| Year | Value | | 2022 | 358,366 | | 2021 | 351,721 | | 2020 | 345,450 | | 2019 | 339,393 | | 2018 | 333,272 | | 2017 | 330,475 | | 2016 | 330,977 | | 2015 | 330,943 | | 2014 | 330,156 | | 2013 | 328,662 | | 2012 | 320,281 | | 2011 | 305,228 | | 2010 | 290,643 | | 2009 | 277,329 | | 2008 | 265,516 | | 2007 | 256,921 | | 2006 | 251,188 | | 2005 | 246,225 | | 2004 | 241,938 | | 2003 | 238,150 | | 2002 | 234,618 | | 2001 | 231,276 | | 2000 | 228,419 | | 1999 | 225,769 | | 1998 | 223,092 | | 1997 | 219,601 | | 1996 | 214,903 | | 1995 | 209,121 | | 1994 | 202,225 | | 1993 | 194,886 | | 1992 | 187,856 | | 1991 | 182,102 | | 1990 | 177,417 | | 1989 | 173,303 | | 1988 | 169,489 | | 1987 | 165,766 | | 1986 | 162,157 | | 1985 | 158,433 | | 1984 | 154,470 | | 1983 | 150,477 | | 1982 | 146,539 | | 1981 | 142,562 | | 1980 | 138,654 | | 1979 | 134,961 | | 1978 | 131,347 | | 1977 | 127,771 | | 1976 | 124,336 | | 1975 | 121,069 | | 1974 | 117,955 | | 1973 | 114,935 | | 1972 | 111,973 | | 1971 | 109,012 | | 1970 | 105,948 | | 1969 | 102,729 | | 1968 | 99,424 | | 1967 | 96,067 | | 1966 | 92,716 | | 1965 | 89,448 | | 1964 | 86,294 | | 1963 | 83,271 | | 1962 | 80,364 | | 1961 | 77,560 | | 1960 | 74,884 |
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