Year Dollars 2002-01-01 160800 2004-01-01 58174 2008-01-01 66667 2010-01-01 218187 2011-01-01 63423 2012-01-01 23929 2013-01-01 317714 2014-01-01 1046718 2015-01-01 298256 2016-01-01 35704