Year Dollars 1997-01-01 1489969 2002-01-01 227305 2004-01-01 805952 2005-01-01 1435110 2006-01-01 3331716 2007-01-01 8222328 2008-01-01 7329967 2009-01-01 996345 2010-01-01 1965726 2011-01-01 9127433 2012-01-01 6298610 2013-01-01 2462553 2014-01-01 2294711 2015-01-01 1562282 2016-01-01 913450