Year Dollars 1992-01-01 22831012 1997-01-01 41126167 2002-01-01 44618002 2003-01-01 38315585 2004-01-01 38771990 2005-01-01 64282571 2006-01-01 82925113 2007-01-01 130583836 2008-01-01 141475053 2009-01-01 152599215 2010-01-01 204971840 2011-01-01 188327098 2012-01-01 231359496 2013-01-01 133274052 2014-01-01 119133279 2015-01-01 91366337 2016-01-01 84440984