Year	Dollars
1992-01-01	1312013
1997-01-01	4099589
2002-01-01	14144677
2003-01-01	15153843
2004-01-01	9788695
2005-01-01	13966161
2006-01-01	13967367
2007-01-01	19237270
2008-01-01	37358089
2009-01-01	18734524
2010-01-01	33478099
2011-01-01	42768220
2012-01-01	81282568
2013-01-01	47991790
2014-01-01	60961476
2015-01-01	40784598
2016-01-01	32264099