Year | Value | 2021 | 348,232 | 2020 | 425,057.604 | 2019 | 808,265 | 2018 | 959,307.381 | 2017 | 892,801 | 2016 | 823,735 | 2015 | 682,389 | 2014 | 675,005.89537866 | 2013 | 576,000 | 2012 | 641,182.30072336 | 2011 | 599,692.27609241 | 2010 | 520,932.08198318 | 2009 | 330,112 | 2008 | 345,240 | 2007 | 357,789 | 2006 | 357,414 | 2005 | 320,724 | 2004 | 318,488 | 2003 | 155,609 | 2002 | 152,278 | 2001 | 164,651 | 2000 | 159,027 | 1999 | 135,000 | 1998 | 196,700 | 1997 | 194,700 | 1996 | 311,200 | 1995 | 262,200 | 1994 | 230,500 | 1993 | 227,200 | 1992 | 236,900 | 1991 | 215,700 | 1990 | 205,400 | 1989 | 193,200 | 1988 | 206,100 | 1987 | 190,600 | 1986 | 181,500 | 1985 | 185,800 | 1984 | 183,000 | 1983 | 143,400 | 1982 | 145,300 | 1981 | 142,600 | 1980 | 124,800 | 1979 | 120,400 | 1978 | 115,300 | 1977 | 105,500 | 1976 | 91,600 | 1975 | 74,100 | 1974 | 64,800 | 1973 | 42,500 | 1972 | 34,200 | 1971 | 24,000 | 1970 | 23,500 |
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