Year Dollars 1992-01-01 22388202 1997-01-01 13977273 2002-01-01 47369480 2003-01-01 29131557 2004-01-01 40010941 2005-01-01 37876739 2006-01-01 39780912 2007-01-01 104752271 2008-01-01 165531566 2009-01-01 125550111 2010-01-01 131554258 2011-01-01 115260218 2012-01-01 84412701 2013-01-01 98986322 2014-01-01 54304615 2015-01-01 40631097 2016-01-01 79329876