Year Dollars 1992-01-01 1220471 1997-01-01 1203707 2002-01-01 686390 2003-01-01 473919 2004-01-01 1086068 2005-01-01 815645 2006-01-01 1601467 2007-01-01 5516981 2008-01-01 2608772 2009-01-01 2876835 2010-01-01 4030957 2011-01-01 3821110 2012-01-01 4514365 2013-01-01 7703760 2014-01-01 5161294 2015-01-01 5434474 2016-01-01 2956543