Year | Value | 2022 | 54,865,512 | 2021 | 54,001,891 | 2020 | 53,107,732 | 2019 | 52,189,268 | 2018 | 51,250,007 | 2017 | 50,273,865 | 2016 | 49,274,300 | 2015 | 48,251,205 | 2014 | 47,193,391 | 2013 | 46,092,575 | 2012 | 45,030,881 | 2011 | 44,030,939 | 2010 | 43,076,670 | 2009 | 42,205,138 | 2008 | 41,378,685 | 2007 | 40,568,130 | 2006 | 39,776,795 | 2005 | 39,003,462 | 2004 | 38,236,048 | 2003 | 37,471,228 | 2002 | 36,706,908 | 2001 | 35,958,115 | 2000 | 35,234,075 | 1999 | 34,522,238 | 1998 | 33,814,145 | 1997 | 33,110,772 | 1996 | 32,418,308 | 1995 | 31,738,802 | 1994 | 31,063,203 | 1993 | 30,388,568 | 1992 | 29,713,371 | 1991 | 29,042,440 | 1990 | 28,364,070 | 1989 | 27,664,151 | 1988 | 26,953,624 | 1987 | 26,245,281 | 1986 | 25,553,936 | 1985 | 24,876,309 | 1984 | 24,214,805 | 1983 | 23,571,405 | 1982 | 22,953,724 | 1981 | 22,370,151 | 1980 | 21,803,307 | 1979 | 21,249,783 | 1978 | 20,721,827 | 1977 | 20,220,150 | 1976 | 19,748,466 | 1975 | 19,300,457 | 1974 | 18,867,705 | 1973 | 18,451,546 | 1972 | 18,045,443 | 1971 | 17,647,916 | 1970 | 17,252,780 | 1969 | 16,854,829 | 1968 | 16,456,719 | 1967 | 16,057,978 | 1966 | 15,660,871 | 1965 | 15,267,075 | 1964 | 14,876,442 | 1963 | 14,491,258 | 1962 | 14,115,797 | 1961 | 13,751,636 | 1960 | 13,397,931 |
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