Year Dollars 1992-01-01 1391290 1997-01-01 3858135 2002-01-01 1604759 2003-01-01 1788495 2004-01-01 1341013 2005-01-01 1400498 2006-01-01 4434105 2007-01-01 5920768 2008-01-01 3826928 2009-01-01 4003999 2010-01-01 6310856 2011-01-01 7045137 2012-01-01 9125045 2013-01-01 6487151 2014-01-01 7304070 2015-01-01 6894860 2016-01-01 5703228