Year Dollars 1992-01-01 4128977 1997-01-01 3078976 2002-01-01 5256535 2003-01-01 18001253 2004-01-01 9612929 2005-01-01 16353321 2006-01-01 21672099 2007-01-01 62106236 2008-01-01 75957309 2009-01-01 16924034 2010-01-01 38557378 2011-01-01 78032288 2012-01-01 98952979 2013-01-01 62202548 2014-01-01 448608114 2015-01-01 132761614 2016-01-01 59875607