| Year | Value | | 2022 | 4,759,949 | | 2021 | 4,703,971 | | 2020 | 4,650,765 | | 2019 | 4,597,843 | | 2018 | 4,549,561 | | 2017 | 4,503,652 | | 2016 | 4,449,348 | | 2015 | 4,383,546 | | 2014 | 4,314,278 | | 2013 | 4,252,029 | | 2012 | 4,189,955 | | 2011 | 4,137,130 | | 2010 | 4,100,484 | | 2009 | 4,066,098 | | 2008 | 4,030,448 | | 2007 | 3,994,341 | | 2006 | 3,952,694 | | 2005 | 3,901,917 | | 2004 | 3,839,766 | | 2003 | 3,765,851 | | 2002 | 3,683,588 | | 2001 | 3,595,982 | | 2000 | 3,510,368 | | 1999 | 3,435,377 | | 1998 | 3,361,222 | | 1997 | 3,278,702 | | 1996 | 3,192,092 | | 1995 | 3,100,730 | | 1994 | 3,004,334 | | 1993 | 2,904,698 | | 1992 | 2,804,220 | | 1991 | 2,706,227 | | 1990 | 2,618,622 | | 1989 | 2,549,742 | | 1988 | 2,487,533 | | 1987 | 2,420,465 | | 1986 | 2,351,048 | | 1985 | 2,277,279 | | 1984 | 2,195,150 | | 1983 | 2,107,427 | | 1982 | 2,021,300 | | 1981 | 1,940,948 | | 1980 | 1,873,073 | | 1979 | 1,821,549 | | 1978 | 1,776,042 | | 1977 | 1,729,124 | | 1976 | 1,685,738 | | 1975 | 1,643,301 | | 1974 | 1,597,487 | | 1973 | 1,548,123 | | 1972 | 1,492,470 | | 1971 | 1,430,682 | | 1970 | 1,376,040 | | 1969 | 1,329,798 | | 1968 | 1,285,023 | | 1967 | 1,244,880 | | 1966 | 1,207,694 | | 1965 | 1,173,725 | | 1964 | 1,146,557 | | 1963 | 1,124,651 | | 1962 | 1,104,363 | | 1961 | 1,084,766 | | 1960 | 1,067,071 |
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