Year	Dollars
1997-01-01	597636
2002-01-01	129788
2003-01-01	242563
2004-01-01	123712
2005-01-01	244162
2006-01-01	1091885
2007-01-01	454199
2008-01-01	2893692
2009-01-01	13743857
2010-01-01	6185612
2011-01-01	12604928
2012-01-01	22374031
2013-01-01	24389517
2014-01-01	22716341
2015-01-01	15789295
2016-01-01	6552077