| Year | Value | | 2022 | 2,238,485 | | 2021 | 2,174,962 | | 2020 | 2,111,791 | | 2019 | 2,043,150 | | 2018 | 1,974,063 | | 2017 | 1,906,779 | | 2016 | 1,841,832 | | 2015 | 1,778,900 | | 2014 | 1,722,707 | | 2013 | 1,669,714 | | 2012 | 1,613,217 | | 2011 | 1,554,478 | | 2010 | 1,492,881 | | 2009 | 1,427,049 | | 2008 | 1,358,783 | | 2007 | 1,296,616 | | 2006 | 1,242,650 | | 2005 | 1,187,657 | | 2004 | 1,131,357 | | 2003 | 1,080,732 | | 2002 | 1,037,637 | | 2001 | 1,002,960 | | 2000 | 975,749 | | 1999 | 949,858 | | 1998 | 923,479 | | 1997 | 898,006 | | 1996 | 872,826 | | 1995 | 849,334 | | 1994 | 826,547 | | 1993 | 801,188 | | 1992 | 773,830 | | 1991 | 747,508 | | 1990 | 723,065 | | 1989 | 699,349 | | 1988 | 677,151 | | 1987 | 656,746 | | 1986 | 637,165 | | 1985 | 617,912 | | 1984 | 598,635 | | 1983 | 579,066 | | 1982 | 559,849 | | 1981 | 541,958 | | 1980 | 526,271 | | 1979 | 513,981 | | 1978 | 504,132 | | 1977 | 494,720 | | 1976 | 485,044 | | 1975 | 474,652 | | 1974 | 462,796 | | 1973 | 449,270 | | 1972 | 434,455 | | 1971 | 418,768 | | 1970 | 404,392 | | 1969 | 393,198 | | 1968 | 382,866 | | 1967 | 371,119 | | 1966 | 357,822 | | 1965 | 342,643 | | 1964 | 326,929 | | 1963 | 312,784 | | 1962 | 300,136 | | 1961 | 288,866 | | 1960 | 279,849 |
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