Year Dollars 1997-01-01 2439659 2003-01-01 42602 2004-01-01 475213 2005-01-01 454344 2006-01-01 670377 2007-01-01 2295725 2008-01-01 3718105 2009-01-01 955192 2013-01-01 229607 2014-01-01 831978 2015-01-01 834905 2016-01-01 426487