Year	Dollars
1992-01-01	19879715
1997-01-01	46893766
2002-01-01	5636418
2003-01-01	5770310
2004-01-01	9233761
2005-01-01	14654839
2006-01-01	12177487
2007-01-01	19660286
2008-01-01	22466949
2009-01-01	17673203
2010-01-01	17907169
2011-01-01	20965664
2012-01-01	26753298
2013-01-01	51620906
2014-01-01	64506948
2015-01-01	43204847
2016-01-01	28923012