Year	Dollars
1997-01-01	93401973
2002-01-01	3239059
2003-01-01	11841785
2004-01-01	11502254
2005-01-01	20138142
2006-01-01	59837056
2007-01-01	143404229
2008-01-01	45046111
2009-01-01	30854958
2010-01-01	28739759
2011-01-01	17680508
2012-01-01	22485988
2013-01-01	23557542
2014-01-01	13330504
2015-01-01	18573749
2016-01-01	35202153