| Year | Value | | 2022 | 6,614,208 | | 2021 | 6,364,839 | | 2020 | 6,121,168 | | 2019 | 5,882,329 | | 2018 | 5,649,376 | | 2017 | 5,423,582 | | 2016 | 5,205,425 | | 2015 | 4,995,735 | | 2014 | 4,794,300 | | 2013 | 4,602,023 | | 2012 | 4,418,712 | | 2011 | 4,241,480 | | 2010 | 4,070,440 | | 2009 | 3,905,656 | | 2008 | 3,746,862 | | 2007 | 3,593,837 | | 2006 | 3,449,196 | | 2005 | 3,304,019 | | 2004 | 3,160,900 | | 2003 | 3,028,144 | | 2002 | 2,901,071 | | 2001 | 2,787,454 | | 2000 | 2,682,552 | | 1999 | 2,580,682 | | 1998 | 2,482,171 | | 1997 | 2,387,790 | | 1996 | 2,299,833 | | 1995 | 2,222,577 | | 1994 | 2,158,899 | | 1993 | 2,061,986 | | 1992 | 1,955,358 | | 1991 | 1,865,640 | | 1990 | 1,770,260 | | 1989 | 1,679,646 | | 1988 | 1,593,711 | | 1987 | 1,511,946 | | 1986 | 1,434,459 | | 1985 | 1,361,045 | | 1984 | 1,291,613 | | 1983 | 1,225,761 | | 1982 | 1,163,284 | | 1981 | 1,104,033 | | 1980 | 1,048,161 | | 1979 | 995,653 | | 1978 | 929,308 | | 1977 | 861,540 | | 1976 | 798,609 | | 1975 | 740,071 | | 1974 | 685,840 | | 1973 | 635,439 | | 1972 | 588,607 | | 1971 | 545,007 | | 1970 | 504,643 | | 1969 | 467,154 | | 1968 | 432,369 | | 1967 | 400,086 | | 1966 | 370,192 | | 1965 | 342,500 | | 1964 | 316,930 | | 1963 | 293,302 | | 1962 | 271,519 | | 1961 | 251,448 | | 1960 | 233,014 |
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