Quarter	US Dollars, Sum Over Component Sub-periods
1981-01-01	3436000000
1981-04-01	4214000000
1981-07-01	4467000000
1981-10-01	4425000000
1982-01-01	4805000000
1982-04-01	4160000000
1982-07-01	4369000000
1982-10-01	4520000000
1983-01-01	5447000000
1983-04-01	4003000000
1983-07-01	4252000000
1983-10-01	4024000000
1984-01-01	4025000000
1984-04-01	3704000000
1984-07-01	3777000000
1984-10-01	3541000000
1985-01-01	3405000000
1985-04-01	3176000000
1985-07-01	2834000000
1985-10-01	3290000000
1986-01-01	3252000000
1986-04-01	2824000000
1986-07-01	3052000000
1986-10-01	2810000000
1987-01-01	2765000000
1987-04-01	3268000000
1987-07-01	3203000000
1987-10-01	3296000000
1988-01-01	3185000000
1988-04-01	3432000000
1988-07-01	3457000000
1988-10-01	3757000000
1989-01-01	3665000000
1989-04-01	3923000000
1989-07-01	4222000000
1989-10-01	4500000000
1990-01-01	4729000000
1990-04-01	4673000000
1990-07-01	5730000000
1990-10-01	6323000000
1991-01-01	6302000000
1991-04-01	6162000000
1991-07-01	6150000000
1991-10-01	6220000000
1992-01-01	6271000000
1992-04-01	6546000000
1992-07-01	6927000000
1992-10-01	7030000000
1993-01-01	6814000000
1993-04-01	6656000000
1993-07-01	7139000000
1993-10-01	7767000000
1994-01-01	7565000000
1994-04-01	7480000000
1994-07-01	8298000000
1994-10-01	8979000000
1995-01-01	9365000000
1995-04-01	10580000000
1995-07-01	10668000000
1995-10-01	10308000000
1996-01-01	9946000000
1996-04-01	11618000000
1996-07-01	11473000000
1996-10-01	11203000000
1997-01-01	11525000000
1997-04-01	11255000000
1997-07-01	12188000000
1997-10-01	11255000000
1998-01-01	8006000000
1998-04-01	8221000000
1998-07-01	8367000000
1998-10-01	7348000000
1999-01-01	6771000000
1999-04-01	7945000000
1999-07-01	7926000000
1999-10-01	7956000000
2000-01-01	8849000000
2000-04-01	9993000000
2000-07-01	11661000000
2000-10-01	9863000000
2001-01-01	9221000000
2001-04-01	9511000000
2001-07-01	8587000000
2001-10-01	7350000000
2002-01-01	7505000000
2002-04-01	8773000000
2002-07-01	10181000000
2002-10-01	9194000000
2003-01-01	10571000000
2003-04-01	9243000000
2003-07-01	9740000000
2003-10-01	9992000000
2004-01-01	11629000000
2004-04-01	12014000000
2004-07-01	13086000000
2004-10-01	13886000000
2005-01-01	17024000000
2005-04-01	17607000000
2005-07-01	18495000000
2005-10-01	16337000000
2006-01-01	16569000000
2006-04-01	18498000000
2006-07-01	19008000000
2006-10-01	19792000000
2007-01-01	18914000000
2007-04-01	21095000000
2007-07-01	22521000000
2007-10-01	22729000000
2008-01-01	26876000000
2008-04-01	31902000000
2008-07-01	32309000000
2008-10-01	25603000000
2009-01-01	18143000000
2009-04-01	20665000000
2009-07-01	24358000000
2009-10-01	25549000000
2010-01-01	28134000000
2010-04-01	30596000000
2010-07-01	32119000000
2010-10-01	36598000000
2011-01-01	36637000000
2011-04-01	42587000000
2011-07-01	42676000000
2011-10-01	44105000000
2012-01-01	44543000000
2012-04-01	46720000000
2012-07-01	42360000000
2012-10-01	46255000000
2013-01-01	43603000000
2013-04-01	46071000000
2013-07-01	44003000000
2013-10-01	43722000000