Year Dollars 1997-01-01 150734 2003-01-01 507301 2004-01-01 4388255 2005-01-01 1535524 2006-01-01 2954806 2007-01-01 3003305 2008-01-01 1897876 2009-01-01 653759 2010-01-01 518805 2011-01-01 681412 2012-01-01 904998 2013-01-01 360409 2014-01-01 660370 2015-01-01 1224485 2016-01-01 537312