Year	Dollars
1997-01-01	10396470
2002-01-01	25670136
2003-01-01	36973474
2004-01-01	52173751
2005-01-01	118169168
2006-01-01	65448781
2007-01-01	64461907
2008-01-01	74647558
2009-01-01	75652747
2010-01-01	68305372
2011-01-01	77137712
2012-01-01	101516958
2013-01-01	152259835
2014-01-01	141138949
2015-01-01	90898483
2016-01-01	148654298