Year | Value | 2021 | 10,302,876 | 2020 | 8,019,753 | 2019 | 21,197,759 | 2018 | 19,517,185 | 2017 | 17,664,974 | 2016 | 16,362,437 | 2015 | 15,006,762 | 2014 | 14,347,893 | 2013 | 13,806,283 | 2012 | 12,892,856 | 2011 | 10,949,863 | 2010 | 9,269,026 | 2009 | 8,097,314 | 2008 | 8,021,939 | 2007 | 7,190,963 | 2006 | 6,016,649 | 2005 | 5,939,020 | 2004 | 5,463,753 | 2003 | 5,246,787 | 2002 | 4,986,727 | 2001 | 5,315,623 | 2000 | 5,174,876 | 1999 | 5,187,700 | 1998 | 5,149,800 | 1997 | 4,610,000 | 1996 | 3,621,900 | 1995 | 3,197,200 | 1994 | 2,961,700 | 1993 | 2,360,000 | 1992 | 1,905,800 | 1991 | 1,405,900 | 1990 | 1,363,600 | 1989 | 1,263,800 | 1988 | 1,144,100 | 1987 | 992,400 | 1986 | 875,200 | 1985 | 825,200 | 1984 | 730,800 | 1983 | 651,900 | 1982 | 822,400 | 1981 | 885,700 | 1980 | 668,800 | 1979 | 558,900 | 1978 | 552,700 | 1977 | 589,400 | 1976 | 489,900 | 1975 | 509,700 | 1974 | 505,200 | 1973 | 636,200 | 1972 | 730,000 | 1971 | 690,600 | 1970 | 574,700 |
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