Year | Value | 2022 | 51,953,900 | 2021 | 50,712,781 | 2020 | 49,483,171 | 2019 | 48,298,007 | 2018 | 47,194,928 | 2017 | 46,137,760 | 2016 | 45,079,387 | 2015 | 44,057,406 | 2014 | 43,085,739 | 2013 | 42,106,231 | 2012 | 41,138,407 | 2011 | 40,178,494 | 2010 | 39,232,721 | 2009 | 38,304,446 | 2008 | 37,378,827 | 2007 | 36,510,415 | 2006 | 35,639,054 | 2005 | 34,692,964 | 2004 | 33,727,091 | 2003 | 32,758,035 | 2002 | 31,755,996 | 2001 | 30,783,993 | 2000 | 29,876,871 | 1999 | 28,988,857 | 1998 | 28,149,299 | 1997 | 27,433,727 | 1996 | 26,799,455 | 1995 | 26,152,616 | 1994 | 25,447,127 | 1993 | 24,716,170 | 1992 | 23,951,324 | 1991 | 23,186,646 | 1990 | 22,501,423 | 1989 | 21,846,740 | 1988 | 21,212,858 | 1987 | 20,627,213 | 1986 | 20,095,411 | 1985 | 19,613,491 | 1984 | 19,143,640 | 1983 | 18,678,699 | 1982 | 18,213,812 | 1981 | 17,764,225 | 1980 | 17,363,532 | 1979 | 16,915,622 | 1978 | 16,392,511 | 1977 | 15,884,938 | 1976 | 15,408,964 | 1975 | 14,925,477 | 1974 | 14,442,971 | 1973 | 13,995,391 | 1972 | 13,620,529 | 1971 | 13,318,093 | 1970 | 13,043,760 | 1969 | 12,779,240 | 1968 | 12,510,352 | 1967 | 12,207,788 | 1966 | 11,886,404 | 1965 | 11,577,141 | 1964 | 11,285,124 | 1963 | 11,023,902 | 1962 | 10,794,931 | 1961 | 10,579,761 | 1960 | 10,370,539 |
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