Year	Dollars
2002-01-01	771333
2003-01-01	473758
2004-01-01	491345
2005-01-01	680086
2006-01-01	1398938
2007-01-01	4588897
2008-01-01	9146388
2009-01-01	4568341
2010-01-01	9813352
2011-01-01	5905630
2012-01-01	8458965
2013-01-01	12774428
2014-01-01	12930091
2015-01-01	18287040
2016-01-01	9419948