Quarter	US Dollars, Sum Over Component Sub-periods
2000-01-01	3041000000
2000-04-01	1905000000
2000-07-01	1700000000
2000-10-01	2992000000
2001-01-01	1378000000
2001-04-01	1768000000
2001-07-01	540000000
2001-10-01	-1000000
2002-01-01	1997000000
2002-04-01	1435000000
2002-07-01	1506000000
2002-10-01	1600000000
2003-01-01	1707000000
2003-04-01	1310000000
2003-07-01	1775000000
2003-10-01	2653000000
2004-01-01	4374000000
2004-04-01	3011000000
2004-07-01	2724000000
2004-10-01	-1722000000
2005-01-01	2711000000
2005-04-01	621000000
2005-07-01	1465000000
2005-10-01	3243000000
2006-01-01	3262000000
2006-04-01	2410000000
2006-07-01	298000000
2006-10-01	6916000000
2007-01-01	5632000000
2007-04-01	8925000000
2007-07-01	5709000000
2007-10-01	9535000000
2008-01-01	9407000000
2008-04-01	12387000000
2008-07-01	10778000000
2008-10-01	14546000000
2009-01-01	5560000000
2009-04-01	3276000000
2009-07-01	7451000000
2009-10-01	10913000000
2010-01-01	6696000000
2010-04-01	3607000000
2010-07-01	10614000000
2010-10-01	13575000000
2011-01-01	9414000000
2011-04-01	8925000000
2011-07-01	8410000000
2011-10-01	8939000000
2012-01-01	8209000000
2012-04-01	3009000000
2012-07-01	6582000000
2012-10-01	4530000000
2013-01-01	5053000000
2013-04-01	1002000000
2013-07-01	5985000000
2013-10-01	3249000000
2014-01-01	3522000000