Year Dollars 2002-01-01 123566 2003-01-01 3173178 2004-01-01 2673265 2005-01-01 1669168 2006-01-01 4215997 2007-01-01 6954630 2008-01-01 9495289 2009-01-01 11700832 2010-01-01 20361784 2011-01-01 26656625 2012-01-01 16922303 2013-01-01 6671061 2014-01-01 7356968 2015-01-01 4402378 2016-01-01 5015232