| Year | Value | | 2023 | 1,024,067 | | 2022 | 987,094 | | 2021 | 953,147 | | 2020 | 916,431 | | 2019 | 892,509 | | 2018 | 856,919 | | 2017 | 823,105 | | 2016 | 788,343 | | 2015 | 756,005 | | 2014 | 727,843 | | 2013 | 699,584 | | 2012 | 674,128 | | 2011 | 659,662 | | 2010 | 648,040 | | 2009 | 630,287 | | 2008 | 614,376 | | 2007 | 598,178 | | 2006 | 584,430 | | 2005 | 572,509 | | 2004 | 556,625 | | 2003 | 539,109 | | 2002 | 521,945 | | 2001 | 505,577 | | 2000 | 489,470 | | 1999 | 473,274 | | 1998 | 458,029 | | 1997 | 443,223 | | 1996 | 431,737 | | 1995 | 420,183 | | 1994 | 408,802 | | 1993 | 391,521 | | 1992 | 380,172 | | 1991 | 395,240 |
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