Year	Dollars
1997-01-01	294138
2002-01-01	408281
2003-01-01	682527
2004-01-01	1160054
2005-01-01	1035384
2006-01-01	1351596
2007-01-01	2137162
2013-01-01	2929046
2014-01-01	4546777
2015-01-01	7107634
2016-01-01	4043931