Quarter	US Dollars, Sum Over Component Sub-periods
1995-01-01	245000000
1995-04-01	-219000000
1995-07-01	111000000
1995-10-01	-240000000
1996-01-01	89000000
1996-04-01	-126000000
1996-07-01	150000000
1996-10-01	-49000000
1997-01-01	-39000000
1997-04-01	-67000000
1997-07-01	70000000
1997-10-01	90000000
1998-01-01	-124000000
1998-04-01	-67000000
1998-07-01	127000000
1998-10-01	-91000000
1999-01-01	-69000000
1999-04-01	-634000000
1999-07-01	11000000
1999-10-01	-182000000
2000-01-01	-220000000
2000-04-01	-135000000
2000-07-01	-160000000
2000-10-01	-121000000
2001-01-01	63000000
2001-04-01	-93000000
2001-07-01	90000000
2001-10-01	-19000000
2002-01-01	15000000
2002-04-01	56000000
2002-07-01	202000000
2002-10-01	-23000000
2003-01-01	-86000000
2003-04-01	-70000000
2003-07-01	45000000
2003-10-01	-117000000
2004-01-01	-84000000
2004-04-01	-282000000
2004-07-01	-181000000
2004-10-01	-352000000
2005-01-01	-183000000
2005-04-01	71000000
2005-07-01	46000000
2005-10-01	-538000000
2006-01-01	-122000000
2006-04-01	212000000
2006-07-01	-252000000
2006-10-01	-534000000
2007-01-01	-121000000
2007-04-01	-313000000
2007-07-01	-669000000
2007-10-01	-913000000
2008-01-01	-554000000
2008-04-01	-652000000
2008-07-01	-961000000
2008-10-01	-788000000
2009-01-01	-207000000
2009-04-01	216000000
2009-07-01	-305000000
2009-10-01	61000000
2010-01-01	77000000
2010-04-01	-85000000
2010-07-01	-24000000
2010-10-01	-28000000
2011-01-01	99000000
2011-04-01	173000000
2011-07-01	-66000000
2011-10-01	1000000
2012-01-01	31000000
2012-04-01	309000000
2012-07-01	360000000
2012-10-01	615000000
2013-01-01	658000000
2013-04-01	792000000
2013-07-01	661000000
2013-10-01	676000000
2014-01-01	501000000
2014-04-01	827000000