Quarter	US Dollars, Sum Over Component Sub-periods
1980-01-01	1598000000
1980-04-01	1403000000
1980-07-01	1224000000
1980-10-01	1725000000
1981-01-01	1605000000
1981-04-01	1433000000
1981-07-01	1327000000
1981-10-01	1735000000
1982-01-01	1556000000
1982-04-01	1370000000
1982-07-01	1217000000
1982-10-01	1604000000
1983-01-01	1490000000
1983-04-01	1373000000
1983-07-01	1206000000
1983-10-01	1652000000
1984-01-01	1680000000
1984-04-01	1455000000
1984-07-01	1428000000
1984-10-01	1815000000
1985-01-01	1700000000
1985-04-01	1631000000
1985-07-01	1504000000
1985-10-01	1991000000
1986-01-01	1955000000
1986-04-01	1864000000
1986-07-01	1941000000
1986-10-01	2135000000
1987-01-01	2161000000
1987-04-01	2253000000
1987-07-01	2359000000
1987-10-01	2538000000
1988-01-01	2736000000
1988-04-01	2524000000
1988-07-01	2338000000
1988-10-01	2754000000
1989-01-01	2792000000
1989-04-01	2700000000
1989-07-01	2646000000
1989-10-01	3004000000
1990-01-01	3110000000
1990-04-01	2841000000
1990-07-01	3119000000
1990-10-01	3674000000
1991-01-01	2967000000
1991-04-01	2845000000
1991-07-01	2840000000
1991-10-01	3581000000
1992-01-01	3395000000
1992-04-01	3256000000
1992-07-01	3424000000
1992-10-01	3547000000
1993-01-01	3790000000
1993-04-01	3450000000
1993-07-01	3659000000
1993-10-01	4028000000
1994-01-01	4106000000
1994-04-01	4131000000
1994-07-01	3939000000
1994-10-01	5066000000
1995-01-01	4742000000
1995-04-01	4877000000
1995-07-01	4675000000
1995-10-01	5233000000
1996-01-01	5354000000
1996-04-01	4860000000
1996-07-01	5281000000
1996-10-01	5795000000
1997-01-01	5700000000
1997-04-01	5452000000
1997-07-01	5659000000
1997-10-01	5764000000
1998-01-01	5827000000
1998-04-01	5721000000
1998-07-01	5472000000
1998-10-01	5759000000
1999-01-01	5923000000
1999-04-01	6125000000
1999-07-01	6285000000
1999-10-01	7124000000
2000-01-01	7469000000
2000-04-01	7456000000
2000-07-01	7823000000
2000-10-01	8142000000
2001-01-01	7528000000
2001-04-01	6962000000
2001-07-01	6601000000
2001-10-01	6878000000
2002-01-01	6709000000
2002-04-01	6953000000
2002-07-01	6778000000
2002-10-01	7206000000
2003-01-01	7555000000
2003-04-01	7127000000
2003-07-01	7467000000
2003-10-01	8246000000
2004-01-01	9083000000
2004-04-01	9131000000
2004-07-01	8892000000
2004-10-01	9810000000
2005-01-01	10276000000
2005-04-01	10091000000
2005-07-01	10513000000
2005-10-01	9497000000
2006-01-01	10515000000
2006-04-01	11123000000
2006-07-01	10470000000
2006-10-01	11386000000
2007-01-01	12100000000
2007-04-01	12445000000
2007-07-01	12120000000
2007-10-01	14094000000
2008-01-01	15118000000
2008-04-01	15521000000
2008-07-01	15231000000
2008-10-01	12142000000
2009-01-01	11095000000
2009-04-01	10494000000
2009-07-01	11472000000
2009-10-01	13745000000
2010-01-01	13783000000
2010-04-01	14408000000
2010-07-01	13479000000
2010-10-01	14744000000
2011-01-01	16071000000
2011-04-01	16708000000
2011-07-01	16467000000
2011-10-01	15048000000
2012-01-01	15424000000
2012-04-01	16603000000
2012-07-01	15329000000
2012-10-01	14686000000
2013-01-01	15731000000
2013-04-01	15958000000
2013-07-01	14132000000
2013-10-01	16137000000
2014-01-01	17156000000
2014-04-01	15099000000
2014-07-01	14827000000
2014-10-01	15239000000