Year	Dollars
1992-01-01	1757860
1997-01-01	5343559
2002-01-01	5158651
2003-01-01	4120546
2004-01-01	4437206
2005-01-01	6622503
2006-01-01	7802307
2007-01-01	14389470
2008-01-01	14805604
2009-01-01	15239687
2010-01-01	12459837
2011-01-01	17113765
2012-01-01	17179051
2013-01-01	19311486
2014-01-01	22327188
2015-01-01	24878395
2016-01-01	17828103