Year	Dollars
1992-01-01	121346928
1997-01-01	133463781
2002-01-01	163926850
2003-01-01	342899748
2004-01-01	265046493
2005-01-01	261457792
2006-01-01	220682020
2007-01-01	200634273
2008-01-01	436939425
2009-01-01	356404071
2010-01-01	460380653
2011-01-01	547871658
2012-01-01	421244038
2013-01-01	1266158336
2014-01-01	792755325
2015-01-01	1007901500
2016-01-01	1757454774