Year Dollars 1992-01-01 99653 1997-01-01 140326 2006-01-01 122209976 2007-01-01 270493091 2008-01-01 735953109 2009-01-01 362433572 2010-01-01 232897303 2011-01-01 780925294 2012-01-01 484640574 2013-01-01 1091184360 2014-01-01 530390244 2015-01-01 338264305 2016-01-01 292432706