Year Dollars 1992-01-01 294106 1997-01-01 1255394 2002-01-01 577631 2003-01-01 284680 2004-01-01 150724 2005-01-01 50201 2006-01-01 627734 2007-01-01 521665 2008-01-01 137122 2009-01-01 464522 2010-01-01 880590 2011-01-01 1093243 2014-01-01 5798812 2015-01-01 4350693 2016-01-01 4251931