| Year | Value | | 2022 | 10,130,087 | | 2021 | 10,206,443 | | 2020 | 10,251,440 | | 2019 | 10,235,475 | | 2018 | 10,167,770 | | 2017 | 10,069,876 | | 2016 | 9,957,016 | | 2015 | 9,841,117 | | 2014 | 9,715,207 | | 2013 | 9,589,020 | | 2012 | 9,469,497 | | 2011 | 9,348,401 | | 2010 | 9,224,005 | | 2009 | 9,100,416 | | 2008 | 8,969,347 | | 2007 | 8,830,613 | | 2006 | 8,690,943 | | 2005 | 8,538,529 | | 2004 | 8,371,691 | | 2003 | 8,191,605 | | 2002 | 7,995,566 | | 2001 | 7,784,937 | | 2000 | 7,565,419 | | 1999 | 7,337,710 | | 1998 | 7,099,355 | | 1997 | 6,851,781 | | 1996 | 6,596,194 | | 1995 | 6,334,992 | | 1994 | 6,074,281 | | 1993 | 5,816,942 | | 1992 | 5,561,028 | | 1991 | 5,307,944 | | 1990 | 5,060,132 | | 1989 | 4,832,242 | | 1988 | 4,643,134 | | 1987 | 4,499,661 | | 1986 | 4,406,985 | | 1985 | 4,357,977 | | 1984 | 4,329,355 | | 1983 | 4,305,099 | | 1982 | 4,280,161 | | 1981 | 4,248,136 | | 1980 | 4,212,260 | | 1979 | 4,177,898 | | 1978 | 4,139,376 | | 1977 | 4,093,651 | | 1976 | 4,038,829 | | 1975 | 3,973,522 | | 1974 | 3,897,237 | | 1973 | 3,811,249 | | 1972 | 3,717,801 | | 1971 | 3,619,413 | | 1970 | 3,518,636 | | 1969 | 3,417,069 | | 1968 | 3,315,092 | | 1967 | 3,214,077 | | 1966 | 3,113,662 | | 1965 | 3,009,583 | | 1964 | 2,894,822 | | 1963 | 2,773,198 | | 1962 | 2,654,641 | | 1961 | 2,543,361 | | 1960 | 2,444,160 |
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