| Year | Value | | 2024 | 657,056 | | 2023 | 626,122 | | 2022 | 598,729 | | 2021 | 572,061 | | 2020 | 547,354 | | 2019 | 523,185 | | 2018 | 502,633 | | 2017 | 491,322 | | 2016 | 485,076 | | 2015 | 483,271 | | 2014 | 485,365 | | 2013 | 487,142 | | 2012 | 487,552 | | 2011 | 485,954 | | 2010 | 475,581 | | 2009 | 459,258 | | 2008 | 444,828 | | 2007 | 424,672 | | 2006 | 401,898 | | 2005 | 375,732 | | 2004 | 351,127 | | 2003 | 329,018 | | 2002 | 309,822 | | 2001 | 293,319 | | 2000 | 278,979 | | 1999 | 266,328 | | 1998 | 254,972 | | 1997 | 244,682 | | 1996 | 235,255 | | 1995 | 226,460 | | 1994 | 218,819 | | 1993 | 212,356 | | 1992 | 206,586 | | 1991 | 201,703 | | 1990 | 197,799 | | 1989 | 194,901 | | 1988 | 192,907 | | 1987 | 191,531 | | 1986 | 190,439 | | 1985 | 189,262 | | 1984 | 187,787 | | 1983 | 185,937 | | 1982 | 183,799 | | 1981 | 181,818 | | 1980 | 179,945 | | 1979 | 177,237 | | 1978 | 173,568 | | 1977 | 169,504 | | 1976 | 165,264 | | 1975 | 161,160 |
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