Year	Dollars
1992-01-01	203785145
1997-01-01	321620225
2002-01-01	420878037
2003-01-01	329703894
2004-01-01	400174058
2005-01-01	428663209
2006-01-01	487220378
2007-01-01	504808940
2008-01-01	601435482
2009-01-01	445827774
2010-01-01	425405228
2011-01-01	481659027
2012-01-01	488418946
2013-01-01	453460354
2014-01-01	454598211
2015-01-01	459922541
2016-01-01	466163806