Year Dollars 1992-01-01 26582117 2004-01-01 36519214 2005-01-01 6124056 2006-01-01 19266433 2007-01-01 20408603 2008-01-01 27182267 2009-01-01 22242534 2010-01-01 15277022 2011-01-01 17621802 2012-01-01 50456992 2013-01-01 28336042 2014-01-01 46664451 2015-01-01 41647843 2016-01-01 22760756