Year Dollars 1992-01-01 68334 1997-01-01 182458 2006-01-01 65180 2007-01-01 92772 2008-01-01 106563 2009-01-01 57768 2010-01-01 24632 2011-01-01 34404 2012-01-01 41740 2013-01-01 151009 2014-01-01 63754 2015-01-01 22257 2016-01-01 317458