Year	Dollars
1997-01-01	1405700
2002-01-01	4301625
2003-01-01	5464475
2004-01-01	7031057
2005-01-01	6650672
2006-01-01	8927792
2007-01-01	15861165
2008-01-01	14425193
2009-01-01	15555384
2010-01-01	24745441
2011-01-01	25788253
2012-01-01	28525476
2013-01-01	25527515
2014-01-01	47514854
2015-01-01	62559358
2016-01-01	84547713