Year Dollars 1992-01-01 6057119 1997-01-01 11276299 2002-01-01 17570537 2003-01-01 15982943 2004-01-01 21699964 2005-01-01 25005454 2006-01-01 38318219 2007-01-01 54359452 2008-01-01 55708238 2009-01-01 39290091 2010-01-01 42502792 2011-01-01 54831868 2012-01-01 46964519 2013-01-01 83428274 2014-01-01 98549513 2015-01-01 92907893 2016-01-01 83936842