Year	Dollars
1992-01-01	37596693
1997-01-01	13198651
2002-01-01	50705458
2003-01-01	61833072
2004-01-01	93853158
2005-01-01	126611982
2006-01-01	184378324
2007-01-01	154797494
2008-01-01	153306162
2009-01-01	207197716
2010-01-01	333566265
2011-01-01	283780404
2012-01-01	297299661
2013-01-01	369191686
2014-01-01	371463809
2015-01-01	417409652
2016-01-01	458777226