Year | Value | 2021 | 380,154.114 | 2020 | 282,665.37 | 2019 | 637,401 | 2018 | 636,327.75353017 | 2017 | 624,693.468 | 2016 | 556,552 | 2015 | 510,478 | 2014 | 571,311.14161639 | 2013 | 556,102.5 | 2012 | 511,465.28530907 | 2011 | 530,059.43390233 | 2010 | 556,612.17722236 | 2009 | 419,054 | 2008 | 382,907 | 2007 | 412,178 | 2006 | 391,697 | 2005 | 360,734 | 2004 | 333,384 | 2003 | 340,925 | 2002 | 297,723 | 2001 | 356,337 | 2000 | 296,322 | 1999 | 271,700 | 1998 | 271,000 | 1997 | 277,600 | 1996 | 249,200 | 1995 | 229,500 | 1994 | 233,400 | 1993 | 224,500 | 1992 | 218,800 | 1991 | 211,300 | 1990 | 223,400 | 1989 | 225,700 | 1988 | 220,900 | 1987 | 208,800 | 1986 | 211,900 | 1985 | 199,700 | 1984 | 210,200 | 1983 | 213,000 | 1982 | 187,400 | 1981 | 184,200 | 1980 | 185,000 | 1979 | 189,400 | 1978 | 203,000 | 1977 | 197,100 | 1976 | 191,100 | 1975 | 165,800 | 1974 | 154,700 | 1973 | 139,000 | 1972 | 121,700 | 1971 | 112,300 | 1970 | 105,400 |
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