| Year | Value | | 2023 | 8,670,000 | | 2022 | 8,660,000 | | 2021 | 7,980,000 | | 2020 | 7,870,000 | | 2019 | 7,760,000 | | 2018 | 7,440,000 | | 2017 | 7,470,000 | | 2016 | 7,490,000 | | 2015 | 7,410,000 | | 2014 | 7,310,000 | | 2013 | 7,050,000 | | 2012 | 6,790,000 | | 2011 | 6,530,000 | | 2010 | 5,920,000 | | 2009 | 5,620,000 | | 2008 | 5,790,000 | | 2007 | 4,690,000 | | 2006 | 3,230,000 | | 2005 | 1,890,000 | | 2004 | 1,750,000 | | 2003 | 1,770,000 | | 2002 | 1,670,000 | | 2001 | 1,150,000 | | 2000 | 820,810 | | 1999 | 435,611 | | 1998 | 231,520 | | 1997 | 84,240 | | 1996 | 32,860 | | 1995 | 15,807 | | 1994 | 7,660 | | 1993 | 3,390 | | 1992 | 1,500 |
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