Quarter	US Dollars, Sum Over Component Sub-periods
1980-01-01	-205000000
1980-04-01	-230000000
1980-07-01	-57000000
1980-10-01	-265000000
1981-01-01	-97000000
1981-04-01	-215000000
1981-07-01	-25000000
1981-10-01	-181000000
1982-01-01	-337000000
1982-04-01	-353000000
1982-07-01	-249000000
1982-10-01	-330000000
1983-01-01	-422000000
1983-04-01	-387000000
1983-07-01	-394000000
1983-10-01	-311000000
1984-01-01	-476000000
1984-04-01	-451000000
1984-07-01	-561000000
1984-10-01	-533000000
1985-01-01	-595000000
1985-04-01	-475000000
1985-07-01	-547000000
1985-10-01	-503000000
1986-01-01	-544000000
1986-04-01	-488000000
1986-07-01	-560000000
1986-10-01	-573000000
1987-01-01	-562000000
1987-04-01	-504000000
1987-07-01	-616000000
1987-10-01	-574000000
1988-01-01	-527000000
1988-04-01	-520000000
1988-07-01	-695000000
1988-10-01	-552000000
1989-01-01	-387000000
1989-04-01	-668000000
1989-07-01	-344000000
1989-10-01	-634000000
1990-01-01	-335000000
1990-04-01	-683000000
1990-07-01	-316000000
1990-10-01	-647000000
1991-01-01	-197000000
1991-04-01	-520000000
1991-07-01	-278000000
1991-10-01	-649000000
1992-01-01	-369000000
1992-04-01	-690000000
1992-07-01	-304000000
1992-10-01	-689000000
1993-01-01	-349000000
1993-04-01	-574000000
1993-07-01	-384000000
1993-10-01	-742000000
1994-01-01	-467000000
1994-04-01	-738000000
1994-07-01	-499000000
1994-10-01	-847000000
1995-01-01	-537000000
1995-04-01	-735000000
1995-07-01	-648000000
1995-10-01	-780000000
1996-01-01	-714000000
1996-04-01	-859000000
1996-07-01	-874000000
1996-10-01	-958000000
1997-01-01	-948000000
1997-04-01	-1096000000
1997-07-01	-959000000
1997-10-01	-941000000
1998-01-01	-957000000
1998-04-01	-1080000000
1998-07-01	-962000000
1998-10-01	-999000000
1999-01-01	-1171000000
1999-04-01	-1302000000
1999-07-01	-1152000000
1999-10-01	-1516000000
2000-01-01	-1736000000
2000-04-01	-1733000000
2000-07-01	-3054000000
2000-10-01	-1854000000
2001-01-01	-1552000000
2001-04-01	-1570000000
2001-07-01	-1252000000
2001-10-01	-1224000000
2002-01-01	-1139000000
2002-04-01	-1333000000
2002-07-01	-1078000000
2002-10-01	-980000000
2003-01-01	-1114000000
2003-04-01	-1057000000
2003-07-01	-1223000000
2003-10-01	-1296000000
2004-01-01	-915000000
2004-04-01	-1049000000
2004-07-01	-1121000000
2004-10-01	-961000000
2005-01-01	-578000000
2005-04-01	-615000000
2005-07-01	-443000000
2005-10-01	259000000
2006-01-01	130000000
2006-04-01	-383000000
2006-07-01	-376000000
2006-10-01	-98000000
2007-01-01	-426000000
2007-04-01	1682000000
2007-07-01	-202000000
2007-10-01	-1274000000
2008-01-01	-967000000
2008-04-01	-1376000000
2008-07-01	-671000000
2008-10-01	-1006000000
2009-01-01	-930000000
2009-04-01	-1477000000
2009-07-01	-1847000000
2009-10-01	-835000000
2010-01-01	-888000000
2010-04-01	-1325000000
2010-07-01	-845000000
2010-10-01	-2121000000
2011-01-01	-763000000
2011-04-01	-1024000000
2011-07-01	-764000000
2011-10-01	-1008000000
2012-01-01	-1231000000
2012-04-01	-2179000000
2012-07-01	-1873000000
2012-10-01	-1208000000
2013-01-01	-1058000000
2013-04-01	-2027000000
2013-07-01	-1543000000
2013-10-01	-1711000000
2014-01-01	-592000000
2014-04-01	-1154000000
2014-07-01	-1552000000
2014-10-01	-1494000000