Year Dollars 1997-01-01 41915 2004-01-01 786880 2005-01-01 2441928 2006-01-01 497895 2007-01-01 940650 2009-01-01 1827109 2010-01-01 2365546 2011-01-01 3040088 2012-01-01 4289374 2013-01-01 3481825 2014-01-01 2671083 2015-01-01 1568091 2016-01-01 711665