| Year | Value | | 2022 | 498,864 | | 2021 | 476,523 | | 2020 | 455,329 | | 2019 | 436,037 | | 2018 | 418,607 | | 2017 | 402,967 | | 2016 | 388,908 | | 2015 | 376,312 | | 2014 | 364,698 | | 2013 | 353,530 | | 2012 | 342,718 | | 2011 | 332,068 | | 2010 | 321,511 | | 2009 | 311,050 | | 2008 | 300,690 | | 2007 | 290,519 | | 2006 | 280,651 | | 2005 | 271,195 | | 2004 | 262,169 | | 2003 | 250,002 | | 2002 | 233,991 | | 2001 | 217,609 | | 2000 | 201,510 | | 1999 | 185,756 | | 1998 | 174,239 | | 1997 | 167,826 | | 1996 | 162,862 | | 1995 | 158,683 | | 1994 | 155,273 | | 1993 | 152,575 | | 1992 | 150,435 | | 1991 | 148,562 | | 1990 | 146,701 | | 1989 | 144,788 | | 1988 | 142,805 | | 1987 | 140,625 | | 1986 | 138,102 | | 1985 | 135,136 | | 1984 | 131,653 | | 1983 | 127,546 | | 1982 | 123,008 | | 1981 | 118,530 | | 1980 | 114,393 | | 1979 | 110,548 | | 1978 | 107,034 | | 1977 | 103,744 | | 1976 | 100,238 | | 1975 | 96,314 | | 1974 | 92,108 | | 1973 | 87,632 | | 1972 | 83,171 | | 1971 | 79,447 | | 1970 | 76,886 | | 1969 | 75,383 | | 1968 | 74,818 | | 1967 | 75,259 | | 1966 | 76,635 | | 1965 | 78,825 | | 1964 | 81,825 | | 1963 | 85,790 | | 1962 | 90,093 | | 1961 | 93,572 | | 1960 | 95,492 |
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