Quarter	US Dollars, Sum Over Component Sub-periods
1981-01-01	2080000000
1981-04-01	1574000000
1981-07-01	1533000000
1981-10-01	1619000000
1982-01-01	357000000
1982-04-01	841000000
1982-07-01	361000000
1982-10-01	334000000
1983-01-01	-1360000000
1983-04-01	590000000
1983-07-01	852000000
1983-10-01	881000000
1984-01-01	1189000000
1984-04-01	1774000000
1984-07-01	1480000000
1984-10-01	1264000000
1985-01-01	956000000
1985-04-01	1446000000
1985-07-01	1784000000
1985-10-01	1636000000
1986-01-01	1194000000
1986-04-01	387000000
1986-07-01	217000000
1986-10-01	660000000
1987-01-01	982000000
1987-04-01	856000000
1987-07-01	1265000000
1987-10-01	1571000000
1988-01-01	1699000000
1988-04-01	1305000000
1988-07-01	1481000000
1988-10-01	1193000000
1989-01-01	1534000000
1989-04-01	1715000000
1989-07-01	1681000000
1989-10-01	1734000000
1990-01-01	1326000000
1990-04-01	923000000
1990-07-01	924000000
1990-10-01	2179000000
1991-01-01	1089000000
1991-04-01	825000000
1991-07-01	1374000000
1991-10-01	1513000000
1992-01-01	1199000000
1992-04-01	1345000000
1992-07-01	1849000000
1992-10-01	2629000000
1993-01-01	2163000000
1993-04-01	2250000000
1993-07-01	2241000000
1993-10-01	1577000000
1994-01-01	1309000000
1994-04-01	2075000000
1994-07-01	2462000000
1994-10-01	2055000000
1995-01-01	1447000000
1995-04-01	1418000000
1995-07-01	1414000000
1995-10-01	2254000000
1996-01-01	1166000000
1996-04-01	910000000
1996-07-01	1343000000
1996-10-01	2529000000
1997-01-01	1438000000
1997-04-01	3482000000
1997-07-01	2176000000
1997-10-01	2979000000
1998-01-01	4821000000
1998-04-01	4972000000
1998-07-01	5099000000
1998-10-01	3536000000
1999-01-01	4039000000
1999-04-01	4457000000
1999-07-01	6343000000
1999-10-01	5804000000
2000-01-01	6265000000
2000-04-01	5745000000
2000-07-01	6168000000
2000-10-01	6865000000
2001-01-01	6179000000
2001-04-01	5493000000
2001-07-01	5645000000
2001-10-01	5379000000
2002-01-01	5219000000
2002-04-01	6341000000
2002-07-01	6130000000
2002-10-01	5823000000
2003-01-01	5837000000
2003-04-01	6114000000
2003-07-01	6440000000
2003-10-01	6173000000
2004-01-01	3125000000
2004-04-01	5489000000
2004-07-01	5970000000
2004-10-01	5568000000
2005-01-01	3177000000
2005-04-01	4057000000
2005-07-01	3502000000
2005-10-01	6799000000
2006-01-01	6693000000
2006-04-01	6986000000
2006-07-01	8596000000
2006-10-01	7386000000
2007-01-01	7712000000
2007-04-01	8107000000
2007-07-01	7487000000
2007-10-01	9448000000
2008-01-01	7536000000
2008-04-01	5443000000
2008-07-01	5771000000
2008-10-01	4166000000
2009-01-01	6052000000
2009-04-01	7493000000
2009-07-01	6931000000
2009-10-01	10455000000
2010-01-01	6954000000
2010-04-01	6848000000
2010-07-01	7593000000
2010-10-01	9232000000
2011-01-01	9264000000
2011-04-01	9223000000
2011-07-01	9700000000
2011-10-01	6596000000
2012-01-01	3810000000
2012-04-01	818000000
2012-07-01	3190000000
2012-10-01	801000000
2013-01-01	1628000000
2013-04-01	-517000000
2013-07-01	145000000
2013-10-01	4894000000