Year Dollars 1992-01-01 54399 1997-01-01 218309 2002-01-01 811746 2003-01-01 1870858 2004-01-01 5493275 2005-01-01 5752064 2006-01-01 5585278 2007-01-01 10014061 2008-01-01 14620499 2009-01-01 12612810 2010-01-01 12781259 2011-01-01 16891408 2012-01-01 14090411 2013-01-01 13343605 2014-01-01 29236387 2015-01-01 25180109 2016-01-01 23841625