 2006 | 120,437.923 | | 2005 | 121,195.796 | | 2004 | 118,695.739 | | 2003 | 125,911.292 | | 2002 | 130,504.795 | | 2001 | 128,980.308 | | 2000 | 127,655.201 | | 1999 | 130,595.504 | | 1998 | 129,852.107 | | 1997 | 135,826.95 | | 1996 | 133,000 | | 1995 | 131,000 | | 1994 | 129,000 | | 1993 | 128,000 | | 1992 | 127,200 | | 1991 | 127,200 | | 1990 | 126,280 | | 1989 | 125,360 | | 1988 | 125,440 | | 1987 | 124,520 | | 1986 | 123,600 | | 1985 | 123,680 | | 1984 | 122,760 | | 1983 | 120,840 | | 1982 | 120,920 | | 1981 | 119,000 | | 1980 | 119,000 | | 1979 | 119,000 | | 1978 | 119,000 | | 1977 | 118,000 | | 1976 | 118,000 | | 1975 | 118,000 | | 1974 | 117,000 | | 1973 | 117,000 | | 1972 | 117,000 | | 1971 | 117,000 | | 1970 | 117,000 | | 1969 | 117,000 | | 1968 | 117,000 | | 1967 | 117,000 | | 1966 | 117,000 | | 1965 | 117,000 | | 1964 | 117,000 | | 1963 | 117,000 | | 1962 | 117,000 | | 1961 | 117,000 |
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