Year	Dollars
1997-01-01	3252227
2002-01-01	1845920
2003-01-01	3119581
2004-01-01	3147306
2005-01-01	2309297
2006-01-01	3640275
2007-01-01	4892683
2008-01-01	5554283
2009-01-01	4518588
2010-01-01	3787468
2011-01-01	6798463
2012-01-01	5851580
2013-01-01	15092137
2014-01-01	16817154
2015-01-01	9004797
2016-01-01	6627976