| Year | Value | | 2022 | 6,890,901 | | 2021 | 6,426,848 | | 2020 | 6,108,584 | | 2019 | 5,825,677 | | 2018 | 5,722,370 | | 2017 | 5,280,195 | | 2016 | 5,141,768 | | 2015 | 5,741,929 | | 2014 | 6,906,090 | | 2013 | 6,204,636 | | 2012 | 6,213,564 | | 2011 | 6,735,429 | | 2010 | 6,646,348 | | 2009 | 6,066,683 | | 2008 | 3,915,246 | | 2007 | 3,010,635 | | 2006 | 2,174,451 | | 2005 | 1,748,740 | | 2004 | 1,259,948 | | 2003 | 692,406 | | 2002 | 525,845 | | 2001 | 475,141 | | 2000 | 410,401 | | 1999 | 232,888 | | 1998 | 85,883 | | 1997 | 23,474 | | 1996 | 7,000 |
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