Year	Dollars
1992-01-01	8877415
1997-01-01	21507621
2002-01-01	20017530
2003-01-01	23225571
2004-01-01	46250589
2005-01-01	50052355
2006-01-01	46751453
2007-01-01	76247811
2008-01-01	89034210
2009-01-01	58274082
2010-01-01	82581076
2011-01-01	131930769
2012-01-01	119559293
2013-01-01	115917553
2014-01-01	151421009
2015-01-01	159136224
2016-01-01	150626873