Year	Dollars
1992-01-01	3549064
1997-01-01	4806363
2002-01-01	3413676
2003-01-01	4649799
2004-01-01	5992563
2005-01-01	7737066
2006-01-01	9243427
2007-01-01	13094522
2008-01-01	18789886
2009-01-01	13015128
2010-01-01	22688306
2011-01-01	26875812
2012-01-01	42636144
2013-01-01	57418600
2014-01-01	43922142
2015-01-01	47852372
2016-01-01	44938835