Quarter	US Dollars, Sum Over Component Sub-periods
1994-01-01	11315000000
1994-04-01	12091000000
1994-07-01	12549000000
1994-10-01	14497000000
1995-01-01	13428000000
1995-04-01	14615000000
1995-07-01	15760000000
1995-10-01	18800000000
1996-01-01	16368000000
1996-04-01	17153000000
1996-07-01	17037000000
1996-10-01	17534000000
1997-01-01	15240000000
1997-04-01	17167000000
1997-07-01	18408000000
1997-10-01	21168000000
1998-01-01	17841000000
1998-04-01	17388000000
1998-07-01	13431000000
1998-10-01	9354000000
1999-01-01	9111000000
1999-04-01	10108000000
1999-07-01	9484000000
1999-10-01	10833000000
2000-01-01	9980000000
2000-04-01	10379000000
2000-07-01	11127000000
2000-10-01	13375000000
2001-01-01	11291000000
2001-04-01	13615000000
2001-07-01	13238000000
2001-10-01	15619000000
2002-01-01	12347000000
2002-04-01	14768000000
2002-07-01	15725000000
2002-10-01	18125000000
2003-01-01	15982000000
2003-04-01	18200000000
2003-07-01	19573000000
2003-10-01	22314000000
2004-01-01	19918000000
2004-04-01	22975000000
2004-07-01	24963000000
2004-10-01	29526000000
2005-01-01	25711000000
2005-04-01	29429000000
2005-07-01	32457000000
2005-10-01	37836000000
2006-01-01	30871000000
2006-04-01	38817000000
2006-07-01	42623000000
2006-10-01	51969000000
2007-01-01	42775000000
2007-04-01	52761000000
2007-07-01	58344000000
2007-10-01	69605000000
2008-01-01	60216000000
2008-04-01	75442000000
2008-07-01	82902000000
2008-10-01	73302000000
2009-01-01	38482000000
2009-04-01	43930000000
2009-07-01	49049000000
2009-10-01	60342000000
2010-01-01	45676000000
2010-04-01	58104000000
2010-07-01	68331000000
2010-10-01	76523000000
2011-01-01	65076000000
2011-04-01	83039000000
2011-07-01	85215000000
2011-10-01	90501000000
2012-01-01	72586000000
2012-04-01	81859000000