Year	Dollars
1992-01-01	24935405
1997-01-01	39447987
2002-01-01	23733481
2003-01-01	21576889
2004-01-01	26599998
2005-01-01	56003437
2006-01-01	49455426
2007-01-01	86262584
2008-01-01	79629325
2009-01-01	72143747
2010-01-01	147955470
2011-01-01	116111217
2012-01-01	151784081
2013-01-01	743010603
2014-01-01	777227155
2015-01-01	432242943
2016-01-01	424422475