Year	Dollars
1992-01-01	1465616
1997-01-01	2776406
2002-01-01	4551564
2003-01-01	6213060
2004-01-01	7167258
2005-01-01	5625821
2006-01-01	15399574
2007-01-01	28606258
2008-01-01	20277132
2009-01-01	19876492
2010-01-01	12278508
2011-01-01	10019983
2012-01-01	14599453
2013-01-01	23371048
2014-01-01	20033572
2015-01-01	25483392
2016-01-01	17270704