Quarter	US Dollars, Sum Over Component Sub-periods
1995-01-01	654000000
1995-04-01	838000000
1995-07-01	880000000
1995-10-01	765000000
1996-01-01	631000000
1996-04-01	749000000
1996-07-01	900000000
1996-10-01	735000000
1997-01-01	601000000
1997-04-01	731000000
1997-07-01	735000000
1997-10-01	645000000
1998-01-01	555000000
1998-04-01	636000000
1998-07-01	767000000
1998-10-01	647000000
1999-01-01	542000000
1999-04-01	575000000
1999-07-01	623000000
1999-10-01	581000000
2000-01-01	503000000
2000-04-01	556000000
2000-07-01	645000000
2000-10-01	501000000
2001-01-01	457000000
2001-04-01	522000000
2001-07-01	637000000
2001-10-01	529000000
2002-01-01	464000000
2002-04-01	609000000
2002-07-01	750000000
2002-10-01	624000000
2003-01-01	567000000
2003-04-01	726000000
2003-07-01	843000000
2003-10-01	721000000
2004-01-01	696000000
2004-04-01	837000000
2004-07-01	1037000000
2004-10-01	892000000
2005-01-01	801000000
2005-04-01	953000000
2005-07-01	1267000000
2005-10-01	962000000
2006-01-01	865000000
2006-04-01	1076000000
2006-07-01	1382000000
2006-10-01	1175000000
2007-01-01	1136000000
2007-04-01	1351000000
2007-07-01	1731000000
2007-10-01	1475000000
2008-01-01	1596000000
2008-04-01	1988000000
2008-07-01	2074000000
2008-10-01	1616000000
2009-01-01	1250000000
2009-04-01	1435000000
2009-07-01	1743000000
2009-10-01	1624000000
2010-01-01	1346000000
2010-04-01	1416000000
2010-07-01	1728000000
2010-10-01	1585000000
2011-01-01	1430000000
2011-04-01	1707000000
2011-07-01	1967000000
2011-10-01	1639000000
2012-01-01	1450000000
2012-04-01	1551000000
2012-07-01	1836000000
2012-10-01	1686000000
2013-01-01	1585000000
2013-04-01	1711000000
2013-07-01	2034000000
2013-10-01	1796000000
2014-01-01	1611000000
2014-04-01	1882000000