Year Dollars 1992-01-01 45523569 1997-01-01 37597324 2002-01-01 28094514 2003-01-01 43694684 2004-01-01 35017911 2005-01-01 41562241 2006-01-01 36757388 2007-01-01 36024660 2008-01-01 33927267 2009-01-01 37668134 2010-01-01 34517959 2011-01-01 34500814 2012-01-01 64861062 2013-01-01 47916990 2014-01-01 42325806 2015-01-01 45008423 2016-01-01 58423298