Quarter	US Dollars, Sum Over Component Sub-periods
1984-01-01	-191000000
1984-04-01	-807000000
1984-07-01	-963000000
1984-10-01	-981000000
1985-01-01	-518000000
1985-04-01	-589000000
1985-07-01	-753000000
1985-10-01	-1115000000
1986-01-01	-808000000
1986-04-01	-807000000
1986-07-01	-844000000
1986-10-01	-622000000
1987-01-01	-685000000
1987-04-01	-627000000
1987-07-01	-706000000
1987-10-01	-1211000000
1988-01-01	-484000000
1988-04-01	-814000000
1988-07-01	-462000000
1988-10-01	-17000000
1989-01-01	-297000000
1989-04-01	-1188000000
1989-07-01	-1704000000
1989-10-01	-1030000000
1990-01-01	-1629000000
1990-04-01	-2204000000
1990-07-01	-2855000000
1990-10-01	-2867000000
1991-01-01	-1342000000
1991-04-01	-1677000000
1991-07-01	-2308000000
1991-10-01	-2013000000
1992-01-01	-1265000000
1992-04-01	-2072000000
1992-07-01	-2449000000
1992-10-01	-2290000000
1993-01-01	-2199000000
1993-04-01	-4228000000
1993-07-01	-4298000000
1993-10-01	-3356000000
1994-01-01	-1776000000
1994-04-01	-806000000
1994-07-01	-499000000
1994-10-01	-1086000000
1995-01-01	-1776000000
1995-04-01	-3092000000
1995-07-01	-3957000000
1995-10-01	-4327000000
1996-01-01	-2303000000
1996-04-01	-3197000000
1996-07-01	-2124000000
1996-10-01	-2640000000
1997-01-01	-2658000000
1997-04-01	-3871000000
1997-07-01	-4469000000
1997-10-01	-4050000000
1998-01-01	-3022000000
1998-04-01	-3995000000
1998-07-01	-3904000000
1998-10-01	-3117000000
1999-01-01	-725000000
1999-04-01	-3136000000
1999-07-01	-2858000000
1999-10-01	-3052000000
2000-01-01	-3759000000
2000-04-01	-5830000000
2000-07-01	-6293000000
2000-10-01	-6175000000
2001-01-01	-1973000000
2001-04-01	-162000000
2001-07-01	-976000000
2001-10-01	-252000000
2002-01-01	-571000000
2002-04-01	-1852000000
2002-07-01	-1843000000
2002-10-01	-2124000000
2003-01-01	-2331000000
2003-04-01	-3037000000
2003-07-01	-3915000000
2003-10-01	-4206000000
2004-01-01	-4946000000
2004-04-01	-5739000000
2004-07-01	-6005000000
2004-10-01	-6046000000
2005-01-01	-6062000000
2005-04-01	-8502000000
2005-07-01	-9558000000
2005-10-01	-8958000000
2006-01-01	-8633000000
2006-04-01	-12470000000
2006-07-01	-11156000000
2006-10-01	-8799000000
2007-01-01	-8956000000
2007-04-01	-11495000000
2007-07-01	-13520000000
2007-10-01	-12881000000
2008-01-01	-12137000000
2008-04-01	-16747000000
2008-07-01	-16181000000
2008-10-01	-7956000000
2009-01-01	-1255000000
2009-04-01	-6809000000
2009-07-01	-9405000000
2009-10-01	-7381000000
2010-01-01	-8851000000
2010-04-01	-12130000000
2010-07-01	-16643000000
2010-10-01	-18789000000
2011-01-01	-20538000000
2011-04-01	-25946000000
2011-07-01	-23293000000
2011-10-01	-19360000000
2012-01-01	-16701000000
2012-04-01	-17892000000
2012-07-01	-16246000000
2012-10-01	-14492000000
2013-01-01	-17216000000
2013-04-01	-23374000000
2013-07-01	-20124000000
2013-10-01	-19309000000
2014-01-01	-12087000000
2014-04-01	-17235000000