Year	Dollars
1992-01-01	6118543
1997-01-01	17248490
2002-01-01	40288449
2003-01-01	139998955
2004-01-01	83341111
2005-01-01	123340563
2006-01-01	163016366
2007-01-01	300641299
2008-01-01	316577164
2009-01-01	229879874
2010-01-01	325829066
2011-01-01	336581191
2012-01-01	543798539
2013-01-01	649020273
2014-01-01	386448036
2015-01-01	200505494
2016-01-01	269875582