| Year | Value | | 2022 | 477,152 | | 2021 | 467,439 | | 2020 | 458,543 | | 2019 | 446,930 | | 2018 | 431,985 | | 2017 | 417,360 | | 2016 | 404,160 | | 2015 | 391,134 | | 2014 | 376,952 | | 2013 | 362,335 | | 2012 | 348,284 | | 2011 | 335,416 | | 2010 | 324,005 | | 2009 | 313,907 | | 2008 | 304,777 | | 2007 | 296,523 | | 2006 | 288,508 | | 2005 | 279,749 | | 2004 | 270,334 | | 2003 | 260,384 | | 2002 | 250,032 | | 2001 | 239,730 | | 2000 | 229,850 | | 1999 | 220,338 | | 1998 | 210,918 | | 1997 | 201,641 | | 1996 | 192,854 | | 1995 | 184,759 | | 1994 | 177,231 | | 1993 | 170,973 | | 1992 | 165,971 | | 1991 | 161,161 | | 1990 | 156,294 | | 1989 | 151,469 | | 1988 | 146,712 | | 1987 | 142,193 | | 1986 | 138,435 | | 1985 | 135,655 | | 1984 | 133,670 | | 1983 | 132,388 | | 1982 | 131,570 | | 1981 | 130,632 | | 1980 | 129,302 | | 1979 | 127,665 | | 1978 | 125,764 | | 1977 | 123,572 | | 1976 | 121,127 | | 1975 | 118,450 | | 1974 | 115,462 | | 1973 | 112,026 | | 1972 | 108,292 | | 1971 | 104,785 | | 1970 | 102,364 | | 1969 | 100,463 | | 1968 | 98,606 | | 1967 | 97,169 | | 1966 | 95,649 | | 1965 | 93,780 | | 1964 | 91,627 | | 1963 | 89,162 | | 1962 | 86,413 | | 1961 | 83,673 | | 1960 | 81,097 |
|