Year	Dollars
1992-01-01	82719229
1997-01-01	122284808
2002-01-01	163918188
2003-01-01	332072749
2004-01-01	299081990
2005-01-01	413293804
2006-01-01	594139204
2007-01-01	714113442
2008-01-01	1254541447
2009-01-01	926667566
2010-01-01	1748634849
2011-01-01	2123284575
2012-01-01	2383835152
2013-01-01	2467953728
2014-01-01	3208705635
2016-01-01	1095823677