Year	Dollars
1992-01-01	15164666
1997-01-01	40980195
2002-01-01	19068048
2003-01-01	23712367
2004-01-01	22910385
2005-01-01	30689053
2006-01-01	28500306
2007-01-01	31507748
2008-01-01	36814156
2009-01-01	33719325
2010-01-01	30135588
2011-01-01	48161106
2012-01-01	107774759
2013-01-01	76023751
2014-01-01	98275091
2015-01-01	61580836
2016-01-01	53556989