Quarter	US Dollars, Sum Over Component Sub-periods
1981-01-01	1004000000
1981-04-01	1229000000
1981-07-01	1436000000
1981-10-01	1329000000
1982-01-01	1333000000
1982-04-01	1159000000
1982-07-01	1227000000
1982-10-01	1143000000
1983-01-01	1152000000
1983-04-01	952000000
1983-07-01	1144000000
1983-10-01	1063000000
1984-01-01	1145000000
1984-04-01	837000000
1984-07-01	1143000000
1984-10-01	1114000000
1985-01-01	1289000000
1985-04-01	1178000000
1985-07-01	1350000000
1985-10-01	1318000000
1986-01-01	1157000000
1986-04-01	989000000
1986-07-01	1158000000
1986-10-01	952000000
1987-01-01	1072000000
1987-04-01	1035000000
1987-07-01	1163000000
1987-10-01	1170000000
1988-01-01	1053000000
1988-04-01	1078000000
1988-07-01	1177000000
1988-10-01	1298000000
1989-01-01	1271000000
1989-04-01	1368000000
1989-07-01	1398000000
1989-10-01	1402000000
1990-01-01	1367000000
1990-04-01	1477000000
1990-07-01	1532000000
1990-10-01	1680000000
1991-01-01	1485000000
1991-04-01	1605000000
1991-07-01	1671000000
1991-10-01	1803000000
1992-01-01	1636000000
1992-04-01	2142000000
1992-07-01	2114000000
1992-10-01	2208000000
1993-01-01	2115000000
1993-04-01	2152000000
1993-07-01	2835000000
1993-10-01	2744000000
1994-01-01	2627000000
1994-04-01	2778000000
1994-07-01	2933000000
1994-10-01	3079000000
1995-01-01	3173000000
1995-04-01	3414000000
1995-07-01	3385000000
1995-10-01	3568000000
1996-01-01	3481000000
1996-04-01	3941000000
1996-07-01	3807000000
1996-10-01	3910000000
1997-01-01	4001000000
1997-04-01	4695000000
1997-07-01	4202000000
1997-10-01	3709000000
1998-01-01	3177000000
1998-04-01	3506000000
1998-07-01	3066000000
1998-10-01	2339000000
1999-01-01	2316000000
1999-04-01	3092000000
1999-07-01	3353000000
1999-10-01	3615000000
2000-01-01	3678000000
2000-04-01	3941000000
2000-07-01	4080000000
2000-10-01	3938000000
2001-01-01	4287000000
2001-04-01	3917000000
2001-07-01	3874000000
2001-10-01	3802000000
2002-01-01	4171000000
2002-04-01	4045000000
2002-07-01	4475000000
2002-10-01	4353000000
2003-01-01	4539000000
2003-04-01	3805000000
2003-07-01	4968000000
2003-10-01	4089000000
2004-01-01	6541000000
2004-04-01	4802000000
2004-07-01	4368000000
2004-10-01	5146000000
2005-01-01	5500000000
2005-04-01	4335000000
2005-07-01	5505000000
2005-10-01	6709000000
2006-01-01	5252000000
2006-04-01	5175000000
2006-07-01	5085000000
2006-10-01	5882000000
2007-01-01	6283000000
2007-04-01	6017000000
2007-07-01	5765000000
2007-10-01	6264000000
2008-01-01	7001000000
2008-04-01	7152000000
2008-07-01	7166000000
2008-10-01	6926000000
2009-01-01	4598000000
2009-04-01	5507000000
2009-07-01	5798000000
2009-10-01	6993000000
2010-01-01	5979000000
2010-04-01	6291000000
2010-07-01	6489000000
2010-10-01	7331000000
2011-01-01	6304000000
2011-04-01	7661000000
2011-07-01	7951000000
2011-10-01	9407000000
2012-01-01	7817000000
2012-04-01	8543000000
2012-07-01	7824000000
2012-10-01	9260000000
2013-01-01	8132000000
2013-04-01	8766000000
2013-07-01	8207000000
2013-10-01	8883000000