Year	Dollars
1992-01-01	4737318
1997-01-01	9013677
2002-01-01	8549653
2003-01-01	8112570
2004-01-01	12181891
2005-01-01	22754463
2006-01-01	26679404
2007-01-01	27294787
2008-01-01	34865371
2009-01-01	28937888
2010-01-01	55168596
2011-01-01	40270784
2012-01-01	60566085
2013-01-01	67242926
2014-01-01	87112577
2015-01-01	110538289
2016-01-01	181365681