Year	Dollars
1992-01-01	259372438
1997-01-01	380990656
2002-01-01	1060142964
2003-01-01	1350803698
2004-01-01	1756360519
2005-01-01	1986844515
2006-01-01	2021020829
2007-01-01	2384770662
2008-01-01	2640126359
2009-01-01	2310194473
2010-01-01	3214030093
2011-01-01	4212336508
2012-01-01	4011760450
2013-01-01	4538383244
2014-01-01	4100440934
2015-01-01	3575533544
2016-01-01	2669166262