Quarter	US Dollars, Sum Over Component Sub-periods
1979-01-01	-1232000000
1979-04-01	-1308000000
1979-07-01	-1524000000
1979-10-01	-1496000000
1980-01-01	-1580000000
1980-04-01	-1798000000
1980-07-01	-1870000000
1980-10-01	-1772000000
1981-01-01	-1994000000
1981-04-01	-2533000000
1981-07-01	-2863000000
1981-10-01	-2886000000
1982-01-01	-2955000000
1982-04-01	-3346000000
1982-07-01	-3638000000
1982-10-01	-3609000000
1983-01-01	-3023000000
1983-04-01	-2852000000
1983-07-01	-2355000000
1983-10-01	-2815000000
1984-01-01	-2533000000
1984-04-01	-3147000000
1984-07-01	-2623000000
1984-10-01	-3196000000
1985-01-01	-3035000000
1985-04-01	-2805000000
1985-07-01	-2595000000
1985-10-01	-2848000000
1986-01-01	-2784000000
1986-04-01	-2833000000
1986-07-01	-2758000000
1986-10-01	-2775000000
1987-01-01	-2493000000
1987-04-01	-2704000000
1987-07-01	-2554000000
1987-10-01	-2667000000
1988-01-01	-3125000000
1988-04-01	-2715000000
1988-07-01	-3006000000
1988-10-01	-3354000000
1989-01-01	-2812000000
1989-04-01	-3690000000
1989-07-01	-3887000000
1989-10-01	-2279000000
1990-01-01	-4181000000
1990-04-01	-1543000000
1990-07-01	-2866000000
1990-10-01	-3183000000
1991-01-01	-2929000000
1991-04-01	-2137000000
1991-07-01	-2622000000
1991-10-01	-2056000000
1992-01-01	-2436000000
1992-04-01	-1255000000
1992-07-01	-3142000000
1992-10-01	-1319000000
1993-01-01	-3545000000
1993-04-01	-1976000000
1993-07-01	-1881000000
1993-10-01	-2928000000
1994-01-01	-2006000000
1994-04-01	-2250000000
1994-07-01	-1599000000
1994-10-01	-3180000000
1995-01-01	-2580000000
1995-04-01	-3808000000
1995-07-01	-1735000000
1995-10-01	-2934000000
1996-01-01	-2183000000
1996-04-01	-2909000000
1996-07-01	-2508000000
1996-10-01	-4069000000
1997-01-01	-2267000000
1997-04-01	-4289000000
1997-07-01	-2978000000
1997-10-01	-5342000000
1998-01-01	-2398000000
1998-04-01	-5413000000
1998-07-01	-4330000000
1998-10-01	-6048000000
1999-01-01	-3978000000
1999-04-01	-5897000000
1999-07-01	-3278000000
1999-10-01	-5695000000
2000-01-01	-2942000000
2000-04-01	-6366000000
2000-07-01	-3037000000
2000-10-01	-5541000000
2001-01-01	-4527000000
2001-04-01	-5479000000
2001-07-01	-3859000000
2001-10-01	-5878000000
2002-01-01	-3550000000
2002-04-01	-5716000000
2002-07-01	-3742000000
2002-10-01	-5181000000
2003-01-01	-3497000000
2003-04-01	-5304000000
2003-07-01	-3542000000
2003-10-01	-6209000000
2004-01-01	-4592000000
2004-04-01	-5775000000
2004-07-01	-4180000000
2004-10-01	-5973000000
2005-01-01	-5310000000
2005-04-01	-7217000000
2005-07-01	-5999000000
2005-10-01	-7440000000
2006-01-01	-6925000000
2006-04-01	-7675000000
2006-07-01	-5505000000
2006-10-01	-7376000000
2007-01-01	-6725000000
2007-04-01	-7363000000
2007-07-01	-6829000000
2007-10-01	-8374000000
2008-01-01	-10686000000
2008-04-01	-11230000000
2008-07-01	-10562000000
2008-10-01	-8083000000
2009-01-01	-5950000000
2009-04-01	-8685000000
2009-07-01	-7779000000
2009-10-01	-11270000000
2010-01-01	-7640000000
2010-04-01	-12091000000
2010-07-01	-8398000000
2010-10-01	-11357000000
2011-01-01	-11100000000
2011-04-01	-11477000000
2011-07-01	-11374000000
2011-10-01	-13368000000
2012-01-01	-5805000000
2012-04-01	-8373000000
2012-07-01	-8328000000
2012-10-01	-12941000000
2013-01-01	-10012000000
2013-04-01	-9766000000
2013-07-01	-6437000000
2013-10-01	-13562000000
2014-01-01	-9217000000
2014-04-01	-10120000000
2014-07-01	-8667000000
2014-10-01	-12319000000