Year Dollars 2004-01-01 5433800 2005-01-01 6329536 2006-01-01 1811075 2007-01-01 5620295 2008-01-01 19528238 2009-01-01 18365621 2010-01-01 63614157 2011-01-01 40478215 2012-01-01 44804026 2013-01-01 29990597 2014-01-01 30388866 2015-01-01 6704254 2016-01-01 5847728