Year	Dollars
1992-01-01	5755960
1997-01-01	2931544
2002-01-01	1196824
2003-01-01	3053809
2004-01-01	4798643
2005-01-01	1627084
2006-01-01	2513950
2007-01-01	3484311
2008-01-01	7339375
2009-01-01	9687927
2010-01-01	7950954
2011-01-01	8301955
2012-01-01	15337360
2013-01-01	17176835
2014-01-01	20617141
2015-01-01	16254486
2016-01-01	21090583