Year | Value | 2021 | 54,218 | 2020 | 27,447 | 2019 | 163,106 | 2018 | 161,862 | 2017 | 146,631 | 2016 | 149,334 | 2015 | 145,585 | 2014 | 134,521 | 2013 | 145,136.02072473 | 2012 | 101,716.26891345 | 2011 | 90,214.520533881 | 2010 | 92,847.506540262 | 2009 | 74,546 | 2008 | 74,649 | 2007 | 79,465 | 2006 | 74,162 | 2005 | 81,298 | 2004 | 90,518 | 2003 | 91,657 | 2002 | 113,178 | 2001 | 124,493 | 2000 | 168,815 | 1999 | 183,600 | 1998 | 144,600 | 1997 | 171,600 | 1996 | 131,400 | 1995 | 112,400 | 1994 | 99,500 | 1993 | 83,300 | 1992 | 86,300 | 1991 | 78,500 | 1990 | 114,000 | 1989 | 101,600 | 1988 | 106,200 | 1987 | 111,800 | 1986 | 102,300 | 1985 | 100,500 | 1984 | 101,400 | 1983 | 109,100 | 1982 | 103,900 | 1981 | 113,800 | 1980 | 114,400 | 1979 | 103,700 | 1978 | 96,500 | 1977 | 93,600 | 1976 | 90,000 | 1975 | 89,800 | 1974 | 79,000 | 1973 | 71,100 | 1972 | 79,000 | 1971 | 75,600 | 1970 | 71,700 |
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