| Year | Value | | 2024 | 1,315,797 | | 2023 | 1,325,133 | | 2022 | 1,339,223 | | 2021 | 1,359,135 | | 2020 | 1,380,843 | | 2019 | 1,382,349 | | 2018 | 1,369,439 | | 2017 | 1,352,230 | | 2016 | 1,333,900 | | 2015 | 1,309,733 | | 2014 | 1,285,760 | | 2013 | 1,255,219 | | 2012 | 1,218,914 | | 2011 | 1,180,728 | | 2010 | 1,146,599 | | 2009 | 1,113,381 | | 2008 | 1,084,146 | | 2007 | 1,063,509 | | 2006 | 1,044,244 | | 2005 | 1,012,256 | | 2004 | 971,189 | | 2003 | 926,609 | | 2002 | 876,228 | | 2001 | 824,051 | | 2000 | 783,400 | | 1999 | 752,215 | | 1998 | 722,500 | | 1997 | 694,381 | | 1996 | 670,172 | | 1995 | 651,160 | | 1994 | 636,066 | | 1993 | 624,456 | | 1992 | 619,069 | | 1991 | 618,839 | | 1990 | 621,207 | | 1989 | 623,696 | | 1988 | 624,046 | | 1987 | 624,571 | | 1986 | 622,221 | | 1985 | 620,226 | | 1984 | 618,410 | | 1983 | 616,979 | | 1982 | 615,754 | | 1981 | 613,517 | | 1980 | 608,609 | | 1979 | 596,946 | | 1978 | 578,973 | | 1977 | 555,986 | | 1976 | 532,173 | | 1975 | 512,662 |
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