| Year | Value | | 2022 | 1,226,030 | | 2021 | 1,240,670 | | 2020 | 1,275,098 | | 2019 | 1,294,271 | | 2018 | 1,287,238 | | 2017 | 1,283,408 | | 2016 | 1,291,713 | | 2015 | 1,306,991 | | 2014 | 1,294,229 | | 2013 | 1,248,962 | | 2012 | 1,188,122 | | 2011 | 1,118,306 | | 2010 | 1,047,071 | | 2009 | 979,086 | | 2008 | 916,243 | | 2007 | 860,083 | | 2006 | 810,791 | | 2005 | 765,751 | | 2004 | 720,183 | | 2003 | 669,637 | | 2002 | 617,586 | | 2001 | 570,405 | | 2000 | 530,080 | | 1999 | 497,138 | | 1998 | 471,312 | | 1997 | 451,609 | | 1996 | 436,241 | | 1995 | 423,639 | | 1994 | 415,187 | | 1993 | 408,696 | | 1992 | 394,715 | | 1991 | 373,646 | | 1990 | 352,555 | | 1989 | 332,855 | | 1988 | 314,340 | | 1987 | 297,084 | | 1986 | 281,332 | | 1985 | 266,929 | | 1984 | 254,247 | | 1983 | 243,880 | | 1982 | 234,940 | | 1981 | 226,557 | | 1980 | 219,022 | | 1979 | 212,397 | | 1978 | 206,671 | | 1977 | 201,716 | | 1976 | 197,107 | | 1975 | 192,575 | | 1974 | 185,165 | | 1973 | 175,141 | | 1972 | 165,899 | | 1971 | 157,749 | | 1970 | 150,731 | | 1969 | 144,511 | | 1968 | 138,776 | | 1967 | 133,429 | | 1966 | 128,459 | | 1965 | 123,800 | | 1964 | 119,370 | | 1963 | 115,145 | | 1962 | 111,146 | | 1961 | 107,440 | | 1960 | 104,093 |
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