Year | Value | 2021 | 140,696.05 | 2020 | 140,634 | 2019 | 141,273 | 2018 | 141,908 | 2017 | 142,229 | 2016 | 142,653 | 2015 | 144,676 | 2014 | 144,751 | 2013 | 143,467 | 2012 | 142,370 | 2011 | 145,260 | 2010 | 144,330 | 2009 | 148,140 | 2008 | 146,740 | 2007 | 145,500 | 2006 | 146,950 | 2005 | 148,320 | 2004 | 148,290 | 2003 | 149,270 | 2002 | 149,230 | 2001 | 149,620 | 2000 | 149,580 | 1999 | 149,540 | 1998 | 149,500 | 1997 | 149,450 | 1996 | 149,410 | 1995 | 149,380 | 1994 | 149,340 | 1993 | 149,300 | 1992 | 149,250 | 1991 | 149,210 | 1990 | 149,170 | 1989 | 148,220 | 1988 | 148,390 | 1987 | 148,580 | 1986 | 148,950 | 1985 | 149,330 | 1984 | 149,620 | 1983 | 149,920 | 1982 | 150,210 | 1981 | 150,530 | 1980 | 150,810 | 1979 | 151,210 | 1978 | 151,610 | 1977 | 152,010 | 1976 | 152,400 | 1975 | 152,810 | 1974 | 153,210 | 1973 | 153,600 | 1972 | 154,000 | 1971 | 154,410 | 1970 | 154,810 | 1969 | 156,480 | 1968 | 157,220 | 1967 | 158,420 | 1966 | 159,150 | 1965 | 159,730 | 1964 | 160,840 | 1963 | 161,410 | 1962 | 162,490 | 1961 | 163,540 |
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