Year	Dollars
1997-01-01	14595508
2002-01-01	4806984
2003-01-01	3425239
2004-01-01	5027681
2005-01-01	3375270
2006-01-01	16639589
2007-01-01	22961989
2008-01-01	18872553
2009-01-01	26056542
2010-01-01	24748160
2011-01-01	31807948
2012-01-01	82157112
2013-01-01	65347505
2014-01-01	43670519
2015-01-01	40929103
2016-01-01	31489534