Year | Value | 2021 | 273,874 | 2020 | 139,029.18 | 2019 | 371,985 | 2018 | 358,874 | 2017 | 355,039 | 2016 | 366,188 | 2015 | 368,947 | 2014 | 349,864.363 | 2013 | 304,365.908 | 2012 | 254,059.92899685 | 2011 | 237,570.82904785 | 2010 | 226,094 | 2009 | 196,298 | 2008 | 187,382 | 2007 | 185,872 | 2006 | 175,006 | 2005 | 162,095 | 2004 | 153,204 | 2003 | 171,933 | 2002 | 179,994 | 2001 | 190,465 | 2000 | 199,370 | 1999 | 208,600 | 1998 | 234,700 | 1997 | 224,800 | 1996 | 195,200 | 1995 | 193,700 | 1994 | 181,500 | 1993 | 167,200 | 1992 | 147,100 | 1991 | 124,500 | 1990 | 116,900 | 1989 | 127,000 | 1988 | 118,600 | 1987 | 118,200 | 1986 | 123,900 | 1985 | 124,100 | 1984 | 133,300 | 1983 | 158,800 | 1982 | 157,900 | 1981 | 69,400 | 1980 | 65,500 | 1979 | 70,100 | 1978 | 69,300 | 1977 | 63,500 | 1976 | 69,200 | 1975 | 70,300 | 1974 | 75,700 | 1973 | 103,300 | 1972 | 115,400 | 1971 | 125,200 | 1970 | 145,800 |
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