Year | Value | 2022 | 13,185,638 | 2021 | 13,028,399 | 2020 | 12,908,217 | 2019 | 12,683,497 | 2018 | 12,527,511 | 2017 | 12,392,471 | 2016 | 12,265,882 | 2015 | 12,148,461 | 2014 | 12,046,033 | 2013 | 11,909,200 | 2012 | 11,725,754 | 2011 | 11,495,992 | 2010 | 11,261,719 | 2009 | 11,060,003 | 2008 | 10,921,224 | 2007 | 10,870,646 | 2006 | 10,960,214 | 2005 | 11,167,727 | 2004 | 11,388,676 | 2003 | 11,554,356 | 2002 | 11,656,421 | 2001 | 11,655,682 | 2000 | 11,623,183 | 1999 | 11,673,617 | 1998 | 11,837,816 | 1997 | 12,058,622 | 1996 | 12,295,343 | 1995 | 12,507,325 | 1994 | 12,608,765 | 1993 | 12,607,054 | 1992 | 12,542,940 | 1991 | 12,414,941 | 1990 | 12,236,155 | 1989 | 12,073,343 | 1988 | 11,905,216 | 1987 | 11,658,061 | 1986 | 11,548,752 | 1985 | 11,290,772 | 1984 | 10,731,935 | 1983 | 10,320,204 | 1982 | 10,104,346 | 1981 | 9,747,636 | 1980 | 9,356,979 | 1979 | 9,132,493 | 1978 | 8,878,028 | 1977 | 8,531,857 | 1976 | 8,015,381 | 1975 | 7,654,283 | 1974 | 7,482,969 | 1973 | 7,197,873 | 1972 | 6,849,940 | 1971 | 6,681,435 | 1970 | 6,543,798 | 1969 | 6,347,912 | 1968 | 6,313,813 | 1967 | 6,383,647 | 1966 | 6,444,573 | 1965 | 6,599,985 | 1964 | 6,919,687 | 1963 | 7,099,711 | 1962 | 7,135,841 | 1961 | 7,172,221 | 1960 | 7,059,622 |
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