| Year | Value | | 2024 | 381,158 | | 2023 | 398,680 | | 2022 | 409,105 | | 2021 | 411,479 | | 2020 | 409,214 | | 2019 | 402,366 | | 2018 | 391,955 | | 2017 | 382,419 | | 2016 | 369,810 | | 2015 | 352,159 | | 2014 | 337,501 | | 2013 | 328,364 | | 2012 | 326,003 | | 2011 | 336,369 | | 2010 | 355,946 | | 2009 | 379,919 | | 2008 | 410,357 | | 2007 | 445,175 | | 2006 | 477,845 | | 2005 | 505,057 | | 2004 | 525,422 | | 2003 | 537,189 | | 2002 | 542,578 | | 2001 | 547,327 | | 2000 | 555,389 | | 1999 | 565,735 | | 1998 | 573,243 | | 1997 | 572,245 | | 1996 | 560,142 | | 1995 | 537,767 | | 1994 | 508,126 | | 1993 | 474,436 | | 1992 | 440,783 | | 1991 | 411,786 | | 1990 | 390,038 | | 1989 | 376,037 | | 1988 | 368,502 | | 1987 | 365,383 | | 1986 | 364,461 | | 1985 | 363,763 | | 1984 | 362,206 | | 1983 | 359,360 | | 1982 | 355,034 | | 1981 | 349,527 | | 1980 | 343,481 | | 1979 | 337,280 | | 1978 | 331,577 | | 1977 | 326,919 | | 1976 | 322,920 | | 1975 | 319,010 |
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