Year	Dollars
1992-01-01	22749243
1997-01-01	67807596
2002-01-01	52754595
2003-01-01	48313183
2004-01-01	35288899
2005-01-01	48090229
2006-01-01	103829722
2007-01-01	113485303
2008-01-01	212071858
2009-01-01	167799170
2010-01-01	232101587
2011-01-01	345054806
2012-01-01	435789723
2013-01-01	445007523
2014-01-01	368329662
2015-01-01	366363743
2016-01-01	268617870