Year Dollars 1992-01-01 3588333 1997-01-01 6352364 2002-01-01 20881907 2003-01-01 15508682 2004-01-01 16422083 2005-01-01 141570864 2006-01-01 60990461 2007-01-01 107481224 2008-01-01 170270246 2009-01-01 86838238 2010-01-01 99816938 2011-01-01 54806554 2012-01-01 92772555 2013-01-01 187026002 2014-01-01 95466016 2015-01-01 166938144 2016-01-01 77697746