Quarter	US Dollars, Sum Over Component Sub-periods
1980-01-01	110000000
1980-04-01	133000000
1980-07-01	126000000
1980-10-01	167000000
1981-01-01	105000000
1981-04-01	125000000
1981-07-01	214000000
1981-10-01	172000000
1982-01-01	154000000
1982-04-01	154000000
1982-07-01	187000000
1982-10-01	161000000
1983-01-01	194000000
1983-04-01	171000000
1983-07-01	178000000
1983-10-01	180000000
1984-01-01	152000000
1984-04-01	171000000
1984-07-01	162000000
1984-10-01	201000000
1985-01-01	170000000
1985-04-01	194000000
1985-07-01	244000000
1985-10-01	245000000
1986-01-01	260000000
1986-04-01	319000000
1986-07-01	425000000
1986-10-01	364000000
1987-01-01	353000000
1987-04-01	443000000
1987-07-01	445000000
1987-10-01	597000000
1988-01-01	674000000
1988-04-01	576000000
1988-07-01	560000000
1988-10-01	483000000
1989-01-01	353000000
1989-04-01	311000000
1989-07-01	224000000
1989-10-01	245000000
1990-01-01	239000000
1990-04-01	249000000
1990-07-01	323000000
1990-10-01	338000000
1991-01-01	206000000
1991-04-01	98000000
1991-07-01	218000000
1991-10-01	281000000
1992-01-01	223000000
1992-04-01	329000000
1992-07-01	248000000
1992-10-01	291000000
1993-01-01	214000000
1993-04-01	333000000
1993-07-01	348000000
1993-10-01	294000000
1994-01-01	278000000
1994-04-01	233000000
1994-07-01	350000000
1994-10-01	420000000
1995-01-01	319000000
1995-04-01	-21000000
1995-07-01	-338000000
1995-10-01	21000000
1996-01-01	23000000
1996-04-01	-27000000
1996-07-01	-15000000
1996-10-01	-31000000
1997-01-01	-106000000
1997-04-01	-59000000
1997-07-01	-109000000
1997-10-01	896000000
1998-01-01	1285000000
1998-04-01	750000000
1998-07-01	513000000
1998-10-01	772000000
1999-01-01	556000000
1999-04-01	405000000
1999-07-01	547000000
1999-10-01	361000000
2000-01-01	276000000
2000-04-01	117000000
2000-07-01	81000000
2000-10-01	92000000
2001-01-01	79000000
2001-04-01	-114000000
2001-07-01	-354000000
2001-10-01	5000000
2002-01-01	-111000000
2002-04-01	-379000000
2002-07-01	-582000000
2002-10-01	-546000000
2003-01-01	-732000000
2003-04-01	-597000000
2003-07-01	-929000000
2003-10-01	-647000000
2004-01-01	-794000000
2004-04-01	-678000000
2004-07-01	-344000000
2004-10-01	-617000000
2005-01-01	-539000000
2005-04-01	-696000000
2005-07-01	-685000000
2005-10-01	-562000000
2006-01-01	-1056000000
2006-04-01	-1317000000
2006-07-01	-1022000000
2006-10-01	-698000000
2007-01-01	-726000000
2007-04-01	-1037000000
2007-07-01	-1077000000
2007-10-01	-687000000
2008-01-01	-534000000
2008-04-01	-956000000
2008-07-01	-765000000
2008-10-01	1581000000
2009-01-01	1356000000
2009-04-01	-553000000
2009-07-01	-587000000
2009-10-01	-928000000
2010-01-01	-756000000
2010-04-01	-471000000
2010-07-01	-946000000
2010-10-01	-906000000
2011-01-01	-942000000
2011-04-01	-671000000
2011-07-01	-506000000
2011-10-01	-514000000
2012-01-01	-1234000000
2012-04-01	-518000000
2012-07-01	-523000000
2012-10-01	-911000000
2013-01-01	-260000000
2013-04-01	141000000
2013-07-01	-544000000
2013-10-01	-126000000