Quarter	US Dollars, Sum Over Component Sub-periods
1997-01-01	542690000.00000000
1997-04-01	545230000.00000000
1997-07-01	530809999.99999994
1997-10-01	1173000000.00000000
1998-01-01	3688600000.00000000
1998-04-01	768990000.00000000
1998-07-01	372570000.00000000
1998-10-01	1841250000.00000000
1999-01-01	1575460000.00000000
1999-04-01	2976080000.00000000
1999-07-01	5438650000.00000000
1999-10-01	6077700000.00000000
2000-01-01	3944160000.00000000
2000-04-01	24877640000.00000000
2000-07-01	3125670000.00000000
2000-10-01	3547500000.00000000
2001-01-01	4357520000.00000000
2001-04-01	-685380000.00000000
2001-07-01	1604450000.00000000
2001-10-01	1968550000.00000000
2002-01-01	1545720000.00000000
2002-04-01	-243760000.00000000
2002-07-01	3332970000.00000000
2002-10-01	1782580000.00000000
2003-01-01	789780000.00000000
2003-04-01	1452450000.00000000
2003-07-01	-1598340000.00000000
2003-10-01	538890000.00000000
2004-01-01	-949620000.00000000
2004-04-01	-10928440000.00000000
2004-07-01	-219300000.00000000
2004-10-01	3283040000.00000000
2005-01-01	2400950000.00000000
2005-04-01	4520250000.00000000
2005-07-01	1918790000.00000000
2005-10-01	4014620000.00000000
2006-01-01	4079400000.00000000
2006-04-01	246360000.00000000
2006-07-01	4860670000.00000000
2006-10-01	-6762300000.00000000
2007-01-01	2052360000.00000020
2007-04-01	4453530000.00000000
2007-07-01	2726120000.00000000
2007-10-01	2578230000.00000000
2008-01-01	2977210000.00000000
2008-04-01	767030000.00000000
2008-07-01	911190000.00000000
2008-10-01	-2053020000.00000000
2009-01-01	1636560000.00000000
2009-04-01	-861140000.00000000
2009-07-01	3837260000.00000000
2009-10-01	-695510000.00000000
2010-01-01	-1868360000.00000000
2010-04-01	-715820000.00000000
2010-07-01	-1154410000.00000000
2010-10-01	-8018590000.00000000
2011-01-01	-2580540000.00000000
2011-04-01	8214920000.00000000
2011-07-01	6938010000.00000000
2011-10-01	544890000.00000000
2012-01-01	-2235860000.00000000
2012-04-01	957230000.00000000
2012-07-01	272470000.00000000
2012-10-01	2276110000.00000000
2013-01-01	973330000.00000000
2013-04-01	2623130000.00000000
2013-07-01	-1111110000.00000000
2013-10-01	-1030280000.00000000
2014-01-01	-2690540000.00000000
2014-04-01	-3723520000.00000000