Year	Dollars
1997-01-01	68712
2002-01-01	1394326
2004-01-01	7430240
2005-01-01	7661227
2006-01-01	3162217
2007-01-01	15872660
2008-01-01	4044016
2009-01-01	6594695
2010-01-01	4188958
2011-01-01	3599546
2012-01-01	2986690
2013-01-01	2740716
2014-01-01	2914568
2015-01-01	2539472
2016-01-01	4054244