Year	Dollars
1992-01-01	10491963
1997-01-01	9664224
2002-01-01	55739521
2003-01-01	17317208
2004-01-01	37718350
2005-01-01	70051758
2006-01-01	119498227
2007-01-01	232383324
2008-01-01	371752762
2009-01-01	88188522
2010-01-01	136679042
2011-01-01	273431075
2012-01-01	328625371
2013-01-01	206845936
2014-01-01	142265994
2015-01-01	37810005
2016-01-01	94586794