Year	Dollars
1992-01-01	1084374
1997-01-01	3449972
2002-01-01	5124043
2003-01-01	9985450
2004-01-01	3132072
2005-01-01	9891345
2006-01-01	18257926
2007-01-01	13711662
2008-01-01	29961556
2009-01-01	15113335
2010-01-01	20126530
2011-01-01	33711953
2012-01-01	14324899
2013-01-01	20212659
2014-01-01	20992632
2015-01-01	13290289
2016-01-01	17558657