Year Dollars 2004-01-01 15431354 2005-01-01 7147470 2006-01-01 18917029 2007-01-01 10169877 2008-01-01 10774280 2009-01-01 10182786 2010-01-01 22289410 2011-01-01 22845196 2012-01-01 5253716 2013-01-01 24504756 2014-01-01 30190204 2015-01-01 12845751 2016-01-01 26684066