Year | Value | 2022 | 62,186,631 | 2021 | 62,021,907 | 2020 | 63,375,472 | 2019 | 64,606,886 | 2018 | 64,817,890 | 2017 | 63,745,137 | 2016 | 62,158,426 | 2015 | 60,279,138 | 2014 | 57,884,183 | 2013 | 55,210,079 | 2012 | 52,260,173 | 2011 | 49,340,155 | 2010 | 46,488,999 | 2009 | 43,624,151 | 2008 | 41,129,005 | 2007 | 39,031,833 | 2006 | 37,611,558 | 2005 | 36,942,129 | 2004 | 36,756,328 | 2003 | 36,891,224 | 2002 | 37,156,584 | 2001 | 37,079,304 | 2000 | 36,647,166 | 1999 | 36,073,037 | 1998 | 35,346,057 | 1997 | 34,437,846 | 1996 | 33,478,063 | 1995 | 32,692,929 | 1994 | 32,084,294 | 1993 | 31,499,256 | 1992 | 30,899,243 | 1991 | 30,216,313 | 1990 | 29,392,297 | 1989 | 28,488,593 | 1988 | 27,433,636 | 1987 | 26,218,504 | 1986 | 25,110,474 | 1985 | 24,104,656 | 1984 | 23,079,093 | 1983 | 22,149,569 | 1982 | 21,403,778 | 1981 | 20,769,075 | 1980 | 20,265,888 | 1979 | 19,990,504 | 1978 | 19,846,783 | 1977 | 19,688,972 | 1976 | 19,494,844 | 1975 | 19,211,192 | 1974 | 18,793,996 | 1973 | 18,276,028 | 1972 | 17,786,577 | 1971 | 17,370,555 | 1970 | 16,979,170 | 1969 | 16,572,378 | 1968 | 16,197,411 | 1967 | 15,856,862 | 1966 | 15,464,053 | 1965 | 15,031,524 | 1964 | 14,575,195 | 1963 | 14,101,103 | 1962 | 13,663,871 | 1961 | 13,375,684 | 1960 | 13,293,112 |
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