Year | Value | 2022 | 14,586,699 | 2021 | 14,532,270 | 2020 | 14,323,219 | 2019 | 14,136,324 | 2018 | 13,952,171 | 2017 | 13,789,557 | 2016 | 13,621,918 | 2015 | 13,425,469 | 2014 | 13,207,500 | 2013 | 13,028,949 | 2012 | 12,855,733 | 2011 | 12,682,238 | 2010 | 12,596,138 | 2009 | 12,637,630 | 2008 | 12,795,614 | 2007 | 13,055,908 | 2006 | 13,431,158 | 2005 | 13,822,041 | 2004 | 14,138,811 | 2003 | 14,284,938 | 2002 | 14,286,472 | 2001 | 14,177,339 | 2000 | 13,965,994 | 1999 | 13,767,360 | 1998 | 13,603,971 | 1997 | 13,380,690 | 1996 | 13,131,292 | 1995 | 12,886,653 | 1994 | 12,668,355 | 1993 | 12,364,931 | 1992 | 11,953,031 | 1991 | 11,464,982 | 1990 | 10,666,165 | 1989 | 9,552,714 | 1988 | 8,474,315 | 1987 | 7,741,274 | 1986 | 7,566,633 | 1985 | 8,054,280 | 1984 | 9,057,684 | 1983 | 10,319,131 | 1982 | 11,508,135 | 1981 | 12,130,188 | 1980 | 12,163,284 | 1979 | 11,755,302 | 1978 | 11,014,823 | 1977 | 10,316,588 | 1976 | 9,858,555 | 1975 | 9,790,887 | 1974 | 10,129,031 | 1973 | 10,696,712 | 1972 | 11,180,526 | 1971 | 11,486,514 | 1970 | 11,600,356 | 1969 | 11,470,837 | 1968 | 11,118,662 | 1967 | 10,582,594 | 1966 | 9,900,872 | 1965 | 9,139,628 | 1964 | 8,392,484 | 1963 | 7,812,004 | 1962 | 7,295,564 | 1961 | 6,883,872 | 1960 | 6,791,956 |
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