Year | Value | 2021 | 161,093 | 2020 | 121,668 | 2019 | 330,226 | 2018 | 130,260 | 2017 | 156,761 | 2016 | 149,030 | 2015 | 152,056 | 2014 | 162,576 | 2013 | 166,251 | 2012 | 162,715.73598113 | 2011 | 166,729.99728709 | 2010 | 176,195 | 2009 | 138,942 | 2008 | 150,738 | 2007 | 151,070 | 2006 | 149,512 | 2005 | 141,968 | 2004 | 137,049 | 2003 | 128,449 | 2002 | 135,516 | 2001 | 133,561 | 2000 | 138,700 | 1999 | 127,200 | 1998 | 127,900 | 1997 | 121,300 | 1996 | 118,100 | 1995 | 109,000 | 1994 | 87,700 | 1993 | 73,000 | 1992 | 63,600 | 1991 | 47,400 | 1990 | 42,000 | 1989 | 39,900 | 1988 | 40,100 | 1987 | 38,700 | 1986 | 37,700 | 1985 | 37,800 | 1984 | 38,000 | 1983 | 37,700 | 1982 | 36,400 | 1981 | 27,800 | 1980 | 27,200 | 1979 | 26,100 | 1978 | 25,800 | 1977 | 24,000 | 1976 | 23,100 | 1975 | 21,000 | 1974 | 20,000 | 1973 | 20,900 | 1972 | 18,400 | 1971 | 16,500 | 1970 | 14,900 |
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