Quarter	US Dollars, Sum Over Component Sub-periods
1998-01-01	28400000000
1998-04-01	33700000000
1998-07-01	32800000000
1998-10-01	42000000000
1999-01-01	31400000000
1999-04-01	40400000000
1999-07-01	40700000000
1999-10-01	46200000000
2000-01-01	44500000000
2000-04-01	53200000000
2000-07-01	58500000000
2000-10-01	58500000000
2001-01-01	52000000000
2001-04-01	59100000000
2001-07-01	61700000000
2001-10-01	59300000000
2002-01-01	54700000000
2002-04-01	67900000000
2002-07-01	79900000000
2002-10-01	78900000000
2003-01-01	83200000000
2003-04-01	93900000000
2003-07-01	107700000000
2003-10-01	109000000000
2004-01-01	118000000000
2004-04-01	134000000000
2004-07-01	140300000000
2004-10-01	142100000000
2005-01-01	132500000000
2005-04-01	155700000000
2005-07-01	166900000000
2005-10-01	173100000000
2006-01-01	165200000000
2006-04-01	183600000000
2006-07-01	203100000000
2006-10-01	200100000000
2007-01-01	195100000000
2007-04-01	215800000000
2007-07-01	245600000000
2007-10-01	247600000000
2008-01-01	250500000000
2008-04-01	287300000000
2008-07-01	308400000000
2008-10-01	227900000000
2009-01-01	173400000000
2009-04-01	228800000000
2009-07-01	272200000000
2009-10-01	279800000000
2010-01-01	286400000000
2010-04-01	330200000000
2010-07-01	349300000000
2010-10-01	361400000000
2011-01-01	380400000000
2011-04-01	408300000000
2011-07-01	434300000000
2011-10-01	437400000000
2012-01-01	409400000000
2012-04-01	435500000000
2012-07-01	440200000000
2012-10-01	450200000000
2013-01-01	443400000000
2013-04-01	456700000000