| Year | Value | | 2022 | 400,173 | | 2021 | 383,010 | | 2020 | 367,426 | | 2019 | 353,462 | | 2018 | 341,291 | | 2017 | 330,469 | | 2016 | 320,500 | | 2015 | 311,195 | | 2014 | 302,317 | | 2013 | 293,603 | | 2012 | 285,053 | | 2011 | 276,790 | | 2010 | 268,815 | | 2009 | 261,037 | | 2008 | 253,414 | | 2007 | 245,799 | | 2006 | 238,031 | | 2005 | 230,169 | | 2004 | 222,294 | | 2003 | 214,564 | | 2002 | 207,075 | | 2001 | 199,730 | | 2000 | 192,534 | | 1999 | 185,409 | | 1998 | 178,690 | | 1997 | 174,610 | | 1996 | 173,609 | | 1995 | 173,834 | | 1994 | 174,746 | | 1993 | 175,763 | | 1992 | 174,629 | | 1991 | 170,923 | | 1990 | 166,340 | | 1989 | 161,693 | | 1988 | 157,476 | | 1987 | 153,721 | | 1986 | 150,231 | | 1985 | 146,777 | | 1984 | 143,338 | | 1983 | 139,995 | | 1982 | 136,877 | | 1981 | 134,171 | | 1980 | 131,883 | | 1979 | 129,913 | | 1978 | 128,200 | | 1977 | 126,701 | | 1976 | 125,387 | | 1975 | 124,221 | | 1974 | 123,126 | | 1973 | 122,059 | | 1972 | 120,973 | | 1971 | 119,837 | | 1970 | 118,635 | | 1969 | 117,339 | | 1968 | 115,963 | | 1967 | 114,501 | | 1966 | 112,986 | | 1965 | 111,410 | | 1964 | 109,774 | | 1963 | 108,119 | | 1962 | 106,400 | | 1961 | 104,543 | | 1960 | 102,516 |
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