Year Dollars 1997-01-01 1865860 2002-01-01 1068054 2003-01-01 1549149 2004-01-01 898710 2005-01-01 1015861 2006-01-01 2509476 2007-01-01 2552837 2008-01-01 3779834 2009-01-01 3466603 2010-01-01 1970974 2011-01-01 2496054 2013-01-01 1868813 2014-01-01 2566969 2015-01-01 1647165 2016-01-01 928667