Quarter	Percent Change
1987-04-01	5.679892219662430
1987-07-01	10.749197176078700
1987-10-01	14.558856592503500
1988-01-01	16.944845668586000
1988-04-01	17.939657523334600
1988-07-01	18.136147717174900
1988-10-01	17.828109168297700
1989-01-01	17.232131078244500
1989-04-01	16.975113342112000
1989-07-01	16.457409170964600
1989-10-01	15.802408159209500
1990-01-01	15.088753667199200
1990-04-01	16.635879883925100
1990-07-01	17.285616459080300
1990-10-01	17.315118491715100
1991-01-01	16.956193017477400
1991-04-01	14.749222564925000
1991-07-01	13.072461989551100
1991-10-01	11.754837265407200
1992-01-01	10.691738016272500
1992-04-01	10.811019114631900
1992-07-01	10.795873469198600
1992-10-01	10.682238756113900
1993-01-01	10.499018478003500
1993-04-01	12.791329256656800
1993-07-01	14.257483632981400
1993-10-01	15.031190350075000
1994-01-01	15.286292574597400
1994-04-01	12.261696819761500
1994-07-01	10.033677615630800
1994-10-01	8.311029864542160
1995-01-01	6.927573697744380
1995-04-01	14.550530824579500
1995-07-01	19.748758442091700
1995-10-01	22.376211482776100
1996-01-01	23.093210124893800
1996-04-01	24.674979451596300
1996-07-01	24.535162118237400
1996-10-01	23.510532650036700
1997-01-01	22.119305075050700
1997-04-01	15.060793017555100
1997-07-01	10.436848554899300
1997-10-01	7.048621103261820
1998-01-01	4.340765156444890
1998-04-01	14.135362867196000
1998-07-01	21.124516946784200
1998-10-01	24.655865867417600
1999-01-01	25.567509632120800
1999-04-01	17.575304976835800
1999-07-01	12.578360161025300
1999-10-01	9.067989709487980
2000-01-01	6.384088730131740
2000-04-01	7.332385125375750
2000-07-01	5.269300998069790
2000-10-01	4.066748042012680
2001-01-01	4.318686221639500
2001-04-01	39.732973691976100
2001-07-01	5.571888976739740
2001-10-01	6.391085249508730
2002-01-01	5.453814949369070
2002-04-01	5.401657818573490
2002-07-01	5.957077861462490
2002-10-01	5.734724932024280
2003-01-01	5.774449890898450
2003-04-01	5.273578810248440
2003-07-01	3.793115523815000
2003-10-01	3.390213803979430
2004-01-01	3.275515807037020
2004-04-01	2.141412948431360
2004-07-01	1.622405853245960
2004-10-01	1.217314198013860
2005-01-01	0.650085468730805
2005-04-01	0.537088503660703
2005-07-01	0.253507002795920
2005-10-01	0.180228752991105
2006-01-01	0.190849542627110
2006-04-01	0.283308032036425
2006-07-01	0.584755336411630
2006-10-01	0.449405721987955