Quarter	US Dollars, sum over component sub-periods
1995-01-01	10969650.91326070000
1995-04-01	146330867.53550600000
1995-07-01	-1507181.66677800000
1995-10-01	18724769.53374310000
1996-01-01	-1469949.01840836000
1996-04-01	-4253224.38416563100
1996-07-01	-3789550.89956139000
1996-10-01	29924160.71922950000
1997-01-01	-15448249.52886170000
1997-04-01	-6392040.30027135000
1997-07-01	-12123662.69646759900
1997-10-01	-445526.91087506904
1998-01-01	-9457602.77074730000
1998-04-01	-13076684.24948269900
1998-07-01	-9215278.46840086000
1998-10-01	-37513200.02098899000
1999-01-01	46920687.57794600000
1999-04-01	-89718092.66341771000
1999-07-01	-14891083.33872760000
1999-10-01	-23663766.82338980000
2000-01-01	-20436372.63341650000
2000-04-01	-15782599.45199729900
2000-07-01	-25754978.23579739800
2000-10-01	-17650598.19171280000
2001-01-01	-33030854.89168190000
2001-04-01	-20097586.21704629800
2001-07-01	-20503020.26088769700
2001-10-01	-22033390.58492740000
2002-01-01	-9642922.70039069000
2002-04-01	-58855331.22677200000
2002-07-01	-27543271.84043669700
2002-10-01	-4001867.95148780060
2003-01-01	-40793896.21890350000
2003-04-01	-48843336.34303670000
2003-07-01	-27015768.53163720000
2003-10-01	-9519218.12273622000
2004-01-01	-493809183.73080700000
2004-04-01	-45799356.17279640000
2004-07-01	-105150244.95629299000
2004-10-01	-24612643.72921980000
2005-01-01	1429710624.72722000000
2005-04-01	8809576.67790244000
2005-07-01	-57316542.05436279600
2005-10-01	-108231704.59986500000
2006-01-01	-46913008.26594520000
2006-04-01	-119404079.31077400000
2006-07-01	-45883617.56959510600
2006-10-01	-92873088.20842020000
2007-01-01	-47200151.07639599600
2007-04-01	-53923147.95342890000
2007-07-01	-60494522.91973930600
2007-10-01	-37675848.92450830000
2008-01-01	-83899616.97933960000
2008-04-01	-73416730.32692610000
2008-07-01	-104965668.34365400000
2008-10-01	-101129594.53942100000
2009-01-01	-115794267.06013800000
2009-04-01	-65367498.12208950000
2009-07-01	-118725170.18084800000
2009-10-01	-273186231.04300200000
2010-01-01	-33210441.52095920200
2010-04-01	-53368831.87607780000
2010-07-01	-31016252.20285880200
2010-10-01	-143875963.44712900000
2011-01-01	-62892372.60376400500
2011-04-01	-87797127.63637500000
2011-07-01	-94601600.03118210000
2011-10-01	-2694655.30867510000
2012-01-01	-89175940.05735760000
2012-04-01	-115411777.82458399000
2012-07-01	-73829526.02354370000
2012-10-01	-247880484.16973200000
2013-01-01	-299525296.07471305000
2013-04-01	-91420690.07502949000
2013-07-01	-139083666.18475798000
2013-10-01	-230028214.43346900000
2014-01-01	-328918179.31212103000
2014-04-01	-142610805.49124402000
2014-07-01	-143048473.21905002000
2014-10-01	-267209583.84468900000
2015-01-01	-48406371.17903080000
2015-04-01	-168119256.07803800000
2015-07-01	-118951624.54999000000
2015-10-01	3282820.52442460000
2016-01-01	-114621933.05931900000
2016-04-01	-66623827.55803940000
2016-07-01	3347616.41619886040
2016-10-01	-74348134.92019801000
2017-01-01	-149177993.87556500000
2017-04-01	-45090854.95379920000
2017-07-01	-57550039.35840390000
2017-10-01	10597658.04331020000
2018-01-01	-36866328.52790270000
2018-04-01	-54795539.93867230000