Year	Dollars
1992-01-01	188621272
1997-01-01	137658788
2002-01-01	1360886537
2003-01-01	1604173916
2004-01-01	1481335867
2005-01-01	1616652935
2006-01-01	3584735699
2007-01-01	3260602282
2008-01-01	3105821366
2009-01-01	1772228352
2010-01-01	1778826812
2011-01-01	1947793033
2012-01-01	2540115876
2013-01-01	2226610266
2014-01-01	2157919672
2015-01-01	2474760986
2016-01-01	3189780799