Year | Value | 2021 | 293,212.994 | 2020 | 449,041.025 | 2019 | 1,066,747.3561925 | 2018 | 1,125,367 | 2017 | 1,647,425 | 2016 | 1,917,924 | 2015 | 1,929,907 | 2014 | 2,209,428 | 2013 | 2,044,188 | 2012 | 1,737,962.1264066 | 2011 | 2,279,341.1795286 | 2010 | 1,999,127 | 2000 | 149,705 | 1999 | 140,200 | 1998 | 52,700 | 1997 | 89,600 | 1996 | 255,600 | 1995 | 250,400 | 1994 | 238,400 | 1993 | 197,000 | 1992 | 212,300 | 1991 | 212,300 | 1990 | 241,400 | 1989 | 220,000 | 1988 | 201,000 | 1987 | 217,900 | 1986 | 184,400 | 1985 | 225,500 | 1984 | 220,400 | 1983 | 200,200 | 1982 | 181,000 | 1981 | 129,100 | 1980 | 76,200 | 1979 | 93,000 | 1978 | 100,400 | 1977 | 111,200 | 1976 | 101,700 | 1975 | 99,000 | 1974 | 96,100 | 1973 | 96,600 | 1972 | 104,900 | 1971 | 97,400 | 1970 | 84,700 |
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