Year	Dollars
1997-01-01	3608941
2002-01-01	8005358
2003-01-01	8877938
2004-01-01	11471257
2005-01-01	14299764
2006-01-01	17611161
2007-01-01	28369643
2008-01-01	28014948
2009-01-01	34798701
2010-01-01	50390805
2011-01-01	57789006
2012-01-01	59946217
2013-01-01	49053523
2014-01-01	72924447
2015-01-01	61133543
2016-01-01	72409701