| Year | Value | | 2021 | 1,102,455 | | 2020 | 545,265 | | 2019 | 2,585,280 | | 2018 | 2,279,546 | | 2017 | 2,331,308 | | 2016 | 1,961,639 | | 2015 | 1,803,112 | | 2014 | 1,770,192 | | 2013 | 1,651,710 | | 2012 | 1,560,084 | | 2011 | 1,348,414 | | 2010 | 796,698 | | 2009 | 839,514 | | 2008 | 756,338 | | 2007 | 1,440,700 | | 2006 | 1,253,400 | | 2005 | 1,134,300 | | 2004 | 1,007,000 | | 2003 | 683,700 | | 2002 | 575,300 | | 2001 | 543,800 | | 2000 | 545,800 | | 1999 | 571,700 | | 1998 | 669,400 | | 1997 | 981,800 | | 1996 | 1,232,900 | | 1995 | 1,156,000 | | 1994 | 1,380,000 | | 1993 | 1,383,400 | | 1992 | 1,454,900 |
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