Year Dollars 1992-01-01 110120613 1997-01-01 204257742 2002-01-01 190165450 2003-01-01 231361079 2004-01-01 233619240 2005-01-01 241053252 2006-01-01 177344026 2007-01-01 290895873 2008-01-01 402352805 2009-01-01 174515124 2010-01-01 330063537 2011-01-01 314251087 2012-01-01 277146700 2013-01-01 301460906 2014-01-01 331541966 2015-01-01 286583140 2016-01-01 224703982