Year	Dollars
1992-01-01	18545355
1997-01-01	44999837
2002-01-01	48762325
2003-01-01	45431298
2004-01-01	53643425
2005-01-01	58896182
2006-01-01	57100982
2007-01-01	69318927
2008-01-01	139790504
2009-01-01	197151851
2010-01-01	206792502
2011-01-01	287393735
2012-01-01	302320041
2013-01-01	323732427
2014-01-01	342690205
2015-01-01	312729944