Year | Value | 2023 | 325,155 | 2022 | 328,744 | 2021 | 338,857 | 2020 | 353,111 | 2019 | 369,725 | 2018 | 386,179 | 2017 | 403,660 | 2016 | 420,803 | 2015 | 436,368 | 2014 | 448,617 | 2013 | 455,809 | 2012 | 459,712 | 2011 | 460,568 | 2010 | 457,206 | 2009 | 449,718 | 2008 | 435,785 | 2007 | 419,482 | 2006 | 405,222 | 2005 | 389,668 | 2004 | 373,870 | 2003 | 359,309 | 2002 | 346,365 | 2001 | 334,359 | 2000 | 323,224 | 1999 | 313,240 | 1998 | 306,058 | 1997 | 303,437 | 1996 | 303,779 | 1995 | 311,136 | 1994 | 325,801 | 1993 | 337,654 | 1992 | 341,724 | 1991 | 343,782 | 1990 | 342,670 | 1989 | 338,703 | 1988 | 338,651 | 1987 | 347,298 | 1986 | 362,906 | 1985 | 379,525 | 1984 | 395,998 | 1983 | 401,668 | 1982 | 393,394 | 1981 | 377,925 | 1980 | 355,823 | 1979 | 327,971 | 1978 | 298,903 | 1977 | 276,771 | 1976 | 263,452 | 1975 | 250,426 |
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