Year	Dollars
1992-01-01	1905364
1997-01-01	3157812
2002-01-01	9270294
2003-01-01	13665421
2004-01-01	13640811
2005-01-01	6332530
2006-01-01	12398221
2007-01-01	9238226
2008-01-01	4546675
2009-01-01	2531295
2010-01-01	13086973
2011-01-01	33863500
2013-01-01	8327515
2014-01-01	10505216
2015-01-01	8030242
2016-01-01	6553746