Year Dollars 2006-01-01 57161 2007-01-01 118978 2008-01-01 340796 2009-01-01 304418 2010-01-01 958615 2012-01-01 766284 2013-01-01 461601 2014-01-01 177387 2015-01-01 105381 2016-01-01 320868