Year | Value | 2024 | 322,789 | 2023 | 330,700 | 2022 | 335,516 | 2021 | 337,141 | 2020 | 336,407 | 2019 | 335,170 | 2018 | 335,190 | 2017 | 338,479 | 2016 | 346,976 | 2015 | 361,370 | 2014 | 380,381 | 2013 | 399,386 | 2012 | 412,157 | 2011 | 415,543 | 2010 | 411,766 | 2009 | 403,646 | 2008 | 393,640 | 2007 | 384,183 | 2006 | 372,306 | 2005 | 356,907 | 2004 | 342,376 | 2003 | 332,180 | 2002 | 330,233 | 2001 | 340,228 | 2000 | 360,669 | 1999 | 388,204 | 1998 | 421,359 | 1997 | 457,334 | 1996 | 491,575 | 1995 | 520,407 | 1994 | 542,032 | 1993 | 555,850 | 1992 | 563,560 | 1991 | 568,457 | 1990 | 572,661 | 1989 | 576,197 | 1988 | 577,108 | 1987 | 572,561 | 1986 | 559,927 | 1985 | 538,210 | 1984 | 509,122 | 1983 | 476,258 | 1982 | 443,914 | 1981 | 416,266 | 1980 | 398,145 | 1979 | 389,527 | 1978 | 385,947 | 1977 | 384,524 | 1976 | 382,936 | 1975 | 380,470 |
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