Year	Dollars
1992-01-01	10221153
1997-01-01	8664296
2002-01-01	54889017
2003-01-01	57377386
2004-01-01	80866057
2005-01-01	93786994
2006-01-01	145436026
2007-01-01	229235839
2008-01-01	215506522
2009-01-01	163441553
2010-01-01	193360789
2011-01-01	244964480
2012-01-01	261763773
2013-01-01	262213071
2014-01-01	227067680
2015-01-01	179938968
2016-01-01	169623732