Year	Dollars
1997-01-01	1303132
2002-01-01	1546927
2003-01-01	3240106
2004-01-01	1758568
2005-01-01	2234220
2006-01-01	2608900
2007-01-01	5937357
2008-01-01	8883141
2009-01-01	5953521
2010-01-01	10397334
2011-01-01	15488726
2012-01-01	11185303
2013-01-01	11589151
2014-01-01	13682132
2015-01-01	8470701
2016-01-01	3125814