| Year | Value | | 2022 | 11,487,083 | | 2021 | 11,138,689 | | 2020 | 10,799,844 | | 2019 | 10,454,978 | | 2018 | 10,115,564 | | 2017 | 9,796,909 | | 2016 | 9,495,956 | | 2015 | 9,201,166 | | 2014 | 8,889,660 | | 2013 | 8,575,081 | | 2012 | 8,293,283 | | 2011 | 8,039,079 | | 2010 | 7,800,338 | | 2009 | 7,591,763 | | 2008 | 7,400,637 | | 2007 | 7,193,486 | | 2006 | 6,981,163 | | 2005 | 6,778,853 | | 2004 | 6,590,428 | | 2003 | 6,421,111 | | 2002 | 6,265,511 | | 2001 | 6,114,959 | | 2000 | 5,969,760 | | 1999 | 5,834,059 | | 1998 | 5,708,054 | | 1997 | 5,593,218 | | 1996 | 5,476,403 | | 1995 | 5,359,799 | | 1994 | 5,269,369 | | 1993 | 5,185,759 | | 1992 | 5,080,712 | | 1991 | 4,973,792 | | 1990 | 4,871,024 | | 1989 | 4,760,086 | | 1988 | 4,645,877 | | 1987 | 4,527,158 | | 1986 | 4,406,120 | | 1985 | 4,281,517 | | 1984 | 4,158,738 | | 1983 | 4,052,191 | | 1982 | 3,951,244 | | 1981 | 3,847,582 | | 1980 | 3,760,740 | | 1979 | 3,675,062 | | 1978 | 3,572,466 | | 1977 | 3,475,507 | | 1976 | 3,386,070 | | 1975 | 3,298,941 | | 1974 | 3,215,802 | | 1973 | 3,136,281 | | 1972 | 3,060,335 | | 1971 | 2,986,613 | | 1970 | 2,913,609 | | 1969 | 2,842,695 | | 1968 | 2,774,183 | | 1967 | 2,708,759 | | 1966 | 2,646,954 | | 1965 | 2,587,373 | | 1964 | 2,529,717 | | 1963 | 2,475,304 | | 1962 | 2,423,986 | | 1961 | 2,374,055 | | 1960 | 2,325,123 |
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