Year | Value | 2023 | 382,267 | 2022 | 371,188 | 2021 | 359,034 | 2020 | 346,118 | 2019 | 335,012 | 2018 | 326,688 | 2017 | 321,522 | 2016 | 320,015 | 2015 | 321,986 | 2014 | 326,550 | 2013 | 332,476 | 2012 | 338,381 | 2011 | 343,148 | 2010 | 346,603 | 2009 | 349,397 | 2008 | 349,683 | 2007 | 350,917 | 2006 | 355,306 | 2005 | 358,514 | 2004 | 359,140 | 2003 | 354,265 | 2002 | 343,363 | 2001 | 327,842 | 2000 | 307,797 | 1999 | 284,677 | 1998 | 261,714 | 1997 | 241,205 | 1996 | 223,381 | 1995 | 207,879 | 1994 | 194,784 | 1993 | 183,636 | 1992 | 172,483 | 1991 | 159,205 | 1990 | 142,964 | 1989 | 125,231 | 1988 | 108,942 | 1987 | 98,142 | 1986 | 97,477 | 1985 | 108,297 | 1984 | 128,204 | 1983 | 152,694 | 1982 | 175,720 | 1981 | 191,944 | 1980 | 199,474 | 1979 | 198,636 | 1978 | 192,913 | 1977 | 186,884 | 1976 | 182,394 | 1975 | 176,698 | 1974 | 170,066 |
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