| Year | Value | | 2021 | 1,418,032 | | 2020 | 929,888.181 | | 2019 | 5,446,163.2 | | 2018 | 8,851,291 | | 2017 | 5,450,671 | | 2016 | 4,048,658 | | 2015 | 3,378,028 | | 2014 | 5,009,995 | | 2013 | 5,186,676 | | 2012 | 3,594,882 | | 2011 | 4,902,816 | | 2010 | 5,145,187 | | 2009 | 5,048,360 | | 2008 | 4,974,879 | | 2007 | 4,869,586 | | 2006 | 4,921,600 | | 2005 | 4,706,226 | | 2004 | 4,219,478 | | 2003 | 3,391,474 | | 2002 | 2,808,793 | | 2001 | 2,565,808 | | 2000 | 2,229,216 | | 1999 | 1,852,600 | | 1998 | 1,600,800 | | 1997 | 1,447,800 | | 1996 | 1,393,600 | | 1995 | 1,284,600 | | 1994 | 1,071,600 | | 1993 | 1,024,900 | | 1992 | 973,800 | | 1991 | 837,400 | | 1990 | 1,095,700 | | 1989 | 1,168,800 | | 1988 | 1,153,800 | | 1987 | 1,069,600 | | 1986 | 991,000 | | 1985 | 980,300 | | 1984 | 910,700 | | 1983 | 908,400 | | 1982 | 852,600 | | 1981 | 955,000 | | 1980 | 1,460,800 | | 1979 | 1,758,600 | | 1978 | 1,680,300 | | 1977 | 1,538,100 | | 1976 | 1,656,800 | | 1975 | 1,621,000 | | 1974 | 1,514,700 | | 1973 | 1,367,000 | | 1972 | 1,364,400 | | 1971 | 1,092,500 | | 1970 | 1,171,900 |
|