Year Dollars 1992-01-01 242722 1997-01-01 1430942 2002-01-01 610836 2003-01-01 423133 2004-01-01 3335865 2005-01-01 853730 2006-01-01 1468451 2007-01-01 4751438 2008-01-01 3685705 2009-01-01 3813901 2010-01-01 4113297 2011-01-01 6635243 2012-01-01 4319131 2013-01-01 4334426 2014-01-01 8488523 2015-01-01 3801148 2016-01-01 5116529