Year | Value | 2023 | 428,606 | 2022 | 418,184 | 2021 | 407,393 | 2020 | 396,391 | 2019 | 385,481 | 2018 | 371,669 | 2017 | 356,802 | 2016 | 343,762 | 2015 | 332,628 | 2014 | 323,032 | 2013 | 313,558 | 2012 | 305,819 | 2011 | 300,336 | 2010 | 299,092 | 2009 | 301,396 | 2008 | 302,802 | 2007 | 303,774 | 2006 | 306,169 | 2005 | 308,250 | 2004 | 310,227 | 2003 | 312,414 | 2002 | 315,293 | 2001 | 319,416 | 2000 | 323,130 | 1999 | 324,530 | 1998 | 321,342 | 1997 | 313,743 | 1996 | 301,855 | 1995 | 285,535 | 1994 | 266,922 | 1993 | 246,856 | 1992 | 228,352 | 1991 | 213,763 | 1990 | 201,547 | 1989 | 190,971 | 1988 | 182,330 | 1987 | 172,665 | 1986 | 158,544 | 1985 | 140,329 | 1984 | 120,907 | 1983 | 103,676 | 1982 | 92,101 | 1981 | 90,940 | 1980 | 101,981 | 1979 | 121,542 | 1978 | 143,880 | 1977 | 162,574 | 1976 | 174,234 | 1975 | 182,281 | 1974 | 185,626 |
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