Quarter	US Dollars, Sum Over Component Sub-periods
1997-01-01	54013083027.8046
1997-04-01	61966986497.2303
1997-07-01	66937680677.1729
1997-10-01	62971510665.2433
1998-01-01	57822499866.4865
1998-04-01	65490787153.1275
1998-07-01	71055997284.4844
1998-10-01	69537084985.1864
1999-01-01	59114345581.0821
1999-04-01	67104762575.7362
1999-07-01	71213296979.8658
1999-10-01	67400103788.2719
2000-01-01	61695132787.0471
2000-04-01	66166417631.6773
2000-07-01	71413681959.2132
2000-10-01	68512549997.1016
2001-01-01	63328925111.4870
2001-04-01	69813590423.2080
2001-07-01	76891213264.7907
2001-10-01	72760792977.8468
2002-01-01	64509379931.0385
2002-04-01	76614861136.6563
2002-07-01	88396563596.4193
2002-10-01	82767866075.2993
2003-01-01	81275362318.8406
2003-04-01	92162735223.9597
2003-07-01	98234212599.9024
2003-10-01	101959781056.6400
2004-01-01	99048631078.8849
2004-04-01	110686995299.5060
2004-07-01	123182670361.9170
2004-10-01	120858845373.2890
2005-01-01	115653256453.9380
2005-04-01	124341807198.5900
2005-07-01	136540243902.4390
2005-10-01	127421503330.1620
2006-01-01	119354049719.3260
2006-04-01	138591478486.7400
2006-07-01	150667884607.2140
2006-10-01	147430561527.2160
2007-01-01	143265011799.6680
2007-04-01	163056079805.8780
2007-07-01	185931255728.6890
2007-10-01	187935081872.1920
2008-01-01	175566819816.2210
2008-04-01	200399375162.7180
2008-07-01	206146156153.1540
2008-10-01	173075912792.2250
2009-01-01	150647903204.8220
2009-04-01	165746255106.6730
2009-07-01	186511228722.6430
2009-10-01	194903273443.2680
2010-01-01	165629612546.1250
2010-04-01	172110212207.2090
2010-07-01	187648300521.2600
2010-10-01	191881645025.5620
2011-01-01	177945130565.5560
2011-04-01	202615141047.7840
2011-07-01	217530004235.8920
2011-10-01	204316895715.4410
2012-01-01	179855744011.1910
2012-04-01	198428296644.5820
2012-07-01	205984567257.5600
2012-10-01	205862605987.1950