Year Dollars 1992-01-01 946146 1997-01-01 8775426 2002-01-01 364825 2003-01-01 306320 2004-01-01 410032 2005-01-01 829448 2006-01-01 1497285 2007-01-01 2385995 2008-01-01 1601639 2009-01-01 3140323 2010-01-01 5274054 2011-01-01 6435493 2012-01-01 5110273 2013-01-01 7099972 2014-01-01 5971945 2015-01-01 6319272 2016-01-01 2204506