Year | Value | 2022 | 22,794,694 | 2021 | 22,418,433 | 2020 | 22,021,040 | 2019 | 21,602,448 | 2018 | 21,183,936 | 2017 | 20,778,465 | 2016 | 20,386,022 | 2015 | 20,011,905 | 2014 | 19,654,387 | 2013 | 19,303,339 | 2012 | 18,967,891 | 2011 | 18,663,631 | 2010 | 18,393,407 | 2009 | 18,165,724 | 2008 | 17,941,277 | 2007 | 17,699,567 | 2006 | 17,423,479 | 2005 | 17,105,244 | 2004 | 16,742,423 | 2003 | 16,345,625 | 2002 | 15,926,127 | 2001 | 15,488,711 | 2000 | 15,037,063 | 1999 | 14,573,898 | 1998 | 14,108,018 | 1997 | 13,648,621 | 1996 | 13,203,039 | 1995 | 12,774,642 | 1994 | 12,355,119 | 1993 | 11,923,629 | 1992 | 11,476,000 | 1991 | 11,022,249 | 1990 | 10,564,071 | 1989 | 10,121,100 | 1988 | 9,726,391 | 1987 | 9,387,030 | 1986 | 9,093,440 | 1985 | 8,839,052 | 1984 | 8,612,960 | 1983 | 8,404,159 | 1982 | 8,206,027 | 1981 | 8,017,362 | 1980 | 7,831,352 | 1979 | 7,644,155 | 1978 | 7,469,835 | 1977 | 7,317,873 | 1976 | 7,182,547 | 1975 | 7,058,526 | 1974 | 6,941,892 | 1973 | 6,824,847 | 1972 | 6,700,389 | 1971 | 6,563,523 | 1970 | 6,414,134 | 1969 | 6,252,236 | 1968 | 6,076,006 | 1967 | 5,888,494 | 1966 | 5,696,088 | 1965 | 5,502,451 | 1964 | 5,308,654 | 1963 | 5,118,643 | 1962 | 4,941,497 | 1961 | 4,786,399 | 1960 | 4,658,891 |
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