| Year | Value | | 2022 | 270,076 | | 2021 | 261,645 | | 2020 | 253,998 | | 2019 | 246,533 | | 2018 | 239,068 | | 2017 | 231,823 | | 2016 | 224,082 | | 2015 | 217,031 | | 2014 | 211,169 | | 2013 | 205,251 | | 2012 | 200,045 | | 2011 | 197,843 | | 2010 | 196,108 | | 2009 | 192,705 | | 2008 | 189,560 | | 2007 | 185,678 | | 2006 | 181,669 | | 2005 | 177,914 | | 2004 | 173,596 | | 2003 | 169,102 | | 2002 | 164,806 | | 2001 | 160,635 | | 2000 | 156,285 | | 1999 | 150,830 | | 1998 | 143,730 | | 1997 | 136,036 | | 1996 | 128,862 | | 1995 | 121,092 | | 1994 | 114,370 | | 1993 | 107,836 | | 1992 | 103,561 | | 1991 | 106,922 | | 1990 | 110,976 | | 1989 | 112,893 | | 1988 | 117,115 | | 1987 | 119,651 | | 1986 | 117,655 | | 1985 | 114,232 | | 1984 | 110,143 | | 1983 | 105,629 | | 1982 | 101,097 | | 1981 | 99,826 | | 1980 | 98,912 | | 1979 | 91,131 | | 1978 | 81,205 | | 1977 | 76,715 | | 1976 | 75,801 | | 1975 | 74,839 | | 1974 | 73,811 | | 1973 | 72,702 | | 1972 | 71,503 | | 1971 | 70,333 | | 1970 | 69,197 | | 1969 | 68,045 | | 1968 | 66,873 | | 1967 | 65,693 | | 1966 | 64,526 | | 1965 | 63,373 | | 1964 | 62,230 | | 1963 | 61,108 | | 1962 | 59,998 | | 1961 | 58,896 | | 1960 | 57,805 |
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