Year Dollars 1997-01-01 658850 2002-01-01 620185 2004-01-01 372881 2005-01-01 786852 2009-01-01 2708648 2010-01-01 1309303 2011-01-01 2149029 2012-01-01 2378751 2013-01-01 1597864 2014-01-01 2316829 2015-01-01 2207969 2016-01-01 2992195