Quarter	US Dollars, Sum Over Component Sub-periods
1997-01-01	-31419375094.6053
1997-04-01	-21722744344.0475
1997-07-01	-20201420759.0163
1997-10-01	-32610246594.5010
1998-01-01	-49236076014.1323
1998-04-01	-39228541969.2391
1998-07-01	-23536601926.2578
1998-10-01	-82950329804.6640
1999-01-01	-48373119808.4262
1999-04-01	-80011272368.6064
1999-07-01	-40910234899.3289
1999-10-01	-180221069019.2010
2000-01-01	-82821601342.6794
2000-04-01	-88040717220.7695
2000-07-01	-123547910955.8090
2000-10-01	-121238189090.4880
2001-01-01	-69703521451.6377
2001-04-01	-84260041359.6248
2001-07-01	-54183282322.5270
2001-10-01	-89804741147.6683
2002-01-01	-41033253462.6848
2002-04-01	-36303108331.8006
2002-07-01	-40497098075.2205
2002-10-01	-45429686197.3522
2003-01-01	-47681159420.2899
2003-04-01	-31531180190.0723
2003-07-01	-42301226970.8454
2003-10-01	-43351975249.8810
2004-01-01	-53631703962.9954
2004-04-01	-33456671085.9347
2004-07-01	-33001711770.4597
2004-10-01	-92590785439.7858
2005-01-01	-143256453937.8850
2005-04-01	-51064686634.7848
2005-07-01	-160373170731.7070
2005-10-01	-91580637488.1066
2006-01-01	-96805934242.1812
2006-04-01	-172891197787.9260
2006-07-01	-126110379402.6430
2006-10-01	-130388683463.7540
2007-01-01	-152673280307.6650
2007-04-01	-186558371528.7140
2007-07-01	-160390009165.9030
2007-10-01	-204909433415.4470
2008-01-01	-215135836995.6050
2008-04-01	-63909919291.8511
2008-07-01	-171695491352.5940
2008-10-01	-51662726556.3436
2009-01-01	-135346719285.3120
2009-04-01	-66550158874.2624
2009-07-01	-121912458875.6970
2009-10-01	-169494462220.0340
2010-01-01	-122075645756.4580
2010-04-01	-156962175441.5690
2010-07-01	-120908542626.9760
2010-10-01	-69809075691.0827
2011-01-01	-188290571024.9280
2011-04-01	-93907599309.1537
2011-07-01	-115670918247.2820
2011-10-01	-165836701697.6560
2012-01-01	-99094684385.3821
2012-04-01	-84238512502.6715
2012-07-01	-76651094890.5109
2012-10-01	-12396608409.7595