Quarter	US Dollars, Sum Over Component Sub-periods
1992-01-01	7283000000
1992-04-01	6093000000
1992-07-01	8370000000
1992-10-01	6618000000
1993-01-01	6943000000
1993-04-01	5867000000
1993-07-01	7541000000
1993-10-01	6374000000
1994-01-01	8040000000
1994-04-01	6296000000
1994-07-01	7945000000
1994-10-01	7807000000
1995-01-01	7328000000
1995-04-01	4930000000
1995-07-01	7122000000
1995-10-01	4897000000
1996-01-01	7669000000
1996-04-01	4887000000
1996-07-01	6938000000
1996-10-01	5105000000
1997-01-01	6689000000
1997-04-01	4275000000
1997-07-01	6085000000
1997-10-01	4897000000
1998-01-01	6693000000
1998-04-01	4760000000
1998-07-01	6431000000
1998-10-01	5343000000
1999-01-01	7166000000
1999-04-01	4765000000
1999-07-01	6419000000
1999-10-01	5131000000
2000-01-01	7075000000
2000-04-01	4687000000
2000-07-01	6105000000
2000-10-01	5233000000
2001-01-01	7449000000
2001-04-01	4871000000
2001-07-01	6314000000
2001-10-01	5361000000
2002-01-01	7451000000
2002-04-01	5158000000
2002-07-01	7238000000
2002-10-01	6051000000
2003-01-01	9193000000
2003-04-01	6785000000
2003-07-01	8522000000
2003-10-01	7989000000
2004-01-01	11226000000
2004-04-01	7677000000
2004-07-01	9788000000
2004-10-01	9206000000
2005-01-01	13029000000
2005-04-01	8826000000
2005-07-01	10736000000
2005-10-01	9816000000
2006-01-01	12341000000
2006-04-01	9977000000
2006-07-01	11686000000
2006-10-01	11622000000
2007-01-01	14460000000
2007-04-01	11378000000
2007-07-01	13916000000
2007-10-01	14562000000
2008-01-01	18804000000
2008-04-01	14394000000
2008-07-01	16243000000
2008-10-01	14182000000
2009-01-01	14865000000
2009-04-01	11209000000
2009-07-01	13895000000
2009-10-01	14557000000
2010-01-01	16135000000
2010-04-01	11066000000
2010-07-01	13597000000
2010-10-01	13908000000
2011-01-01	16604000000
2011-04-01	13590000000
2011-07-01	15763000000
2011-10-01	15136000000
2012-01-01	16886000000
2012-04-01	13102000000
2012-07-01	15085000000
2012-10-01	15479000000
2013-01-01	18346000000
2013-04-01	13761000000
2013-07-01	16589000000
2013-10-01	16484000000
2014-01-01	18256000000