Year	Dollars
1992-01-01	1502515
1997-01-01	2775142
2002-01-01	3933988
2003-01-01	4608177
2004-01-01	5321239
2005-01-01	31296223
2006-01-01	6004141
2007-01-01	6801637
2008-01-01	9271703
2009-01-01	9053198
2010-01-01	12579199
2011-01-01	11565804
2013-01-01	17301870
2015-01-01	15178629