Year | Value | 2022 | 365,455 | 2021 | 367,550 | 2020 | 368,058 | 2019 | 361,621 | 2018 | 352,263 | 2017 | 343,547 | 2016 | 336,082 | 2015 | 330,668 | 2014 | 327,565 | 2013 | 326,599 | 2012 | 328,121 | 2011 | 330,264 | 2010 | 329,751 | 2009 | 324,795 | 2008 | 315,121 | 2007 | 300,099 | 2006 | 283,577 | 2005 | 273,367 | 2004 | 272,137 | 2003 | 278,514 | 2002 | 290,879 | 2001 | 304,350 | 2000 | 314,742 | 1999 | 322,482 | 1998 | 328,084 | 1997 | 331,634 | 1996 | 334,228 | 1995 | 335,323 | 1994 | 334,903 | 1993 | 333,448 | 1992 | 330,413 | 1991 | 324,607 | 1990 | 315,164 | 1989 | 304,282 | 1988 | 292,676 | 1987 | 279,790 | 1986 | 266,673 | 1985 | 254,137 | 1984 | 242,928 | 1983 | 233,766 | 1982 | 227,195 | 1981 | 223,530 | 1980 | 222,557 | 1979 | 224,770 | 1978 | 228,849 | 1977 | 234,192 | 1976 | 239,714 | 1975 | 242,990 | 1974 | 244,842 | 1973 | 245,098 | 1972 | 242,469 | 1971 | 237,361 | 1970 | 231,794 | 1969 | 226,634 | 1968 | 221,685 | 1967 | 216,890 | 1966 | 212,319 | 1965 | 208,025 | 1964 | 204,374 | 1963 | 200,820 | 1962 | 196,364 | 1961 | 190,003 | 1960 | 181,661 |
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