Year | Value | 2022 | 147,591 | 2021 | 150,653 | 2020 | 153,795 | 2019 | 156,815 | 2018 | 159,906 | 2017 | 162,897 | 2016 | 165,772 | 2015 | 168,610 | 2014 | 171,449 | 2013 | 174,367 | 2012 | 177,355 | 2011 | 181,125 | 2010 | 187,279 | 2009 | 193,660 | 2008 | 200,234 | 2007 | 207,075 | 2006 | 214,188 | 2005 | 221,653 | 2004 | 229,381 | 2003 | 237,408 | 2002 | 245,702 | 2001 | 254,073 | 2000 | 262,456 | 1999 | 270,744 | 1998 | 278,959 | 1997 | 287,286 | 1996 | 295,721 | 1995 | 303,441 | 1994 | 311,179 | 1993 | 319,078 | 1992 | 327,137 | 1991 | 335,360 | 1990 | 343,713 | 1989 | 352,137 | 1988 | 360,560 | 1987 | 369,318 | 1986 | 378,387 | 1985 | 387,281 | 1984 | 395,586 | 1983 | 404,153 | 1982 | 412,974 | 1981 | 422,102 | 1980 | 431,425 | 1979 | 440,845 | 1978 | 450,111 | 1977 | 459,237 | 1976 | 468,184 | 1975 | 477,117 | 1974 | 480,344 | 1973 | 483,111 | 1972 | 486,045 | 1971 | 488,997 | 1970 | 491,980 | 1969 | 494,763 | 1968 | 496,952 | 1967 | 498,589 | 1966 | 499,745 | 1965 | 500,489 | 1964 | 500,928 | 1963 | 501,007 | 1962 | 500,834 | 1961 | 500,398 | 1960 | 499,709 |
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