Year | Value | 2021 | 1,146,973 | 2020 | 823,670 | 2019 | 1,498,093 | 2018 | 1,698,386 | 2017 | 1,221,678 | 2016 | 1,179,664 | 2015 | 1,312,807 | 2014 | 1,124,913.454 | 2013 | 1,173,942.818 | 2012 | 1,030,203.5752038 | 2011 | 914,932.03761187 | 2010 | 750,421 | 2009 | 683,541 | 2008 | 202,704 | 2007 | 250,849 | 2006 | 189,844 | 2005 | 257,223 | 2004 | 243,087 | 2003 | 149,540 | 2002 | 134,470 | 2001 | 174,559 | 2000 | 193,069 | 1999 | 190,000 | 1998 | 220,200 | 1997 | 217,800 | 1996 | 224,000 | 1995 | 236,400 | 1994 | 199,200 | 1993 | 188,500 | 1992 | 216,400 | 1991 | 289,700 | 1990 | 292,100 | 1989 | 266,800 | 1988 | 410,300 | 1987 | 456,100 | 1986 | 441,100 | 1985 | 450,900 | 1984 | 498,500 | 1983 | 407,100 | 1982 | 401,700 | 1981 | 324,800 | 1980 | 387,600 | 1979 | 292,300 | 1978 | 192,200 | 1977 | 85,700 | 1976 | 310,300 | 1975 | 271,700 | 1974 | 282,900 | 1973 | 256,800 | 1972 | 196,900 | 1971 | 188,000 | 1970 | 171,400 |
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