Year Dollars 1997-01-01 4208409 2002-01-01 199590 2003-01-01 105031 2004-01-01 626075 2005-01-01 931104 2006-01-01 2026728 2007-01-01 1452212 2008-01-01 1264520 2009-01-01 724278 2010-01-01 745825 2011-01-01 992160 2012-01-01 2869409 2013-01-01 6155027 2014-01-01 9273671 2015-01-01 4880739 2016-01-01 3547451