Quarter	US Dollars, Sum Over Component Sub-periods
1990-01-01	30551955370.2243
1990-04-01	31582365003.4176
1990-07-01	28387329845.9582
1990-10-01	30086100507.9930
1991-01-01	29256055363.3218
1991-04-01	31393932362.6661
1991-07-01	30227285972.3760
1991-10-01	31660207856.2621
1992-01-01	31444422429.1658
1992-04-01	33007953118.4596
1992-07-01	31434239733.6293
1992-10-01	31653636891.8705
1993-01-01	33003645585.6713
1993-04-01	35741649392.5638
1993-07-01	33181585808.4965
1993-10-01	34989681900.5436
1994-01-01	35143346914.4390
1994-04-01	38669303301.4204
1994-07-01	37427439350.4789
1994-10-01	40659423643.7602
1995-01-01	41721327014.2180
1995-04-01	43978026785.9313
1995-07-01	40073272682.5670
1995-10-01	41511293533.5611
1996-01-01	42861524231.4339
1996-04-01	43719163694.9831
1996-07-01	42238061644.0022
1996-10-01	45279107645.2298
1997-01-01	47558912238.5425
1997-04-01	51549021493.4846
1997-07-01	49125956586.6102
1997-10-01	52020959500.3785
1998-01-01	51274226612.0015
1998-04-01	53288337057.4278
1998-07-01	47925234467.8790
1998-10-01	51915344372.8652
1999-01-01	52108084261.6080
1999-04-01	55845213849.2872
1999-07-01	53229823419.8658
1999-10-01	58806656101.4263
2000-01-01	60589139461.7908
2000-04-01	63222442452.3627
2000-07-01	58981666854.1221
2000-10-01	60907124598.5449
2001-01-01	58335841895.1639
2001-04-01	60399031079.0060
2001-07-01	53510032362.4595
2001-10-01	53619958209.3333
2002-01-01	52664226707.1003
2002-04-01	59692406692.4067
2002-07-01	56378527097.0632
2002-10-01	58273262111.5902
2003-01-01	58882753136.5966
2003-04-01	63803764402.7768
2003-07-01	58387782717.9586
2003-10-01	63676649437.5190
2004-01-01	64274546512.5104
2004-04-01	70395682570.8328
2004-07-01	69812369346.8618
2004-10-01	74781634938.4099
2005-01-01	75299747152.0622
2005-04-01	81437761338.0508
2005-07-01	79282865215.2235
2005-10-01	83872039529.7325
2006-01-01	84209447363.8621
2006-04-01	93301951233.9996
2006-07-01	89351606861.4918
2006-10-01	89879740168.5393
2007-01-01	89109764424.7183
2007-04-01	97451759708.7379
2007-07-01	97700892857.1429
2007-10-01	104097993276.9690
2008-01-01	101703263898.1030
2008-04-01	113134997856.1300
2008-07-01	109281192044.5100
2008-10-01	93323708958.9177
2009-01-01	74495771330.6927
2009-04-01	78269736090.4833
2009-07-01	85350751936.8069
2009-10-01	91125177584.8461
2010-01-01	92364603017.0067
2010-04-01	101212789415.6560
2010-07-01	102800911074.0410
2010-10-01	105293130675.0890
2011-01-01	108416373715.5220
2011-04-01	118744618563.8020
2011-07-01	117796414112.2040
2011-10-01	116158459081.5760
2012-01-01	116345410949.7800
2012-04-01	121046361986.4710
2012-07-01	118593875636.5590
2012-10-01	118891019172.5530
2013-01-01	114548068343.3030
2013-04-01	121597511724.8570
2013-07-01	118499037227.2140
2013-10-01	117726089165.5020