| Year | Value | | 2022 | 10,892,070 | | 2021 | 10,593,268 | | 2020 | 10,301,126 | | 2019 | 9,991,561 | | 2018 | 9,674,562 | | 2017 | 9,366,773 | | 2016 | 9,065,000 | | 2015 | 8,761,179 | | 2014 | 8,433,165 | | 2013 | 8,088,808 | | 2012 | 7,781,488 | | 2011 | 7,519,809 | | 2010 | 7,287,496 | | 2009 | 7,094,765 | | 2008 | 6,936,262 | | 2007 | 6,767,776 | | 2006 | 6,575,451 | | 2005 | 6,381,464 | | 2004 | 6,197,582 | | 2003 | 6,028,544 | | 2002 | 5,870,124 | | 2001 | 5,722,773 | | 2000 | 5,590,126 | | 1999 | 5,463,846 | | 1998 | 5,339,288 | | 1997 | 5,222,742 | | 1996 | 5,106,511 | | 1995 | 4,992,918 | | 1994 | 4,905,758 | | 1993 | 4,825,112 | | 1992 | 4,721,522 | | 1991 | 4,615,115 | | 1990 | 4,523,523 | | 1989 | 4,435,553 | | 1988 | 4,350,361 | | 1987 | 4,269,693 | | 1986 | 4,188,879 | | 1985 | 4,111,913 | | 1984 | 4,036,208 | | 1983 | 3,964,936 | | 1982 | 3,895,696 | | 1981 | 3,826,372 | | 1980 | 3,761,768 | | 1979 | 3,689,053 | | 1978 | 3,604,801 | | 1977 | 3,520,460 | | 1976 | 3,438,685 | | 1975 | 3,361,707 | | 1974 | 3,286,817 | | 1973 | 3,211,292 | | 1972 | 3,138,952 | | 1971 | 3,088,640 | | 1970 | 3,040,101 | | 1969 | 2,970,213 | | 1968 | 2,898,050 | | 1967 | 2,826,627 | | 1966 | 2,754,918 | | 1965 | 2,680,560 | | 1964 | 2,602,756 | | 1963 | 2,521,793 | | 1962 | 2,440,575 | | 1961 | 2,364,097 | | 1960 | 2,296,197 |
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