Year | Value | 2021 | 672,184 | 2020 | 320,806 | 2019 | 633,629 | 2018 | 566,295 | 2017 | 500,686 | 2016 | 475,185 | 2015 | 420,875 | 2014 | 426,344.03992044 | 2013 | 840,948 | 2012 | 745,781.74809138 | 2011 | 832,351.1563973 | 2010 | 663,013 | 2001 | 46,364 | 2000 | 77,273 | 1999 | 83,900 | 1998 | 90,500 | 1997 | 85,500 | 1996 | 75,100 | 1995 | 74,100 | 1994 | 69,200 | 1993 | 68,200 | 1992 | 66,300 | 1991 | 66,300 | 1990 | 76,300 | 1989 | 74,000 | 1988 | 69,700 | 1987 | 70,100 | 1986 | 78,400 | 1985 | 77,500 | 1984 | 71,700 | 1983 | 71,000 | 1982 | 69,800 | 1981 | 67,600 | 1980 | 64,600 | 1979 | 60,800 | 1978 | 55,700 | 1977 | 48,900 | 1976 | 43,600 | 1975 | 37,900 | 1974 | 33,800 | 1973 | 30,000 | 1972 | 27,700 | 1971 | 31,400 | 1970 | 29,900 |
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