Year Dollars 1992-01-01 811925 1997-01-01 1662839 2002-01-01 3554306 2003-01-01 4919783 2004-01-01 4303866 2005-01-01 5808929 2006-01-01 3006313 2007-01-01 3715803 2008-01-01 5671235 2009-01-01 5518472 2010-01-01 4344892 2011-01-01 6366705 2012-01-01 6208172 2013-01-01 4400645 2014-01-01 1931799 2015-01-01 2692310 2016-01-01 12366871