Year Dollars 1992-01-01 36270999 1997-01-01 107466895 2002-01-01 81452484 2003-01-01 90078978 2004-01-01 133832819 2005-01-01 163289005 2006-01-01 203911712 2007-01-01 299977544 2008-01-01 356852919 2009-01-01 265361137 2010-01-01 298446427 2011-01-01 449142606 2012-01-01 393735228 2013-01-01 438551192 2014-01-01 492371047 2015-01-01 432017136 2016-01-01 415929297