Year | Value | 2021 | 411,739 | 2020 | 327,742 | 2019 | 587,364 | 2018 | 540,124 | 2017 | 569,211 | 2016 | 632,965 | 2015 | 676,028 | 2014 | 739,636.74414715 | 2013 | 701,472 | 2012 | 559,608.7956682 | 2011 | 577,019.81446882 | 2010 | 558,192 | 2009 | 490,019 | 2008 | 461,125 | 2007 | 443,010 | 2006 | 350,314 | 2005 | 346,830 | 2004 | 293,873 | 2003 | 280,516 | 2002 | 281,513 | 2001 | 264,216 | 2000 | 259,568 | 1999 | 234,800 | 1998 | 200,700 | 1997 | 188,400 | 1996 | 163,400 | 1995 | 168,200 | 1994 | 220,700 | 1993 | 206,200 | 1992 | 224,700 | 1991 | 282,800 | 1990 | 279,500 | 1989 | 242,900 | 1988 | 235,000 | 1987 | 210,600 | 1986 | 226,400 | 1985 | 207,700 | 1984 | 325,200 | 1983 | 404,700 | 1982 | 391,100 | 1981 | 291,500 | 1980 | 282,200 | 1979 | 273,000 | 1978 | 266,400 | 1977 | 225,200 | 1976 | 248,900 | 1975 | 119,500 |
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