| Year | Value | | 2022 | 8,887,682 | | 2021 | 8,700,815 | | 2020 | 8,498,812 | | 2019 | 8,284,383 | | 2018 | 8,078,807 | | 2017 | 7,905,632 | | 2016 | 7,766,489 | | 2015 | 7,654,728 | | 2014 | 7,567,659 | | 2013 | 7,507,476 | | 2012 | 7,460,189 | | 2011 | 7,402,062 | | 2010 | 7,334,579 | | 2009 | 7,264,673 | | 2008 | 7,181,079 | | 2007 | 7,083,658 | | 2006 | 6,982,689 | | 2005 | 6,874,229 | | 2004 | 6,761,031 | | 2003 | 6,646,017 | | 2002 | 6,523,088 | | 2001 | 6,396,008 | | 2000 | 6,269,538 | | 1999 | 6,136,108 | | 1998 | 5,995,637 | | 1997 | 5,848,158 | | 1996 | 5,697,885 | | 1995 | 5,547,805 | | 1994 | 5,386,988 | | 1993 | 5,221,704 | | 1992 | 5,061,661 | | 1991 | 4,855,125 | | 1990 | 4,623,627 | | 1989 | 4,412,451 | | 1988 | 4,183,714 | | 1987 | 3,953,283 | | 1986 | 3,788,773 | | 1985 | 3,688,714 | | 1984 | 3,617,435 | | 1983 | 3,575,328 | | 1982 | 3,504,306 | | 1981 | 3,368,687 | | 1980 | 3,277,433 | | 1979 | 3,245,009 | | 1978 | 3,181,826 | | 1977 | 3,115,397 | | 1976 | 3,046,214 | | 1975 | 2,972,672 | | 1974 | 2,915,363 | | 1973 | 2,849,422 | | 1972 | 2,773,574 | | 1971 | 2,690,732 | | 1970 | 2,601,321 | | 1969 | 2,513,003 | | 1968 | 2,427,998 | | 1967 | 2,346,845 | | 1966 | 2,277,038 | | 1965 | 2,210,268 | | 1964 | 2,137,938 | | 1963 | 2,064,727 | | 1962 | 1,986,198 | | 1961 | 1,908,283 | | 1960 | 1,839,923 |
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