Year	Dollars
1997-01-01	1711694
2002-01-01	2288787
2003-01-01	3625627
2004-01-01	5522966
2005-01-01	13146617
2006-01-01	8875626
2007-01-01	20533197
2008-01-01	7353969
2009-01-01	14923568
2010-01-01	10023101
2011-01-01	19014338
2012-01-01	10095141
2013-01-01	17387146
2014-01-01	11207562
2015-01-01	5938742
2016-01-01	7883319