Quarter	US Dollars, Sum Over Component Sub-periods
1994-01-01	1821000000
1994-04-01	1963000000
1994-07-01	3665000000
1994-10-01	394000000
1995-01-01	5318000000
1995-04-01	2797000000
1995-07-01	-978000000
1995-10-01	-174000000
1996-01-01	3248000000
1996-04-01	1434000000
1996-07-01	1813000000
1996-10-01	4352000000
1997-01-01	2823000000
1997-04-01	-714000000
1997-07-01	-1503000000
1997-10-01	-687000000
1998-01-01	-2957000000
1998-04-01	-3637000000
1998-07-01	775000000
1998-10-01	6038000000
1999-01-01	4081000000
1999-04-01	4236000000
1999-07-01	5491000000
1999-10-01	10807000000
2000-01-01	11598000000
2000-04-01	11812000000
2000-07-01	10551000000
2000-10-01	12878000000
2001-01-01	11678000000
2001-04-01	8959000000
2001-07-01	7096000000
2001-10-01	6202000000
2002-01-01	6421000000
2002-04-01	7674000000
2002-07-01	7183000000
2002-10-01	7838000000
2003-01-01	11435000000
2003-04-01	8147000000
2003-07-01	7275000000
2003-10-01	8553000000
2004-01-01	12772000000
2004-04-01	13586000000
2004-07-01	15111000000
2004-10-01	18044000000
2005-01-01	20133000000
2005-04-01	22349000000
2005-07-01	20081000000
2005-10-01	22039000000
2006-01-01	30470000000
2006-04-01	24414000000
2006-07-01	23960000000
2006-10-01	15842000000
2007-01-01	22797000000
2007-04-01	14695000000
2007-07-01	15861000000
2007-10-01	24415000000
2008-01-01	38713000000
2008-04-01	26833000000
2008-07-01	29488000000
2008-10-01	8496000000
2009-01-01	9686000000
2009-04-01	7952000000
2009-07-01	15058000000
2009-10-01	15908000000
2010-01-01	33677000000
2010-04-01	18368000000
2010-07-01	5628000000
2010-10-01	13408000000
2011-01-01	30800000000
2011-04-01	21891000000
2011-07-01	17836000000
2011-10-01	28307000000
2012-01-01	40425000000
2012-04-01	21206000000