Year	Dollars
1992-01-01	86634745
1997-01-01	407098153
2002-01-01	180218486
2003-01-01	169422537
2004-01-01	172292050
2005-01-01	161324434
2006-01-01	137137568
2007-01-01	283645478
2008-01-01	390581820
2009-01-01	376872622
2010-01-01	335918385
2011-01-01	210256912
2012-01-01	194460317
2013-01-01	238389692
2014-01-01	273261944
2015-01-01	301076091
2016-01-01	294042082