Year	Dollars
1992-01-01	108753709
1997-01-01	241698914
2002-01-01	142696790
2003-01-01	140888545
2004-01-01	65646683
2005-01-01	72192197
2006-01-01	238101037
2007-01-01	202169547
2008-01-01	458136692
2009-01-01	374284102
2010-01-01	224623840
2011-01-01	645395266
2012-01-01	136611900
2013-01-01	424721521
2014-01-01	196465139
2015-01-01	107646534
2016-01-01	167581848