Year | Value | 2021 | 206,208.068 | 2020 | 170,981.388 | 2019 | 361,156 | 2018 | 330,963.296 | 2017 | 342,097 | 2016 | 334,240 | 2015 | 309,089 | 2014 | 304,795 | 2013 | 312,910 | 2012 | 307,221 | 2011 | 293,885.83979772 | 2010 | 268,542.00576802 | 2009 | 291,713 | 2008 | 262,848 | 2007 | 259,827 | 2006 | 250,811 | 2005 | 241,084 | 2004 | 254,647 | 2003 | 248,246 | 2002 | 250,114 | 2001 | 222,539 | 2000 | 229,386 | 1999 | 224,400 | 1998 | 188,200 | 1997 | 185,700 | 1996 | 206,000 | 1995 | 203,100 | 1994 | 176,800 | 1993 | 189,800 | 1992 | 173,200 | 1991 | 130,500 | 1990 | 115,000 | 1989 | 122,200 | 1988 | 121,700 | 1987 | 118,100 | 1986 | 102,600 | 1985 | 98,700 | 1984 | 94,600 | 1983 | 96,000 | 1982 | 97,000 | 1981 | 91,700 | 1980 | 93,800 | 1979 | 93,100 | 1978 | 93,300 | 1977 | 89,100 | 1976 | 85,300 | 1975 | 85,100 | 1974 | 88,700 | 1973 | 87,500 | 1972 | 85,900 | 1971 | 84,800 | 1970 | 84,200 |
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