| Year | Value | | 2022 | 7,992,222 | | 2021 | 7,760,092 | | 2020 | 7,521,047 | | 2019 | 7,235,303 | | 2018 | 6,919,257 | | 2017 | 6,637,564 | | 2016 | 6,401,423 | | 2015 | 6,193,517 | | 2014 | 6,024,873 | | 2013 | 5,888,587 | | 2012 | 5,737,654 | | 2011 | 5,563,733 | | 2010 | 5,392,465 | | 2009 | 5,230,944 | | 2008 | 5,084,677 | | 2007 | 4,955,642 | | 2006 | 4,833,735 | | 2005 | 4,712,433 | | 2004 | 4,596,434 | | 2003 | 4,485,124 | | 2002 | 4,372,412 | | 2001 | 4,264,087 | | 2000 | 4,164,608 | | 1999 | 4,064,765 | | 1998 | 3,965,941 | | 1997 | 3,876,067 | | 1996 | 3,792,331 | | 1995 | 3,713,565 | | 1994 | 3,645,862 | | 1993 | 3,577,767 | | 1992 | 3,499,116 | | 1991 | 3,422,882 | | 1990 | 3,355,372 | | 1989 | 3,291,285 | | 1988 | 3,230,846 | | 1987 | 3,171,713 | | 1986 | 3,109,671 | | 1985 | 3,047,623 | | 1984 | 2,983,867 | | 1983 | 2,920,339 | | 1982 | 2,856,131 | | 1981 | 2,793,454 | | 1980 | 2,736,536 | | 1979 | 2,676,395 | | 1978 | 2,610,125 | | 1977 | 2,545,325 | | 1976 | 2,482,833 | | 1975 | 2,423,359 | | 1974 | 2,364,764 | | 1973 | 2,303,724 | | 1972 | 2,243,322 | | 1971 | 2,200,722 | | 1970 | 2,156,892 | | 1969 | 2,091,890 | | 1968 | 2,022,589 | | 1967 | 1,952,729 | | 1966 | 1,887,415 | | 1965 | 1,829,128 | | 1964 | 1,776,526 | | 1963 | 1,729,342 | | 1962 | 1,686,940 | | 1961 | 1,645,593 | | 1960 | 1,603,217 |
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