Quarter	US Dollars, Sum Over Component Sub-periods
1988-01-01	-104430000.00000000
1988-04-01	144360000.00000000
1988-07-01	1800300000.00000000
1988-10-01	257850000.00000003
1989-01-01	-453910000.00000000
1989-04-01	910080000.00000000
1989-07-01	-1207680000.00000000
1989-10-01	802340000.00000000
1990-01-01	-432780000.00000000
1990-04-01	-34870000.00000000
1990-07-01	-1971430000.00000000
1990-10-01	1432940000.00000000
1991-01-01	-1690700000.00000000
1991-04-01	-374210000.00000000
1991-07-01	-1358520000.00000000
1991-10-01	-1784690000.00000000
1992-01-01	-288760000.00000000
1992-04-01	-1143950000.00000000
1992-07-01	-367090000.00000000
1992-10-01	627550000.00000000
1993-01-01	-2304120000.00000000
1993-04-01	-1294780000.00000000
1993-07-01	-396680000.00000000
1993-10-01	509490000.00000000
1994-01-01	-266589999.99999997
1994-04-01	-1435760000.00000000
1994-07-01	-904310000.00000000
1994-10-01	-1229370000.00000000
1995-01-01	172400000.00000000
1995-04-01	-1448620000.00000000
1995-07-01	-933120000.00000000
1995-10-01	186600000.00000000
1996-01-01	-1259890000.00000000
1996-04-01	-338630000.00000000
1996-07-01	-1626710000.00000000
1996-10-01	-1132290000.00000000
1997-01-01	57900000.00000000
1997-04-01	-1987170000.00000000
1997-07-01	-3762930000.00000000
1997-10-01	-1507270000.00000000
1998-01-01	-2610500000.00000000
1998-04-01	-5632560000.00000000
1998-07-01	-1304130000.00000000
1998-10-01	-1508970000.00000000
1999-01-01	-500640000.00000000
1999-04-01	4691970000.00000000
1999-07-01	-975260000.00000000
1999-10-01	-3024400000.00000000
2000-01-01	1986380000.00000000
2000-04-01	-259620000.00000000
2000-07-01	-3065290000.00000000
2000-10-01	2412830000.00000000
2001-01-01	-9268020000.00000000
2001-04-01	11360000.00000000
2001-07-01	603500000.00000000
2001-10-01	1731320000.00000000
2002-01-01	-824030000.00000000
2002-04-01	-443250000.00000000
2002-07-01	-2292980000.00000000
2002-10-01	998470000.00000000
2003-01-01	-128820000.00000000
2003-04-01	-870090000.00000000
2003-07-01	4151420000.00000000
2003-10-01	4408590000.00000000
2004-01-01	372540000.00000000
2004-04-01	-4235240000.00000000
2004-07-01	2120120000.00000000
2004-10-01	-632160000.00000000
2005-01-01	-1645940000.00000000
2005-04-01	-429150000.00000000
2005-07-01	-3275580000.00000000
2005-10-01	-15800640000.00000000
2006-01-01	5172460000.00000000
2006-04-01	11983140000.00000000
2006-07-01	-11013340000.00000000
2006-10-01	-9605920000.00000000
2007-01-01	-15341360000.00000000
2007-04-01	2045040000.00000000
2007-07-01	-162240000.00000000
2007-10-01	-38619190000.00000000
2008-01-01	12144470000.00000000
2008-04-01	-36349090000.00000000
2008-07-01	-38649860000.00000000
2008-10-01	-16028380000.00000000
2009-01-01	16229410000.00000000
2009-04-01	4649260000.00000000
2009-07-01	-20881330000.00000000
2009-10-01	-3185200000.00000000
2010-01-01	5749560000.00000000
2010-04-01	-9038390000.00000000
2010-07-01	-6674960000.00000000
2010-10-01	-13026200000.00000000
2011-01-01	-12816370000.00000000
2011-04-01	-4585600000.00000000
2011-07-01	-18177630000.00000000