Year	Dollars
1997-01-01	1652064
2002-01-01	3663450
2003-01-01	6391566
2004-01-01	11630356
2005-01-01	38465026
2006-01-01	11986881
2007-01-01	14229649
2008-01-01	18186035
2009-01-01	39426640
2010-01-01	11689222
2011-01-01	25933388
2012-01-01	25829588
2013-01-01	34662173
2014-01-01	61446924
2015-01-01	22373601
2016-01-01	12435024