Year	Dollars
1997-01-01	2776134
2002-01-01	7643543
2003-01-01	5678401
2004-01-01	10234435
2005-01-01	9584422
2006-01-01	12103809
2007-01-01	34809276
2008-01-01	24932072
2009-01-01	20761488
2010-01-01	17438971
2011-01-01	43829214
2012-01-01	42807855
2013-01-01	50390777
2014-01-01	48469998
2015-01-01	22832575
2016-01-01	29561760