Year	Dollars
1992-01-01	27941779
1997-01-01	17422638
2002-01-01	182351359
2005-01-01	144354109
2007-01-01	144849492
2008-01-01	140748654
2009-01-01	72555406
2010-01-01	40155519
2011-01-01	49300596
2012-01-01	18993583
2013-01-01	14491880
2014-01-01	14252407
2015-01-01	18008597
2016-01-01	21728520