| Year | Value | | 2021 | 1,065,149.134 | | 2020 | 1,272,798.762 | | 2019 | 1,856,546 | | 2018 | 1,830,394.8620746 | | 2017 | 921,470 | | 2016 | 937,476 | | 2015 | 900,028 | | 2014 | 991,463.32887981 | | 2013 | 576,996 | | 2012 | 1,048,391.0668218 | | 2011 | 1,056,129.5948594 | | 2010 | 967,914 | | 2009 | 979,042 | | 2008 | 1,088,876 | | 2007 | 1,089,636 | | 2006 | 1,033,407 | | 2005 | 1,020,000 | | 2004 | 900,000 | | 2003 | 1,601,347 | | 2002 | 1,543,274 | | 2001 | 1,625,689 | | 2000 | 1,860,623 | | 1999 | 1,719,400 | | 1998 | 701,000 | | 1997 | 703,700 | | 1996 | 977,500 | | 1995 | 936,900 | | 1994 | 862,000 | | 1993 | 862,000 | | 1992 | 835,000 | | 1991 | 1,090,000 | | 1990 | 1,090,000 | | 1989 | 1,150,000 | | 1988 | 1,066,000 | | 1987 | 995,000 | | 1986 | 958,200 | | 1985 | 860,500 | | 1984 | 705,900 | | 1983 | 699,000 | | 1982 | 724,000 | | 1981 | 740,000 | | 1980 | 345,000 | | 1979 | 314,000 | | 1978 | 268,000 | | 1977 | 252,000 | | 1976 | 245,000 | | 1975 | 232,000 |
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