Year Dollars 2002-01-01 571682 2004-01-01 836475 2007-01-01 5643146 2008-01-01 8338689 2009-01-01 9407098 2010-01-01 2149010 2011-01-01 2484469 2012-01-01 2120728 2016-01-01 350827