| Year | Value | | 2022 | 476,876 | | 2021 | 458,528 | | 2020 | 440,597 | | 2019 | 422,164 | | 2018 | 403,135 | | 2017 | 384,236 | | 2016 | 365,645 | | 2015 | 347,595 | | 2014 | 330,345 | | 2013 | 313,920 | | 2012 | 298,340 | | 2011 | 283,890 | | 2010 | 270,533 | | 2009 | 258,252 | | 2008 | 247,254 | | 2007 | 237,385 | | 2006 | 228,438 | | 2005 | 220,085 | | 2004 | 212,198 | | 2003 | 204,532 | | 2002 | 197,043 | | 2001 | 189,662 | | 2000 | 182,472 | | 1999 | 175,983 | | 1998 | 170,016 | | 1997 | 164,294 | | 1996 | 158,851 | | 1995 | 153,909 | | 1994 | 149,235 | | 1993 | 144,209 | | 1992 | 139,409 | | 1991 | 135,404 | | 1990 | 131,645 | | 1989 | 128,126 | | 1988 | 125,362 | | 1987 | 122,705 | | 1986 | 119,483 | | 1985 | 116,263 | | 1984 | 113,318 | | 1983 | 110,624 | | 1982 | 108,070 | | 1981 | 105,745 | | 1980 | 103,744 | | 1979 | 101,937 | | 1978 | 100,223 | | 1977 | 98,530 | | 1976 | 96,844 | | 1975 | 95,163 | | 1974 | 93,456 | | 1973 | 91,672 | | 1972 | 89,859 | | 1971 | 88,149 | | 1970 | 86,595 | | 1969 | 84,974 | | 1968 | 83,242 | | 1967 | 81,540 | | 1966 | 79,751 | | 1965 | 77,794 | | 1964 | 75,706 | | 1963 | 73,476 | | 1962 | 71,152 | | 1961 | 68,927 | | 1960 | 66,900 |
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