Year	Dollars
1997-01-01	539242
2002-01-01	403994
2003-01-01	1132296
2004-01-01	3337827
2005-01-01	1103534
2006-01-01	322197
2007-01-01	466876
2008-01-01	863373
2009-01-01	2387207
2010-01-01	4043331
2011-01-01	8420935
2012-01-01	11329457
2013-01-01	8115619
2014-01-01	8812220
2015-01-01	8919771
2016-01-01	8161449