Year Dollars 1992-01-01 276482825 1997-01-01 167606274 2002-01-01 87530227 2003-01-01 86790147 2004-01-01 87720851 2005-01-01 159275713 2006-01-01 498409905 2007-01-01 453875935 2008-01-01 551559122 2009-01-01 223819314 2010-01-01 234334133 2011-01-01 279474339 2012-01-01 306642765 2013-01-01 389862923 2014-01-01 362739171 2015-01-01 591587081 2016-01-01 457011110