Year | Value | 2021 | 105,955.37 | 2020 | 109,641.63 | 2019 | 113,306.88 | 2018 | 116,982.15 | 2017 | 120,647.41 | 2016 | 124,312.67 | 2015 | 127,977.92 | 2014 | 131,653.19 | 2013 | 135,318.45 | 2012 | 138,983.7 | 2011 | 142,648.96 | 2010 | 146,314.22 | 2009 | 149,989.49 | 2008 | 153,654.74 | 2007 | 157,320 | 2006 | 158,000 | 2005 | 158,850 | 2004 | 159,350 | 2003 | 154,250 | 2002 | 155,650 | 2001 | 151,500 | 2000 | 151,100 | 1999 | 150,600 | 1998 | 152,190 | 1997 | 152,220 | 1996 | 152,320 | 1995 | 153,300 | 1994 | 154,500 | 1993 | 154,770 | 1992 | 155,560 | 1991 | 157,890 | 1990 | 158,990 | 1989 | 161,690 | 1988 | 161,540 | 1987 | 161,630 | 1986 | 164,360 | 1985 | 164,720 | 1984 | 165,000 | 1983 | 165,500 | 1982 | 166,000 | 1981 | 167,500 | 1980 | 168,500 | 1979 | 169,000 | 1978 | 170,000 | 1977 | 171,000 | 1976 | 172,000 | 1975 | 165,500 | 1974 | 162,500 | 1973 | 158,380 | 1972 | 156,000 | 1971 | 153,500 | 1970 | 151,000 | 1969 | 148,480 | 1968 | 146,780 | 1967 | 144,580 | 1966 | 142,380 | 1965 | 140,690 | 1964 | 138,980 | 1963 | 137,260 | 1962 | 135,560 | 1961 | 133,860 |
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