Year	Dollars
1997-01-01	1395002
2003-01-01	3156594
2004-01-01	5515715
2005-01-01	5573589
2006-01-01	4233094
2007-01-01	4591734
2008-01-01	6268448
2009-01-01	2714725
2010-01-01	35477980
2011-01-01	6086677
2012-01-01	6168905
2013-01-01	6950386
2014-01-01	5634235
2015-01-01	3915176
2016-01-01	4938011