Year	Dollars
1992-01-01	11738916
1997-01-01	76534734
2002-01-01	35590158
2003-01-01	41887145
2004-01-01	81274885
2005-01-01	102767300
2006-01-01	193760548
2007-01-01	254890770
2008-01-01	299427189
2009-01-01	222534588
2010-01-01	422704700
2011-01-01	518269895
2012-01-01	702738642
2013-01-01	648770296
2014-01-01	394309304
2015-01-01	312826199
2016-01-01	430855952