Quarter	Percent Change
1987-04-01	3.883837595661870
1987-07-01	7.477270161656110
1987-10-01	10.435579593539400
1988-01-01	12.599304701204900
1988-04-01	17.282706271649900
1988-07-01	19.931267129017100
1988-10-01	20.950799703626700
1989-01-01	20.903324218241300
1989-04-01	17.741828688695900
1989-07-01	15.452783908787000
1989-10-01	13.717419497258800
1990-01-01	12.355487510466300
1990-04-01	16.026100801071400
1990-07-01	18.147135693315500
1990-10-01	19.028624793048400
1991-01-01	19.068927566709500
1991-04-01	17.586582043483500
1991-07-01	16.292789788021300
1991-10-01	15.159408617599000
1992-01-01	14.161820559221500
1992-04-01	10.917519125105300
1992-07-01	8.501812112683110
1992-10-01	6.599618668111620
1993-01-01	5.031535939083710
1993-04-01	11.276356788279900
1993-07-01	15.962255132796000
1993-10-01	18.791336607770600
1994-01-01	20.049972640023200
1994-04-01	15.222042324881000
1994-07-01	11.927171520487000
1994-10-01	9.509121924868460
1995-01-01	7.635943682822840
1995-04-01	10.186984210472800
1995-07-01	12.052000880340900
1995-10-01	13.260648970858400
1996-01-01	13.919730131786400
1996-04-01	16.729754177192300
1996-07-01	18.196401625508200
1996-10-01	18.664497356908800
1997-01-01	18.483994543888100
1997-04-01	16.476091207357400
1997-07-01	14.897278359276700
1997-10-01	13.620066982489200
1998-01-01	12.563271473723700
1998-04-01	17.733779107899000
1998-07-01	20.645292307863200
1998-10-01	21.739742188259000
1999-01-01	21.658576155968900
1999-04-01	16.369603946625500
1999-07-01	12.835357436600000
1999-10-01	10.283840203483500
2000-01-01	8.335204016210770
2000-04-01	8.510813336653540
2000-07-01	8.416336795785090
2000-10-01	9.226522806908340
2001-01-01	10.098679702386400
2001-04-01	9.796806826852160
2001-07-01	9.409559882383180
2001-10-01	9.255122753017020
2002-01-01	7.925653185151860
2002-04-01	6.149673793304970
2002-07-01	4.625231509065110
2002-10-01	3.048528128457370
2003-01-01	2.319440425820720
2003-04-01	2.092662898917380
2003-07-01	1.543391703411220
2003-10-01	1.157202521511340
2004-01-01	1.187648922912530
2004-04-01	1.533467350827250
2004-07-01	1.932325883566920
2004-10-01	2.118460217404420
2005-01-01	1.865902439781970
2005-04-01	1.523359613204680
2005-07-01	1.394812366760690
2005-10-01	1.292873392733100
2006-01-01	0.995742169903961
2006-04-01	0.689657760056151
2006-07-01	0.612971383779618
2006-10-01	0.550225993710823