Year Dollars 1992-01-01 1722799 1997-01-01 4034895 2002-01-01 4426198 2003-01-01 7165370 2004-01-01 4827190 2005-01-01 16721158 2007-01-01 3530640 2008-01-01 4518367 2009-01-01 3475754 2010-01-01 8348006 2011-01-01 9004493 2012-01-01 7154485 2013-01-01 4913040 2014-01-01 7528212 2015-01-01 2750858 2016-01-01 3544117