Year	Dollars
1997-01-01	4741579
2002-01-01	2688552
2003-01-01	11614942
2004-01-01	19178399
2005-01-01	26732941
2006-01-01	33040760
2007-01-01	40703983
2008-01-01	52684096
2009-01-01	28528667
2010-01-01	27180128
2011-01-01	49646925
2012-01-01	70820430
2013-01-01	39022690
2014-01-01	38522661
2015-01-01	34746942
2016-01-01	14717005