Quarter	US Dollars, Sum Over Component Sub-periods
1997-01-01	90000000
1997-04-01	60000000
1997-07-01	-1000000
1997-10-01	156000000
1998-01-01	-104000000
1998-04-01	-109000000
1998-07-01	-19000000
1998-10-01	-256000000
1999-01-01	-371000000
1999-04-01	-404000000
1999-07-01	-385000000
1999-10-01	-471000000
2000-01-01	55000000
2000-04-01	443000000
2000-07-01	504000000
2000-10-01	401000000
2001-01-01	78000000
2001-04-01	218000000
2001-07-01	310000000
2001-10-01	179000000
2002-01-01	-31000000
2002-04-01	171000000
2002-07-01	165000000
2002-10-01	470000000
2003-01-01	-282000000
2003-04-01	102000000
2003-07-01	126000000
2003-10-01	297000000
2004-01-01	-149000000
2004-04-01	-77000000
2004-07-01	-258000000
2004-10-01	563000000
2005-01-01	247000000
2005-04-01	270000000
2005-07-01	-94000000
2005-10-01	315000000
2006-01-01	136000000
2006-04-01	3000000
2006-07-01	61000000
2006-10-01	536000000
2007-01-01	947000000
2007-04-01	842000000
2007-07-01	906000000
2007-10-01	2063000000
2008-01-01	851000000
2008-04-01	1369000000
2008-07-01	961000000
2008-10-01	1825000000
2009-01-01	1010000000
2009-04-01	1193000000
2009-07-01	1038000000
2009-10-01	1554000000
2010-01-01	743000000
2010-04-01	1075000000
2010-07-01	462000000
2010-10-01	818000000
2011-01-01	1263000000
2011-04-01	2018000000
2011-07-01	1474000000
2011-10-01	913000000
2012-01-01	1320000000
2012-04-01	1948000000
2012-07-01	1359000000
2012-10-01	1339000000
2013-01-01	1686000000
2013-04-01	2202000000
2013-07-01	1367000000
2013-10-01	1717000000
2014-01-01	1709000000