Year | Value | 2021 | 2,311,712 | 2020 | 7,884,373 | 2019 | 43,050,722 | 2018 | 40,401,515 | 2017 | 38,094,990 | 2016 | 35,370,328 | 2015 | 33,585,397 | 2014 | 33,643,518.416782 | 2013 | 31,729,241 | 2012 | 29,138,458.273748 | 2011 | 26,509,929.142491 | 2010 | 24,859,825.157784 | 2009 | 18,427,473 | 2008 | 21,050,204 | 2007 | 20,671,341 | 2006 | 19,565,884 | 2005 | 17,744,017 | 2004 | 16,995,621 | 2003 | 14,172,367 | 2002 | 17,256,872 | 2001 | 16,373,648 | 2000 | 16,704,341 | 1999 | 15,282,600 | 1998 | 13,331,100 | 1997 | 12,980,700 | 1996 | 11,840,700 | 1995 | 10,779,300 | 1994 | 9,929,400 | 1993 | 9,271,200 | 1992 | 8,477,300 | 1991 | 7,745,500 | 1990 | 7,046,400 | 1989 | 6,659,900 | 1988 | 6,046,900 | 1987 | 5,248,400 | 1986 | 4,990,300 | 1985 | 4,912,300 | 1984 | 4,791,800 | 1983 | 4,531,600 | 1982 | 4,591,500 | 1981 | 4,405,400 | 1980 | 3,826,900 | 1979 | 3,377,500 | 1978 | 2,893,200 | 1977 | 2,497,300 | 1976 | 2,132,100 | 1975 | 1,814,700 | 1974 | 1,508,500 | 1973 | 1,248,900 | 1972 | 976,100 | 1971 | 875,100 | 1970 | 748,900 |
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