Quarter	US Dollars, Sum Over Component Sub-periods
1988-01-01	6214200000.000000
1988-04-01	7786100000.000000
1988-07-01	9130000000.000000
1988-10-01	7077100000.000000
1989-01-01	6485900000.000000
1989-04-01	8467500000.000000
1989-07-01	9640500000.000000
1989-10-01	8170200000.000000
1990-01-01	8177700000.000000
1990-04-01	10946500000.000000
1990-07-01	13338100000.000000
1990-10-01	14296600000.000000
1991-01-01	11085200000.000000
1991-04-01	10094400000.000000
1991-07-01	11350100000.000000
1991-10-01	10871700000.000000
1992-01-01	11898600000.000000
1992-04-01	14046800000.000000
1992-07-01	15381900000.000000
1992-10-01	12869600000.000000
1993-01-01	10758000000.000000
1993-04-01	12740000000.000000
1993-07-01	13856100000.000000
1993-10-01	11565200000.000000
1994-01-01	12869900000.000000
1994-04-01	15671500000.000000
1994-07-01	15996700000.000000
1994-10-01	15553000000.000000
1995-01-01	13940900000.000000
1995-04-01	15860500000.000000
1995-07-01	16904400000.000002
1995-10-01	16472500000.000000
1996-01-01	16308400000.000000
1996-04-01	18091800000.000000
1996-07-01	20822600000.000000
1996-10-01	17443600000.000000
1997-01-01	16631300000.000000
1997-04-01	19396400000.000000
1997-07-01	22362300000.000000
1997-10-01	17509400000.000000
1998-01-01	14710300000.000000
1998-04-01	18006700000.000000
1998-07-01	20822700000.000000
1998-10-01	16177700000.000000
1999-01-01	12344200000.000000
1999-04-01	15264800000.000000
1999-07-01	17491800000.000000
1999-10-01	13474900000.000000
2000-01-01	12075200000.000000
2000-04-01	14628300000.000000
2000-07-01	16834700000.000000
2000-10-01	12819700000.000000
2001-01-01	11676100000.000000
2001-04-01	16057100000.000000
2001-07-01	17507800000.000000
2001-10-01	12301100000.000000
2002-01-01	10667700000.000000
2002-04-01	15850500000.000000
2002-07-01	19194700000.000000
2002-10-01	14625800000.000000
2003-01-01	13346000000.000000
2003-04-01	18326500000.000000
2003-07-01	22721400000.000000
2003-10-01	17457100000.000000
2004-01-01	17799600000.000000
2004-04-01	21812500000.000000
2004-07-01	25155400000.000000
2004-10-01	19797600000.000000
2005-01-01	18786700000.000000
2005-04-01	23006800000.000000
2005-07-01	26513200000.000000
2005-10-01	20859000000.000000
2006-01-01	20802900000.000000
2006-04-01	26017500000.000000
2006-07-01	29021400000.000000
2006-10-01	23183400000.000000
2007-01-01	22876300000.000000
2007-04-01	27688200000.000000
2007-07-01	32959900000.000000
2007-10-01	28722000000.000000
2008-01-01	25706200000.000000
2008-04-01	32936000000.000000
2008-07-01	33914400000.000000
2008-10-01	23527700000.000000
2009-01-01	16951000000.000000
2009-04-01	23030900000.000000
2009-07-01	29517300000.000000
2009-10-01	24274800000.000000
2010-01-01	19781600000.000000
2010-04-01	24759300000.000000
2010-07-01	28173000000.000000
2010-10-01	25116800000.000000
2011-01-01	20333500000.000000
2011-04-01	28330200000.000000
2011-07-01	32425900000.000000
2011-10-01	25130600000.000000
2012-01-01	21576400000.000000
2012-04-01	26959300000.000000
2012-07-01	30529000000.000000
2012-10-01	25797500000.000000
2013-01-01	21432100000.000000
2013-04-01	28762800000.000000
2013-07-01	33525300000.000004
2013-10-01	27092900000.000000
2014-01-01	23747200000.000000