Year	Dollars
1997-01-01	2026787
2002-01-01	7184381
2003-01-01	6621103
2004-01-01	9669288
2005-01-01	10569745
2006-01-01	12997291
2007-01-01	34143451
2008-01-01	27010742
2009-01-01	30184936
2010-01-01	39052374
2011-01-01	54401839
2012-01-01	47930502
2013-01-01	55506736
2014-01-01	51357095
2015-01-01	71964668
2016-01-01	63161540