Year	Dollars
1992-01-01	1285167680
1997-01-01	2122092734
2002-01-01	2011330168
2003-01-01	1640740885
2004-01-01	1940267436
2005-01-01	1778887091
2006-01-01	2476210867
2007-01-01	2881198197
2008-01-01	3338527255
2009-01-01	1826385853
2010-01-01	2673132580
2011-01-01	2947375100
2012-01-01	3163260950
2013-01-01	2587264065
2014-01-01	2455368823
2015-01-01	4001507976
2016-01-01	3795930452