| Year | Value | | 2024 | 972,487 | | 2023 | 948,699 | | 2022 | 913,003 | | 2021 | 875,224 | | 2020 | 844,722 | | 2019 | 809,215 | | 2018 | 768,982 | | 2017 | 732,196 | | 2016 | 698,190 | | 2015 | 666,426 | | 2014 | 636,795 | | 2013 | 609,140 | | 2012 | 583,412 | | 2011 | 559,852 | | 2010 | 539,995 | | 2009 | 523,131 | | 2008 | 506,758 | | 2007 | 490,885 | | 2006 | 476,129 | | 2005 | 462,840 | | 2004 | 450,930 | | 2003 | 440,541 | | 2002 | 431,765 | | 2001 | 424,166 | | 2000 | 416,585 | | 1999 | 409,380 | | 1998 | 403,658 | | 1997 | 399,158 | | 1996 | 395,769 | | 1995 | 393,240 | | 1994 | 391,047 | | 1993 | 388,696 | | 1992 | 385,970 | | 1991 | 382,970 | | 1990 | 379,309 | | 1989 | 374,599 | | 1988 | 369,103 | | 1987 | 362,713 | | 1986 | 355,072 | | 1985 | 346,068 | | 1984 | 335,825 | | 1983 | 324,467 | | 1982 | 312,093 | | 1981 | 298,833 | | 1980 | 284,841 | | 1979 | 270,233 | | 1978 | 255,110 | | 1977 | 240,032 | | 1976 | 225,891 | | 1975 | 213,218 |
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