Year Dollars 2006-01-01 62195 2007-01-01 192007 2009-01-01 212724 2010-01-01 185807 2011-01-01 137588 2012-01-01 262116 2013-01-01 580360 2014-01-01 237104 2015-01-01 394226 2016-01-01 496701