Quarter	US Dollars, Sum Over Component Sub-periods
1990-01-01	532514369.435366
1990-04-01	2561517429.938480
1990-07-01	3180254905.927570
1990-10-01	3160749648.422930
1991-01-01	896193771.626298
1991-04-01	2133534427.751030
1991-07-01	1041144588.845500
1991-10-01	1926193412.013390
1992-01-01	712445866.002434
1992-04-01	2079531184.596070
1992-07-01	1181187569.367370
1992-10-01	3258148011.198560
1993-01-01	2146140434.300210
1993-04-01	2973944530.450530
1993-07-01	1612647615.152600
1993-10-01	3297010267.767260
1994-01-01	1913196859.783370
1994-04-01	2911954083.970390
1994-07-01	3887646458.262430
1994-10-01	5928966407.639280
1995-01-01	5015402843.601890
1995-04-01	5355970929.243330
1995-07-01	6281780181.952300
1995-10-01	8987391550.126580
1996-01-01	6191612102.329430
1996-04-01	8926285965.512190
1996-07-01	8189846011.628190
1996-10-01	7422634618.232070
1997-01-01	6258061352.100240
1997-04-01	3676251382.410920
1997-07-01	4003946671.800550
1997-10-01	4203491672.975020
1998-01-01	3146897130.078270
1998-04-01	3019971896.523920
1998-07-01	4647747787.415790
1998-10-01	4729776471.096890
1999-01-01	5938458144.921140
1999-04-01	5972165648.336730
1999-07-01	7988512194.574700
1999-10-01	7853520489.019700
2000-01-01	9727683589.896530
2000-04-01	9932204153.340240
2000-07-01	11510066359.239700
2000-10-01	13233269974.438000
2001-01-01	14984621425.299400
2001-04-01	11364275363.886100
2001-07-01	9609061488.673140
2001-10-01	9028050402.076870
2002-01-01	9734392972.916450
2002-04-01	8176962676.962680
2002-07-01	8719047923.731530
2002-10-01	8922965826.306730
2003-01-01	10552880367.556100
2003-04-01	7240392184.928070
2003-07-01	10344577614.537000
2003-10-01	11122681666.159900
2004-01-01	12425177726.617200
2004-04-01	13490984913.528800
2004-07-01	12073879569.673200
2004-10-01	11354983202.687600
2005-01-01	10526630597.319300
2005-04-01	9555323255.065940
2005-07-01	13311450889.147400
2005-10-01	17171579485.431900
2006-01-01	12967892822.082300
2006-04-01	8818864898.577410
2006-07-01	9783868953.830600
2006-10-01	10201896067.415700
2007-01-01	11735233868.214400
2007-04-01	13206007281.553400
2007-07-01	8675701530.612240
2007-10-01	8421106244.270140
2008-01-01	12432665516.783900
2008-04-01	14941126026.584000
2008-07-01	13675257402.315000
2008-10-01	1502227355.221910
2009-01-01	497805374.156943
2009-04-01	-1998172055.295330
2009-07-01	-3578307762.418350
2009-10-01	-1075927387.529600
2010-01-01	219069275.854338
2010-04-01	-1935923211.622020
2010-07-01	-7381624534.838960
2010-10-01	-267469403.868930
2011-01-01	944091400.757166
2011-04-01	-3031513690.373690
2011-07-01	-587895077.059164
2011-10-01	3256852328.651040
2012-01-01	526508591.980818
2012-04-01	-3969641973.271740
2012-07-01	-7166309300.455640
2012-10-01	-1415741675.075680
2013-01-01	629564757.592782
2013-04-01	-2647863470.557580
2013-07-01	-3754813863.928110
2013-10-01	-1250793852.406960