Quarter	US Dollars, Sum Over Component Sub-periods
1994-01-01	1856000000
1994-04-01	5248000000
1994-07-01	6075000000
1994-10-01	3747000000
1995-01-01	5515000000
1995-04-01	5997000000
1995-07-01	4651000000
1995-10-01	3653000000
1996-01-01	4065000000
1996-04-01	4673000000
1996-07-01	4757000000
1996-10-01	8097000000
1997-01-01	5051000000
1997-04-01	3105000000
1997-07-01	3119000000
1997-10-01	3638000000
1998-01-01	101000000
1998-04-01	1256000000
1998-07-01	5736000000
1998-10-01	9335000000
1999-01-01	6162000000
1999-04-01	6978000000
1999-07-01	9396000000
1999-10-01	13478000000
2000-01-01	13911000000
2000-04-01	15078000000
2000-07-01	15508000000
2000-10-01	15675000000
2001-01-01	14269000000
2001-04-01	12537000000
2001-07-01	12356000000
2001-10-01	8959000000
2002-01-01	9538000000
2002-04-01	11524000000
2002-07-01	13204000000
2002-10-01	12069000000
2003-01-01	15098000000
2003-04-01	13548000000
2003-07-01	15372000000
2003-10-01	15842000000
2004-01-01	17370000000
2004-04-01	20213000000
2004-07-01	23507000000
2004-10-01	24735000000
2005-01-01	24494000000
2005-04-01	30129000000
2005-07-01	32430000000
2005-10-01	31311000000
2006-01-01	36475000000
2006-04-01	37737000000
2006-07-01	37193000000
2006-10-01	27864000000
2007-01-01	28918000000
2007-04-01	30971000000
2007-07-01	31139000000
2007-10-01	39887000000
2008-01-01	49913000000
2008-04-01	51227000000
2008-07-01	53869000000
2008-10-01	24733000000
2009-01-01	18783000000
2009-04-01	24183000000
2009-07-01	33402000000
2009-10-01	35217000000
2010-01-01	46550000000
2010-04-01	39265000000
2010-07-01	29166000000
2010-10-01	37015000000
2011-01-01	48160000000
2011-04-01	50666000000
2011-07-01	45153000000
2011-10-01	54202000000
2012-01-01	59181000000
2012-04-01	50058000000