Year	Dollars
1992-01-01	29534038
1997-01-01	52521941
2002-01-01	61355071
2003-01-01	76333143
2004-01-01	82736823
2005-01-01	102813288
2006-01-01	161804617
2007-01-01	254777100
2008-01-01	327862587
2009-01-01	267915094
2010-01-01	307666648
2011-01-01	376379429
2012-01-01	542462018
2013-01-01	466331852
2014-01-01	422354884
2015-01-01	415189046
2016-01-01	365588567