| Year | Value | | 2022 | 4,519,547 | | 2021 | 4,478,614 | | 2020 | 4,439,117 | | 2019 | 4,391,743 | | 2018 | 4,336,157 | | 2017 | 4,277,053 | | 2016 | 4,214,424 | | 2015 | 4,146,201 | | 2014 | 4,068,962 | | 2013 | 3,980,129 | | 2012 | 3,881,750 | | 2011 | 3,780,922 | | 2010 | 3,685,329 | | 2009 | 3,599,308 | | 2008 | 3,518,564 | | 2007 | 3,436,763 | | 2006 | 3,353,840 | | 2005 | 3,267,543 | | 2004 | 3,176,606 | | 2003 | 3,083,488 | | 2002 | 2,987,902 | | 2001 | 2,889,320 | | 2000 | 2,786,347 | | 1999 | 2,677,087 | | 1998 | 2,568,716 | | 1997 | 2,467,283 | | 1996 | 2,371,713 | | 1995 | 2,280,988 | | 1994 | 2,190,407 | | 1993 | 2,098,588 | | 1992 | 2,008,938 | | 1991 | 1,921,603 | | 1990 | 1,836,157 | | 1989 | 1,759,404 | | 1988 | 1,695,576 | | 1987 | 1,641,714 | | 1986 | 1,597,355 | | 1985 | 1,561,162 | | 1984 | 1,531,137 | | 1983 | 1,503,775 | | 1982 | 1,476,611 | | 1981 | 1,447,582 | | 1980 | 1,409,315 | | 1979 | 1,358,026 | | 1978 | 1,304,139 | | 1977 | 1,256,799 | | 1976 | 1,214,262 | | 1975 | 1,176,491 | | 1974 | 1,144,444 | | 1973 | 1,115,188 | | 1972 | 1,086,611 | | 1971 | 1,057,495 | | 1970 | 1,028,441 | | 1969 | 999,360 | | 1968 | 968,530 | | 1967 | 935,647 | | 1966 | 900,924 | | 1965 | 864,088 | | 1964 | 825,451 | | 1963 | 786,781 | | 1962 | 750,640 | | 1961 | 719,837 | | 1960 | 696,572 |
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