| Year | Value | | 2023 | 1,293,837 | | 2022 | 1,255,868 | | 2021 | 1,211,738 | | 2020 | 1,180,335 | | 2019 | 1,226,617 | | 2018 | 1,215,457 | | 2017 | 1,205,124 | | 2016 | 1,199,675 | | 2015 | 1,164,633 | | 2014 | 1,143,541 | | 2013 | 1,122,275 | | 2012 | 1,121,785 | | 2011 | 1,067,462 | | 2010 | 1,050,415 | | 2009 | 1,034,266 | | 2008 | 1,016,983 | | 2007 | 990,295 | | 2006 | 970,342 | | 2005 | 922,828 | | 2004 | 905,882 | | 2003 | 887,345 | | 2002 | 867,890 | | 2001 | 847,799 | | 2000 | 827,448 | | 1999 | 807,081 | | 1998 | 786,890 | | 1997 | 767,039 | | 1996 | 738,205 | | 1995 | 710,376 | | 1994 | 683,132 | | 1993 | 656,554 | | 1992 | 630,531 | | 1991 | 606,069 |
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