Year | Value | 2021 | 157,784 | 2020 | 79,620 | 2019 | 541,787.13686072 | 2018 | 508,978.939934 | 2017 | 333,899 | 2016 | 577,780 | 2015 | 657,927 | 2014 | 553,944 | 2013 | 652,452 | 2012 | 703,966.42107876 | 2011 | 438,178.47040732 | 2010 | 341,640.42916581 | 2003 | 52,268 | 2002 | 46,967 | 2001 | 95,188 | 2000 | 127,541 | 1999 | 132,200 | 1998 | 240,900 | 1997 | 244,500 | 1996 | 252,900 | 1995 | 266,900 | 1994 | 231,800 | 1993 | 230,800 | 1992 | 228,900 | 1991 | 228,900 | 1990 | 238,900 | 1989 | 233,800 | 1988 | 219,700 | 1987 | 220,100 | 1986 | 248,400 | 1985 | 248,500 | 1984 | 227,700 | 1983 | 216,900 | 1982 | 158,300 | 1981 | 154,100 | 1980 | 117,100 | 1979 | 113,300 | 1978 | 102,200 | 1977 | 85,400 | 1976 | 77,400 | 1975 | 69,000 | 1974 | 63,500 | 1973 | 58,600 | 1972 | 54,900 | 1971 | 58,600 | 1970 | 55,800 |
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