Year	Dollars
1992-01-01	16907115
1997-01-01	18309249
2002-01-01	19218645
2003-01-01	25412742
2004-01-01	32485495
2005-01-01	30397722
2006-01-01	39009381
2007-01-01	50601799
2008-01-01	85088988
2009-01-01	77742737
2010-01-01	96488354
2011-01-01	163816632
2012-01-01	175510189
2013-01-01	130045564
2014-01-01	188888141
2015-01-01	213327409
2016-01-01	182004475