| Year | Value | | 2022 | 25,869,010 | | 2021 | 24,334,901 | | 2020 | 25,315,598 | | 2019 | 22,925,482 | | 2018 | 21,955,565 | | 2017 | 22,034,110 | | 2016 | 20,217,697 | | 2015 | 22,698,915 | | 2014 | 23,505,559 | | 2013 | 19,749,371 | | 2012 | 14,612,835 | | 2011 | 10,821,930 | | 2010 | 7,440,383 | | 2009 | 4,460,543 | | 2008 | 3,438,568 | | 2007 | 2,530,891 | | 2006 | 1,512,948 | | 2005 | 761,986 | | 2004 | 406,861 | | 2003 | 247,223 | | 2002 | 45,974 | | 2001 | 23,997 | | 2000 | 10,398 | | 1999 | 6,387 | | 1998 | 4,473 | | 1997 | 2,842 | | 1996 | 1,187 |
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