Year Dollars 1992-01-01 516374 1997-01-01 400955 2002-01-01 1230358 2003-01-01 3758793 2004-01-01 4556937 2005-01-01 7036409 2006-01-01 2741426 2007-01-01 2110175 2008-01-01 1405395 2009-01-01 1071782 2010-01-01 724708 2011-01-01 381304 2012-01-01 1317235 2013-01-01 1042394 2014-01-01 1323361 2015-01-01 2505124 2016-01-01 4914148