| Year | Value | | 2022 | 13,293,383 | | 2021 | 12,809,135 | | 2020 | 12,342,370 | | 2019 | 11,889,761 | | 2018 | 11,448,927 | | 2017 | 11,021,796 | | 2016 | 10,606,660 | | 2015 | 10,203,110 | | 2014 | 9,818,188 | | 2013 | 9,451,592 | | 2012 | 9,094,942 | | 2011 | 8,752,209 | | 2010 | 8,427,645 | | 2009 | 8,116,165 | | 2008 | 7,818,388 | | 2007 | 7,533,650 | | 2006 | 7,261,337 | | 2005 | 7,000,404 | | 2004 | 6,750,283 | | 2003 | 6,510,942 | | 2002 | 6,282,467 | | 2001 | 6,064,010 | | 2000 | 5,854,008 | | 1999 | 5,653,148 | | 1998 | 5,459,930 | | 1997 | 5,274,708 | | 1996 | 5,097,742 | | 1995 | 4,925,075 | | 1994 | 4,760,553 | | 1993 | 4,606,508 | | 1992 | 4,459,780 | | 1991 | 4,319,112 | | 1990 | 4,182,727 | | 1989 | 4,050,884 | | 1988 | 3,924,368 | | 1987 | 3,801,992 | | 1986 | 3,683,306 | | 1985 | 3,568,331 | | 1984 | 3,456,927 | | 1983 | 3,348,983 | | 1982 | 3,243,825 | | 1981 | 3,140,836 | | 1980 | 3,040,671 | | 1979 | 2,944,506 | | 1978 | 2,853,297 | | 1977 | 2,767,904 | | 1976 | 2,687,544 | | 1975 | 2,610,894 | | 1974 | 2,537,329 | | 1973 | 2,466,265 | | 1972 | 2,397,004 | | 1971 | 2,329,498 | | 1970 | 2,263,043 | | 1969 | 2,197,065 | | 1968 | 2,132,008 | | 1967 | 2,067,624 | | 1966 | 2,004,197 | | 1965 | 1,942,200 | | 1964 | 1,881,448 | | 1963 | 1,821,852 | | 1962 | 1,763,599 | | 1961 | 1,706,918 | | 1960 | 1,651,968 |
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