Quarter	Percent Change
1987-04-01	3.885841754277200
1987-07-01	7.480984297106500
1987-10-01	10.440429550440800
1988-01-01	12.604598506711900
1988-04-01	17.788317966172400
1988-07-01	20.700657143461200
1988-10-01	21.788894508801700
1989-01-01	21.699373184995900
1989-04-01	18.312608311786300
1989-07-01	15.885803550183400
1989-10-01	14.059921144413200
1990-01-01	12.635191126136500
1990-04-01	16.631578807384300
1990-07-01	18.901694693887700
1990-10-01	19.800783274157100
1991-01-01	19.786729676759900
1991-04-01	17.656282799554200
1991-07-01	15.973877128688900
1991-10-01	14.607675706789600
1992-01-01	13.473500611341300
1992-04-01	11.245331852886500
1992-07-01	9.543740551685410
1992-10-01	8.196627110836840
1993-01-01	7.099102630661780
1993-04-01	11.548647987177700
1993-07-01	14.763746776135500
1993-10-01	16.707782943139200
1994-01-01	17.609019928484800
1994-04-01	14.247698469297700
1994-07-01	11.836465075838100
1994-10-01	10.016452408682700
1995-01-01	8.588876928158250
1995-04-01	10.318983088869300
1995-07-01	11.537841269539800
1995-10-01	12.302473822447900
1996-01-01	12.698401158343700
1996-04-01	15.782629666239700
1996-07-01	17.530835880295700
1996-10-01	18.233864541600700
1997-01-01	18.228096549690900
1997-04-01	16.219070730191200
1997-07-01	14.645104775011400
1997-10-01	13.375719712094600
1998-01-01	12.328163005823800
1998-04-01	17.545009449181300
1998-07-01	20.515450168144700
1998-10-01	21.660870087845700
1999-01-01	21.616361033830600
1999-04-01	16.386674751552000
1999-07-01	12.887324331083200
1999-10-01	10.360009562620900
2000-01-01	8.430521256013610
2000-04-01	8.192270120362740
2000-07-01	8.237156270986480
2000-10-01	9.390543719786170
2001-01-01	10.473263137173000
2001-04-01	10.378794657534300
2001-07-01	9.908830707897390
2001-10-01	9.163961025645470
2002-01-01	7.708330825036850
2002-04-01	6.235110782228340
2002-07-01	4.831927899779510
2002-10-01	3.522292544081610
2003-01-01	2.786772651282550
2003-04-01	2.117250735283090
2003-07-01	1.398585305034340
2003-10-01	1.243003196532170
2004-01-01	1.383415106627520
2004-04-01	1.509480656346110
2004-07-01	1.786957126330730
2004-10-01	1.864507429642200
2005-01-01	1.626515306205020
2005-04-01	1.352543971346760
2005-07-01	0.986728773374414
2005-10-01	0.599440971421488
2006-01-01	0.263478031424176
2006-04-01	0.189001993194526
2006-07-01	0.393918635357383
2006-10-01	0.461444540275653