Year | Value | 2023 | 328,757 | 2022 | 336,077 | 2021 | 347,031 | 2020 | 360,412 | 2019 | 376,464 | 2018 | 394,078 | 2017 | 411,673 | 2016 | 427,328 | 2015 | 439,770 | 2014 | 449,012 | 2013 | 455,475 | 2012 | 459,534 | 2011 | 460,906 | 2010 | 459,003 | 2009 | 453,993 | 2008 | 440,928 | 2007 | 424,462 | 2006 | 410,140 | 2005 | 394,145 | 2004 | 376,962 | 2003 | 361,344 | 2002 | 348,292 | 2001 | 336,269 | 2000 | 325,103 | 1999 | 315,139 | 1998 | 308,172 | 1997 | 305,379 | 1996 | 305,296 | 1995 | 308,260 | 1994 | 312,268 | 1993 | 317,601 | 1992 | 322,514 | 1991 | 328,728 | 1990 | 337,208 | 1989 | 346,875 | 1988 | 356,844 | 1987 | 366,525 | 1986 | 375,851 | 1985 | 384,179 | 1984 | 392,157 | 1983 | 393,390 | 1982 | 386,251 | 1981 | 372,086 | 1980 | 351,040 | 1979 | 324,658 | 1978 | 299,493 | 1977 | 281,788 | 1976 | 270,927 | 1975 | 259,262 | 1974 | 244,017 |
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