| Year | Value | | 2022 | 60,192,331 | | 2021 | 54,044,384 | | 2020 | 51,220,233 | | 2019 | 47,685,232 | | 2018 | 43,497,261 | | 2017 | 39,953,860 | | 2016 | 40,044,186 | | 2015 | 39,665,600 | | 2014 | 31,862,656 | | 2013 | 27,442,823 | | 2012 | 27,219,283 | | 2011 | 25,666,455 | | 2010 | 20,983,853 | | 2009 | 17,469,486 | | 2008 | 13,006,793 | | 2007 | 8,252,000 | | 2006 | 5,609,000 | | 2005 | 2,964,000 | | 2004 | 1,942,000 | | 2003 | 1,298,000 | | 2002 | 606,859 | | 2001 | 275,560 | | 2000 | 110,518 | | 1999 | 50,950 | | 1998 | 37,940 | | 1997 | 20,200 | | 1996 | 9,038 | | 1995 | 3,500 | | 1994 | 371 |
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