Year Dollars 1992-01-01 12411753 1997-01-01 20810654 2002-01-01 22240298 2003-01-01 18678888 2004-01-01 22473120 2005-01-01 18955696 2006-01-01 37008468 2007-01-01 25643885 2008-01-01 29735601 2009-01-01 33792428 2010-01-01 50973116 2011-01-01 52753751 2012-01-01 76043109 2013-01-01 80520845 2014-01-01 130603545 2015-01-01 63690346 2016-01-01 89396870