Year | Value | 2021 | 597,724 | 2020 | 549,318.545 | 2019 | 2,382,607.8 | 2018 | 2,576,898 | 2017 | 1,575,125 | 2016 | 1,500,824 | 2015 | 1,583,046 | 2014 | 1,588,165 | 2013 | 1,603,404 | 2012 | 1,535,101 | 2011 | 1,673,765 | 2010 | 1,699,829 | 2009 | 1,992,900 | 2008 | 1,708,268 | 2007 | 1,674,773 | 2006 | 1,495,333 | 2005 | 1,371,865 | 2004 | 1,365,223 | 2003 | 1,309,119 | 2002 | 1,398,990 | 2001 | 1,340,031 | 2000 | 1,364,904 | 1999 | 1,421,300 | 1998 | 1,159,400 | 1997 | 1,054,300 | 1996 | 1,037,500 | 1995 | 1,065,900 | 1994 | 1,002,500 | 1993 | 797,000 | 1992 | 692,500 | 1991 | 648,600 | 1990 | 597,800 | 1989 | 506,500 | 1988 | 480,600 | 1987 | 429,400 | 1986 | 411,300 | 1985 | 384,100 | 1984 | 364,100 | 1983 | 366,300 | 1982 | 401,700 | 1981 | 397,900 | 1980 | 401,500 | 1979 | 382,000 | 1978 | 351,600 | 1977 | 255,300 | 1976 | 221,100 | 1975 | 205,200 | 1974 | 152,500 | 1973 | 140,600 | 1972 | 102,100 | 1971 | 110,800 | 1970 | 127,800 |
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