Year | Value | 2022 | 219,687 | 2021 | 228,627 | 2020 | 238,814 | 2019 | 250,708 | 2018 | 261,473 | 2017 | 271,708 | 2016 | 282,954 | 2015 | 290,338 | 2014 | 291,610 | 2013 | 295,104 | 2012 | 302,450 | 2011 | 306,816 | 2010 | 307,164 | 2009 | 302,446 | 2008 | 296,522 | 2007 | 288,760 | 2006 | 281,373 | 2005 | 276,381 | 2004 | 275,081 | 2003 | 275,762 | 2002 | 281,030 | 2001 | 285,309 | 2000 | 288,263 | 1999 | 289,310 | 1998 | 290,378 | 1997 | 292,825 | 1996 | 295,776 | 1995 | 289,006 | 1994 | 291,080 | 1993 | 294,194 | 1992 | 299,171 | 1991 | 305,579 | 1990 | 310,055 | 1989 | 312,809 | 1988 | 310,513 | 1987 | 306,907 | 1986 | 301,067 | 1985 | 292,033 | 1984 | 280,115 | 1983 | 266,528 | 1982 | 251,301 | 1981 | 237,599 | 1980 | 225,481 | 1979 | 215,339 | 1978 | 198,702 | 1977 | 187,634 | 1976 | 174,447 | 1975 | 158,348 | 1974 | 139,802 | 1973 | 121,154 | 1972 | 106,478 | 1971 | 96,838 | 1970 | 89,907 | 1969 | 85,576 | 1968 | 85,194 | 1967 | 87,079 | 1966 | 90,890 | 1965 | 97,491 | 1964 | 102,949 | 1963 | 108,535 | 1962 | 112,908 | 1961 | 115,553 | 1960 | 120,415 |
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