| Year | Value | | 2022 | 33,068,233 | | 2021 | 30,127,704 | | 2020 | 27,688,987 | | 2019 | 25,395,503 | | 2018 | 24,472,033 | | 2017 | 24,948,878 | | 2016 | 22,838,486 | | 2015 | 20,220,273 | | 2014 | 20,365,941 | | 2013 | 18,068,648 | | 2012 | 16,356,387 | | 2011 | 16,696,992 | | 2010 | 12,828,264 | | 2009 | 9,383,734 | | 2008 | 8,554,864 | | 2007 | 4,195,278 | | 2006 | 2,008,818 | | 2005 | 1,315,300 | | 2004 | 1,165,035 | | 2003 | 776,169 | | 2002 | 393,310 | | 2001 | 283,520 | | 2000 | 126,913 | | 1999 | 56,358 | | 1998 | 30,000 | | 1997 | 5,000 | | 1996 | 4,000 | | 1995 | 1,747 |
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