Year	Dollars
1992-01-01	3112337
1997-01-01	13081218
2002-01-01	36348936
2003-01-01	24282132
2004-01-01	31586554
2005-01-01	30932547
2006-01-01	41258044
2007-01-01	49888064
2008-01-01	59123519
2009-01-01	48737953
2010-01-01	97905559
2011-01-01	108287515
2012-01-01	111321587
2013-01-01	130579300
2014-01-01	140163786
2015-01-01	149117272
2016-01-01	171084184