Year | Value | 2021 | 139,133.76 | 2020 | 139,133.76 | 2019 | 139,113.34 | 2018 | 139,176.88 | 2017 | 139,200.31 | 2016 | 139,161.26 | 2015 | 139,170 | 2014 | 139,190 | 2013 | 139,210 | 2012 | 139,210 | 2011 | 139,150 | 2010 | 139,080 | 2009 | 139,080 | 2008 | 138,980 | 2007 | 138,970 | 2006 | 138,770 | 2005 | 138,280 | 2004 | 139,050 | 2003 | 138,130 | 2002 | 137,590 | 2001 | 137,230 | 2000 | 137,110 | 1999 | 137,670 | 1998 | 137,540 | 1997 | 138,040 | 1996 | 137,900 | 1995 | 137,890 | 1994 | 137,860 | 1993 | 136,420 | 1992 | 136,130 | 1991 | 135,120 | 1990 | 134,950 | 1989 | 134,920 | 1988 | 137,330 | 1987 | 139,070 | 1986 | 139,200 | 1985 | 139,510 | 1984 | 139,730 | 1983 | 139,910 | 1982 | 141,130 | 1981 | 141,150 | 1980 | 140,620 | 1979 | 139,600 | 1978 | 140,090 | 1977 | 140,400 | 1976 | 142,130 | 1975 | 141,070 | 1974 | 145,170 | 1973 | 144,780 | 1972 | 141,610 | 1971 | 134,580 | 1970 | 134,590 | 1969 | 134,450 | 1968 | 134,210 | 1967 | 136,300 | 1966 | 136,300 | 1965 | 142,990 | 1964 | 148,540 | 1963 | 150,410 | 1962 | 149,700 | 1961 | 149,410 |
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