Year	Dollars
1992-01-01	1604224532
1997-01-01	1307955328
2002-01-01	1008389182
2003-01-01	708759995
2004-01-01	852558507
2005-01-01	914269329
2006-01-01	982284129
2007-01-01	954232960
2008-01-01	1086189729
2009-01-01	787095797
2010-01-01	1973541990
2011-01-01	2414053430
2012-01-01	2652418908
2013-01-01	1995016617
2014-01-01	1347596437
2015-01-01	1901743160
2016-01-01	1155779904