Year Dollars 2007-01-01 557414 2008-01-01 1853006 2010-01-01 1500853 2011-01-01 3103061 2012-01-01 1739323 2013-01-01 5553774 2014-01-01 2367730 2015-01-01 7810410 2016-01-01 1806027