| Year | Value | | 2024 | 1,379,898 | | 2023 | 1,341,164 | | 2022 | 1,303,800 | | 2021 | 1,276,980 | | 2020 | 1,258,723 | | 2019 | 1,233,910 | | 2018 | 1,203,785 | | 2017 | 1,169,221 | | 2016 | 1,134,403 | | 2015 | 1,099,137 | | 2014 | 1,067,943 | | 2013 | 1,039,711 | | 2012 | 1,020,687 | | 2011 | 1,001,793 | | 2010 | 970,975 | | 2009 | 929,336 | | 2008 | 885,664 | | 2007 | 837,887 | | 2006 | 789,851 | | 2005 | 749,854 | | 2004 | 716,361 | | 2003 | 683,563 | | 2002 | 653,545 | | 2001 | 628,665 | | 2000 | 611,188 | | 1999 | 599,768 | | 1998 | 592,568 | | 1997 | 590,048 | | 1996 | 590,726 | | 1995 | 592,135 | | 1994 | 592,655 | | 1993 | 590,779 | | 1992 | 586,332 | | 1991 | 579,326 | | 1990 | 571,234 | | 1989 | 562,547 | | 1988 | 552,567 | | 1987 | 544,156 | | 1986 | 535,475 | | 1985 | 528,651 | | 1984 | 518,887 | | 1983 | 503,350 | | 1982 | 484,954 | | 1981 | 466,540 | | 1980 | 451,521 | | 1979 | 442,820 | | 1978 | 441,586 | | 1977 | 441,947 | | 1976 | 439,964 | | 1975 | 434,170 |
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