Year	Dollars
1992-01-01	165718918
1997-01-01	525385197
2002-01-01	276008659
2003-01-01	232056732
2004-01-01	231014587
2005-01-01	338943182
2006-01-01	477872354
2007-01-01	421105333
2008-01-01	317810216
2009-01-01	191651069
2010-01-01	319622589
2011-01-01	399701263
2012-01-01	350040400
2013-01-01	348628761
2014-01-01	333289098
2015-01-01	416034657
2016-01-01	531088524