Year	Dollars
1997-01-01	1069313
2002-01-01	3449415
2003-01-01	2639500
2004-01-01	4128766
2005-01-01	6810854
2006-01-01	9154851
2007-01-01	8659627
2008-01-01	10805371
2009-01-01	4993874
2010-01-01	4999206
2011-01-01	11831371
2012-01-01	14811016
2013-01-01	25125375
2014-01-01	23711967
2015-01-01	22070329
2016-01-01	12256325