| Year | Value | | 2022 | 451,447 | | 2021 | 441,620 | | 2020 | 431,982 | | 2019 | 421,709 | | 2018 | 410,205 | | 2017 | 398,815 | | 2016 | 388,056 | | 2015 | 376,992 | | 2014 | 365,641 | | 2013 | 354,610 | | 2012 | 344,033 | | 2011 | 333,898 | | 2010 | 324,362 | | 2009 | 315,374 | | 2008 | 306,642 | | 2007 | 297,967 | | 2006 | 289,343 | | 2005 | 280,932 | | 2004 | 272,769 | | 2003 | 264,182 | | 2002 | 253,981 | | 2001 | 242,493 | | 2000 | 231,011 | | 1999 | 219,862 | | 1998 | 209,530 | | 1997 | 201,114 | | 1996 | 194,291 | | 1995 | 187,785 | | 1994 | 181,257 | | 1993 | 174,804 | | 1992 | 168,575 | | 1991 | 162,743 | | 1990 | 157,340 | | 1989 | 152,352 | | 1988 | 147,891 | | 1987 | 143,912 | | 1986 | 140,128 | | 1985 | 136,386 | | 1984 | 132,720 | | 1983 | 129,131 | | 1982 | 125,550 | | 1981 | 121,982 | | 1980 | 118,448 | | 1979 | 114,937 | | 1978 | 111,428 | | 1977 | 107,983 | | 1976 | 104,711 | | 1975 | 101,664 | | 1974 | 98,823 | | 1973 | 96,146 | | 1972 | 93,728 | | 1971 | 91,737 | | 1970 | 90,219 | | 1969 | 89,151 | | 1968 | 88,582 | | 1967 | 88,249 | | 1966 | 87,639 | | 1965 | 86,473 | | 1964 | 84,791 | | 1963 | 82,592 | | 1962 | 80,053 | | 1961 | 77,675 | | 1960 | 75,760 |
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