Year	Dollars
1992-01-01	8463207
1997-01-01	19076972
2002-01-01	33675724
2003-01-01	40216385
2004-01-01	34064905
2005-01-01	24665221
2006-01-01	35298583
2007-01-01	47623678
2008-01-01	92138209
2009-01-01	71019284
2010-01-01	114359236
2011-01-01	127709360
2012-01-01	152574336
2013-01-01	243396403
2014-01-01	302094059
2015-01-01	237141722
2016-01-01	186572393