Year Dollars 1992-01-01 27297492 1997-01-01 31054562 2002-01-01 31009206 2003-01-01 22746830 2004-01-01 32266142 2005-01-01 34813665 2006-01-01 46493947 2007-01-01 57335942 2008-01-01 54690301 2009-01-01 38035845 2010-01-01 55215096 2011-01-01 83783150 2012-01-01 74469138 2013-01-01 89115398 2014-01-01 83184863 2015-01-01 69737846 2016-01-01 67632148