Quarter	Dollars
1976-01-01	509000000
1976-04-01	321000000
1976-07-01	331000000
1976-10-01	705000000
1977-01-01	352000000
1977-04-01	492000000
1977-07-01	510000000
1977-10-01	36000000
1978-01-01	119000000
1978-04-01	335000000
1978-07-01	672000000
1978-10-01	1003000000
1979-01-01	1095000000
1979-04-01	1668000000
1979-07-01	1360000000
1979-10-01	1230000000
1980-01-01	1707700000
1980-04-01	1415500000
1980-07-01	2259900000
1980-10-01	784800000
1981-01-01	1313600000
1981-04-01	1276500000
1981-07-01	439000000
1981-10-01	1613600000
1982-01-01	215200000
1982-04-01	825900000
1982-07-01	540200000
1982-10-01	2630100000
1983-01-01	204400000
1983-04-01	789900000
1983-07-01	681600000
1983-10-01	1061200000
1984-01-01	174400000
1984-04-01	820900000
1984-07-01	691900000
1984-10-01	701000000
1985-01-01	277600000
1985-04-01	870100000
1985-07-01	591900000
1985-10-01	1210900000
1986-01-01	-420000000
1986-04-01	-409000000
1986-07-01	-1044100000
1986-10-01	-1727600000
1987-01-01	-2345500000
1987-04-01	-2105700000
1987-07-01	-2631000000
1987-10-01	-2297200000
1988-01-01	317100000
1988-04-01	-679200000
1988-07-01	-578300000
1988-10-01	-3514700000
1989-01-01	-225600000
1989-04-01	345300000
1989-07-01	115200000
1989-10-01	-2659400000
1990-01-01	-190700000
1990-04-01	768900000
1990-07-01	525600000
1990-10-01	1265500000
1991-01-01	2357500000
1991-04-01	2342300000
1991-07-01	1585300000
1991-10-01	-365500000
1992-01-01	2531800000
1992-04-01	-566200000
1992-07-01	187300000
1992-10-01	3037000000
1993-01-01	1159600000
1993-04-01	-68100000
1993-07-01	316100000
1993-10-01	-235800000
1994-01-01	1797700000
1994-04-01	1836700000
1994-07-01	2458500000
1994-10-01	4237500000
1995-01-01	3720200000
1995-04-01	4347800000
1995-07-01	5863500000
1995-10-01	2836800000
1996-01-01	5939800000
1996-04-01	9453600000
1996-07-01	2252600000
1996-10-01	6228200000
1997-01-01	4101300000
1997-04-01	6647500000
1997-07-01	479300000
1997-10-01	-20371200000
1998-01-01	-5297800000
1998-04-01	37600000
1998-07-01	-4271200000
1998-10-01	-415800000
1999-01-01	2233000000
1999-04-01	3307700000
1999-07-01	1751900000
1999-10-01	6051500000
2000-01-01	9587200000
2000-04-01	4018100000
2000-07-01	-254700000
2000-10-01	-2347200000
2001-01-01	-660400000
2001-04-01	-665100000
2001-07-01	2568700000
2001-10-01	1661900000
2002-01-01	3383400000
2002-04-01	464900000
2002-07-01	2142200000
2002-10-01	-114100000
2003-01-01	879600000
2003-04-01	2973300000
2003-07-01	2351100000
2003-10-01	4696400000
2004-01-01	3452500000
2004-04-01	-7478300000
2004-07-01	-1222500000
2004-10-01	10245000000
2005-01-01	5127100000
2005-04-01	1599200000
2005-07-01	-2136000000
2005-10-01	-1973500000
2006-01-01	5973000000
2006-04-01	2229100000
2006-07-01	243300000
2006-10-01	2642200000
2007-01-01	3732700000
2007-04-01	4657100000
2007-07-01	-9435600000
2007-10-01	-5314900000
2008-01-01	-2546100000
2008-04-01	-3551300000
2008-07-01	-10070400000
2008-10-01	-41541400000