Quarter	US Dollars, Sum Over Component Sub-periods
1995-01-01	4573000000
1995-04-01	3771000000
1995-07-01	2842000000
1995-10-01	4155000000
1996-01-01	3132000000
1996-04-01	3270000000
1996-07-01	2943000000
1996-10-01	4454000000
1997-01-01	3448000000
1997-04-01	2739000000
1997-07-01	3894000000
1997-10-01	3719000000
1998-01-01	3247000000
1998-04-01	3266000000
1998-07-01	2544000000
1998-10-01	4236000000
1999-01-01	3503000000
1999-04-01	2867000000
1999-07-01	3262000000
1999-10-01	3305000000
2000-01-01	2625000000
2000-04-01	2652000000
2000-07-01	1658000000
2000-10-01	2462000000
2001-01-01	2109000000
2001-04-01	1014000000
2001-07-01	2260000000
2001-10-01	2539000000
2002-01-01	3219000000
2002-04-01	2986000000
2002-07-01	1766000000
2002-10-01	3305000000
2003-01-01	1171000000
2003-04-01	6590000000
2003-07-01	-97000000
2003-10-01	3137000000
2004-01-01	2265000000
2004-04-01	6464000000
2004-07-01	141000000
2004-10-01	2561000000
2005-01-01	1308000000
2005-04-01	9083000000
2005-07-01	-2378000000
2005-10-01	-325000000
2006-01-01	-852000000
2006-04-01	6058000000
2006-07-01	-538000000
2006-10-01	2891000000
2007-01-01	1919000000
2007-04-01	9709000000
2007-07-01	-1116000000
2007-10-01	-2172000000
2008-01-01	-96000000
2008-04-01	12379000000
2008-07-01	-10543000000
2008-10-01	-7073000000
2009-01-01	-3627000000
2009-04-01	3121000000
2009-07-01	-3513000000
2009-10-01	1144000000
2010-01-01	-2651000000
2010-04-01	10099000000
2010-07-01	1478000000
2010-10-01	-445000000
2011-01-01	-2834000000
2011-04-01	6765000000
2011-07-01	-6680000000
2011-10-01	-2714000000
2012-01-01	-2170000000
2012-04-01	3306000000
2012-07-01	-5070000000
2012-10-01	-5405000000
2013-01-01	-6385000000
2013-04-01	2190000000
2013-07-01	-3677000000
2013-10-01	-1795000000
2014-01-01	-2049000000