Year	Dollars
1992-01-01	20759268
1997-01-01	14560180
2002-01-01	4031397
2003-01-01	7605562
2004-01-01	3362466
2005-01-01	2534250
2006-01-01	6960107
2007-01-01	11709496
2008-01-01	17347012
2009-01-01	25826004
2010-01-01	11266942
2011-01-01	20596158
2013-01-01	13198117
2014-01-01	9114312
2015-01-01	23425048
2016-01-01	17785693