Year Dollars 2002-01-01 111010 2004-01-01 49628 2006-01-01 54630 2007-01-01 61360 2008-01-01 146407 2009-01-01 189390 2011-01-01 303014 2012-01-01 277175 2013-01-01 511732 2015-01-01 234136 2016-01-01 422505