Year Dollars 2006-01-01 1461772 2007-01-01 326613 2009-01-01 655980 2010-01-01 946504 2011-01-01 1153122 2012-01-01 5161535 2013-01-01 2563240 2014-01-01 1614369 2015-01-01 1622867 2016-01-01 404001