Quarter	US Dollars, Sum Over Component Sub-periods
1985-01-01	-8913020000
1985-04-01	-15391340000
1985-07-01	-12996670000
1985-10-01	-17817080000
1986-01-01	-14951510000
1986-04-01	-26032360000
1986-07-01	-27319870000
1986-10-01	-20209860000
1987-01-01	-25281190000
1987-04-01	-22493930000
1987-07-01	-19638560000
1987-10-01	-12770990000
1988-01-01	-24987450000
1988-04-01	-15755470000
1988-07-01	-14226830000
1988-10-01	-27058580000
1989-01-01	-20551140000
1989-04-01	-6452690000
1989-07-01	-4722960000
1989-10-01	-9877540000
1990-01-01	-10533040000
1990-04-01	-12110940000
1990-07-01	-3684470000
1990-10-01	3634330000
1991-01-01	-9373120000
1991-04-01	-15367460000
1991-07-01	-15461590000
1991-10-01	-20371100000
1992-01-01	-34835280000
1992-04-01	-25246150000
1992-07-01	-20268670000
1992-10-01	-21909970000
1993-01-01	-39509310000
1993-04-01	-36502180000
1993-07-01	-23194440000
1993-10-01	-31966190000
1994-01-01	-41804310000
1994-04-01	-25457070000
1994-07-01	-19278310000
1994-10-01	-25670270000
1995-01-01	-43256640000
1995-04-01	-35776030000
1995-07-01	-18000360000
1995-10-01	-27787970000
1996-01-01	-11548430000
1996-04-01	-14265230000
1996-07-01	-14015340000
1996-10-01	-26585260000
1997-01-01	-34013780000
1997-04-01	-24053380000
1997-07-01	-35222890000
1997-10-01	-37881100000
1998-01-01	-35973520000
1998-04-01	-40337260000
1998-07-01	-23655660000
1998-10-01	-22455490000
1999-01-01	-43010240000
1999-04-01	-27301360000
1999-07-01	-30611220000
1999-10-01	-31388920000
2000-01-01	-44002450000
2000-04-01	-44735660000
2000-07-01	-23175120000
2000-10-01	-24599300000
2001-01-01	-23679500000
2001-04-01	-32738130000
2001-07-01	-18795250000
2001-10-01	-16281550000
2002-01-01	-40050320000
2002-04-01	-27115620000
2002-07-01	-22550880000
2002-10-01	-23193180000
2003-01-01	-35978290000
2003-04-01	-12976730000
2003-07-01	-38119950000
2003-10-01	-32162260000
2004-01-01	-39426840000
2004-04-01	-39721200000
2004-07-01	-41921860000
2004-10-01	-22112120000
2005-01-01	-48492110000
2005-04-01	-29514660000
2005-07-01	-36257320000
2005-10-01	-35716660000
2006-01-01	-46225050000
2006-04-01	-27862230000
2006-07-01	-36557160000
2006-10-01	-28383900000
2007-01-01	-70321910000
2007-04-01	-45604820000
2007-07-01	-60075010000
2007-10-01	-51800560000
2008-01-01	-75985750000
2008-04-01	-45155510000
2008-07-01	-37658510000
2008-10-01	-50127470000
2009-01-01	-66087860000
2009-04-01	-26210890000
2009-07-01	-50653800000
2009-10-01	-36951750000
2010-01-01	-77665020000
2010-04-01	-40863280000
2010-07-01	-89142530000
2010-10-01	-36849250000
2011-01-01	-76802530000
2011-04-01	-10180440000
2011-07-01	-56706050000
2011-10-01	-13760360000
2012-01-01	-28147840000
2012-04-01	-21830540000
2012-07-01	-25909330000
2012-10-01	10837220000
2013-01-01	4086650000
2013-04-01	9536790000
2013-07-01	-32147090000
2013-10-01	26090030000