Year	US Dollars, Sum Over Component Sub-periods
1994-01-01	375000000
1995-01-01	935750000
1996-01-01	1398500000
1997-01-01	1124750000
2004-01-01	-377980000
2005-01-01	1317810000
2006-01-01	547110000
2007-01-01	563330000
2008-01-01	854500000
2009-01-01	657250000
2010-01-01	2776750000
2011-01-01	2882500000
2012-01-01	3429000000
2013-01-01	3692000000