| Year | Value | | 2022 | 1,406,744 | | 2021 | 1,407,765 | | 2020 | 1,409,380 | | 2019 | 1,412,513 | | 2018 | 1,416,349 | | 2017 | 1,413,915 | | 2016 | 1,403,355 | | 2015 | 1,387,905 | | 2014 | 1,369,801 | | 2013 | 1,349,630 | | 2012 | 1,328,938 | | 2011 | 1,308,575 | | 2010 | 1,288,988 | | 2009 | 1,269,689 | | 2008 | 1,249,476 | | 2007 | 1,227,079 | | 2006 | 1,202,020 | | 2005 | 1,174,465 | | 2004 | 1,145,800 | | 2003 | 1,121,876 | | 2002 | 1,103,230 | | 2001 | 1,086,004 | | 2000 | 1,069,030 | | 1999 | 1,050,483 | | 1998 | 1,029,785 | | 1997 | 1,007,454 | | 1996 | 983,210 | | 1995 | 957,432 | | 1994 | 934,440 | | 1993 | 913,830 | | 1992 | 890,997 | | 1991 | 866,918 | | 1990 | 842,353 | | 1989 | 817,134 | | 1988 | 792,540 | | 1987 | 768,563 | | 1986 | 745,143 | | 1985 | 721,616 | | 1984 | 697,135 | | 1983 | 665,653 | | 1982 | 627,278 | | 1981 | 590,327 | | 1980 | 556,406 | | 1979 | 526,241 | | 1978 | 506,826 | | 1977 | 497,480 | | 1976 | 490,644 | | 1975 | 484,920 | | 1974 | 480,512 | | 1973 | 477,728 | | 1972 | 476,127 | | 1971 | 474,057 | | 1970 | 470,796 | | 1969 | 466,852 | | 1968 | 462,053 | | 1967 | 456,665 | | 1966 | 451,674 | | 1965 | 447,622 | | 1964 | 444,214 | | 1963 | 441,286 | | 1962 | 438,330 | | 1961 | 433,483 | | 1960 | 426,451 |
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