Year	Dollars
1997-01-01	17632716
2002-01-01	20260667
2003-01-01	25535078
2004-01-01	257899797
2005-01-01	242346901
2006-01-01	284767335
2007-01-01	302768205
2008-01-01	572760430
2009-01-01	280265866
2010-01-01	337631272
2011-01-01	650541814
2012-01-01	529371669
2013-01-01	555628868
2014-01-01	594118375
2015-01-01	404680392
2016-01-01	266481220