Year Dollars 1992-01-01 27545575 1997-01-01 16213792 2002-01-01 13069522 2003-01-01 14266382 2004-01-01 21429615 2006-01-01 39371233 2007-01-01 48937521 2008-01-01 106332393 2009-01-01 107164670 2012-01-01 139430097 2013-01-01 126595114 2014-01-01 71827055 2015-01-01 45210947 2016-01-01 34775621