Year	Dollars
1997-01-01	2524264
2002-01-01	6076781
2003-01-01	5288688
2004-01-01	5827646
2005-01-01	9270049
2006-01-01	9281491
2007-01-01	18856309
2008-01-01	25804409
2009-01-01	24348250
2010-01-01	41236538
2011-01-01	52412482
2012-01-01	33532956
2013-01-01	26143498
2014-01-01	28638851
2015-01-01	34391856
2016-01-01	41110226