| Year | Value | | 2024 | 1,420,058 | | 2023 | 1,382,346 | | 2022 | 1,343,946 | | 2021 | 1,316,005 | | 2020 | 1,298,328 | | 2019 | 1,274,174 | | 2018 | 1,245,299 | | 2017 | 1,211,738 | | 2016 | 1,175,834 | | 2015 | 1,137,122 | | 2014 | 1,101,512 | | 2013 | 1,068,404 | | 2012 | 1,045,468 | | 2011 | 1,025,703 | | 2010 | 996,750 | | 2009 | 957,138 | | 2008 | 914,429 | | 2007 | 866,821 | | 2006 | 818,407 | | 2005 | 778,078 | | 2004 | 744,795 | | 2003 | 712,286 | | 2002 | 682,354 | | 2001 | 657,146 | | 2000 | 638,936 | | 1999 | 626,413 | | 1998 | 617,820 | | 1997 | 613,890 | | 1996 | 613,363 | | 1995 | 614,319 | | 1994 | 615,737 | | 1993 | 616,175 | | 1992 | 615,014 | | 1991 | 612,927 | | 1990 | 611,822 | | 1989 | 610,685 | | 1988 | 607,675 | | 1987 | 605,647 | | 1986 | 601,708 | | 1985 | 597,265 | | 1984 | 587,022 | | 1983 | 568,392 | | 1982 | 545,358 | | 1981 | 522,067 | | 1980 | 502,752 | | 1979 | 490,003 | | 1978 | 484,226 | | 1977 | 479,248 | | 1976 | 472,170 | | 1975 | 461,833 |
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