Year Dollars 1997-01-01 2239745 2003-01-01 159719 2004-01-01 1759250 2005-01-01 1618901 2009-01-01 335921 2010-01-01 645027 2011-01-01 778857 2012-01-01 724029 2013-01-01 988952 2014-01-01 1347449 2015-01-01 1088780 2016-01-01 615963