Year Dollars 2002-01-01 337829 2007-01-01 559260 2009-01-01 920216 2010-01-01 1662084 2011-01-01 1414429 2012-01-01 1217555 2013-01-01 1508338 2014-01-01 5537844 2015-01-01 2575277 2016-01-01 1037954