Year Dollars 1992-01-01 991444 1997-01-01 2012960 2002-01-01 2036549 2003-01-01 2979173 2004-01-01 3636868 2005-01-01 4765914 2006-01-01 5113205 2007-01-01 6378381 2008-01-01 6985870 2009-01-01 7782831 2010-01-01 12170649 2011-01-01 8338692 2012-01-01 7391312 2013-01-01 8375575 2014-01-01 7880130 2015-01-01 4809175 2016-01-01 7610400