Year Dollars 2002-01-01 359326 2004-01-01 392831 2006-01-01 1570540 2007-01-01 2376119 2008-01-01 866725 2009-01-01 963684 2010-01-01 171891 2011-01-01 590568 2014-01-01 527182 2015-01-01 998255