Year Dollars 1997-01-01 56286075 2002-01-01 30411754 2003-01-01 24976123 2004-01-01 36235523 2005-01-01 47878336 2006-01-01 28366237 2007-01-01 38720952 2008-01-01 48333200 2009-01-01 68515062 2010-01-01 151287860 2011-01-01 92959441 2012-01-01 82611868 2013-01-01 100597678 2014-01-01 95569839 2015-01-01 96311597 2016-01-01 74050797