Year	Dollars
1997-01-01	728464
2002-01-01	337636
2003-01-01	420540
2004-01-01	486583
2011-01-01	37107715
2013-01-01	28705467
2014-01-01	20601242
2015-01-01	4696221
2016-01-01	3173921