| Year | Value | | 2021 | 4,864,895.695 | | 2020 | 3,825,022.622 | | 2019 | 9,217,856.065 | | 2018 | 9,059,612.7870813 | | 2017 | 8,799,738 | | 2016 | 8,693,238 | | 2015 | 8,426,406 | | 2014 | 8,165,780.3446493 | | 2013 | 7,995,554.4122362 | | 2012 | 7,963,663.9825596 | | 2011 | 8,015,873.0739271 | | 2010 | 7,595,375.372279 | | 2009 | 6,941,775 | | 2008 | 7,106,264 | | 2007 | 6,941,099 | | 2006 | 6,602,653 | | 2005 | 6,300,264 | | 2004 | 6,481,841 | | 2003 | 6,113,024 | | 2002 | 6,044,393 | | 2001 | 6,291,425 | | 2000 | 6,236,642 | | 1999 | 5,933,900 | | 1998 | 5,502,800 | | 1997 | 5,391,600 | | 1996 | 5,087,200 | | 1995 | 4,875,900 | | 1994 | 4,752,600 | | 1993 | 4,699,400 | | 1992 | 3,665,600 |
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