Year Dollars 1992-01-01 6461970 1997-01-01 10885874 2002-01-01 10509599 2003-01-01 11072394 2004-01-01 15218539 2005-01-01 23436519 2006-01-01 14486403 2007-01-01 13460752 2008-01-01 12949868 2009-01-01 8538746 2010-01-01 58649214 2011-01-01 21842160 2012-01-01 17827131 2013-01-01 94111802 2014-01-01 43473288 2015-01-01 17926040 2016-01-01 25144870