Year	Dollars
1992-01-01	2063411120
1997-01-01	4339165757
2002-01-01	1189060364
2003-01-01	1421654144
2004-01-01	994235720
2005-01-01	850744548
2006-01-01	935184260
2007-01-01	1887140096
2008-01-01	1442235989
2009-01-01	1369071798
2010-01-01	1240390251
2011-01-01	2004540269
2012-01-01	1587825097
2013-01-01	2681083892
2014-01-01	2520401120
2015-01-01	2509125993
2016-01-01	3544864767