Year	Dollars
1997-01-01	868046
2003-01-01	7381528
2004-01-01	12693487
2005-01-01	6189249
2006-01-01	7557828
2007-01-01	17187016
2008-01-01	25624830
2009-01-01	22627120
2010-01-01	15696216
2011-01-01	12901332
2012-01-01	16235112
2013-01-01	31493527
2014-01-01	39702551
2015-01-01	41121016
2016-01-01	24519884