Year | Value | 2022 | 16,887,786 | 2021 | 16,892,316 | 2020 | 16,885,268 | 2019 | 16,827,232 | 2018 | 16,697,200 | 2017 | 16,505,616 | 2016 | 16,251,244 | 2015 | 15,940,315 | 2014 | 15,590,428 | 2013 | 15,179,347 | 2012 | 14,726,799 | 2011 | 14,278,499 | 2010 | 13,799,125 | 2009 | 13,280,033 | 2008 | 12,793,366 | 2007 | 12,336,296 | 2006 | 11,899,505 | 2005 | 11,508,454 | 2004 | 11,157,641 | 2003 | 10,835,255 | 2002 | 10,563,781 | 2001 | 10,300,689 | 2000 | 10,011,252 | 1999 | 9,725,875 | 1998 | 9,444,980 | 1997 | 9,175,154 | 1996 | 8,914,385 | 1995 | 8,647,481 | 1994 | 8,380,295 | 1993 | 8,153,534 | 1992 | 7,921,931 | 1991 | 7,659,820 | 1990 | 7,376,157 | 1989 | 7,103,100 | 1988 | 6,881,393 | 1987 | 6,666,414 | 1986 | 6,432,062 | 1985 | 6,183,508 | 1984 | 5,942,108 | 1983 | 5,696,250 | 1982 | 5,447,733 | 1981 | 5,153,418 | 1980 | 4,857,793 | 1979 | 4,603,699 | 1978 | 4,367,090 | 1977 | 4,160,574 | 1976 | 3,973,350 | 1975 | 3,827,092 | 1974 | 3,728,263 | 1973 | 3,671,113 | 1972 | 3,646,174 | 1971 | 3,639,759 | 1970 | 3,634,714 | 1969 | 3,625,387 | 1968 | 3,611,204 | 1967 | 3,587,650 | 1966 | 3,555,315 | 1965 | 3,513,822 | 1964 | 3,460,764 | 1963 | 3,395,984 | 1962 | 3,324,907 | 1961 | 3,253,816 | 1960 | 3,189,840 |
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