Quarter	Percent Change
1970-04-01	2.00651012335193000
1970-07-01	2.05984131507403000
1970-10-01	2.29947110262665000
1971-01-01	2.28598802757207000
1971-04-01	2.01926815505337000
1971-07-01	1.96738087495002000
1971-10-01	1.92209642233268000
1972-01-01	1.77407547028611000
1972-04-01	1.74378987501448000
1972-07-01	1.72952696049246000
1972-10-01	1.97986364437585000
1973-01-01	2.43877526177535000
1973-04-01	2.51228457707137000
1973-07-01	2.33541805094404000
1973-10-01	2.07183452459588000
1974-01-01	2.00085916155568000
1974-04-01	2.24388044851510000
1974-07-01	2.30685942639207000
1974-10-01	2.11896229677789000
1975-01-01	1.75771958569694000
1975-04-01	1.28371020914185000
1975-07-01	0.85358667430191600
1975-10-01	0.71096029578578100
1976-01-01	0.68348626823167000
1976-04-01	0.65979777125237000
1976-07-01	0.71596855491503300
1976-10-01	0.56539623458603400
1977-01-01	0.43670701547807700
1977-04-01	0.45683371961609800
1977-07-01	0.45372372989872000
1977-10-01	0.44400686320250300
1978-01-01	0.44543298985925300
1978-04-01	0.59823664961766300
1978-07-01	0.70931399366270200
1978-10-01	0.66482221160077600
1979-01-01	0.55629122442593400
1979-04-01	0.54374065142909600
1979-07-01	0.91583210051654000
1979-10-01	1.38045428730494000
1980-01-01	1.77908687592733000
1980-04-01	1.86671570751647000
1980-07-01	1.54015550623099000
1980-10-01	1.25750000204946000
1981-01-01	1.01110035327862000
1981-04-01	0.91461886470052900
1981-07-01	0.98946162617062100
1981-10-01	1.14426973285211000
1982-01-01	1.36396492627406000
1982-04-01	1.24218385176623000
1982-07-01	0.76723152405950400
1982-10-01	0.21043482541542700
1983-01-01	-0.08696594169099650
1983-04-01	0.12905090846156800
1983-07-01	0.32763174808405400
1983-10-01	0.32189344166965700
1984-01-01	0.22914663103417200
1984-04-01	0.10599838636707100
1984-07-01	0.20300050129244000
1984-10-01	0.25920728081737200
1985-01-01	0.26136997587025500
1985-04-01	0.20951535874807400
1985-07-01	0.19390824925822000
1985-10-01	0.43177253629808200
1986-01-01	0.47148553646204500
1986-04-01	0.41079437116809300
1986-07-01	0.45101991934066600
1986-10-01	0.45031078328499000
1987-01-01	0.43883765652072500
1987-04-01	0.33666925977181900
1987-07-01	0.24114717048825200
1987-10-01	0.13738529162132100
1988-01-01	0.03492012436507310
1988-04-01	0.01532925217562740
1988-07-01	-0.02143569770551560
1988-10-01	0.05105945638974700
1989-01-01	0.23503534902062600
1989-04-01	0.42111724811491700
1989-07-01	0.43235129584652000
1989-10-01	0.21238981959094900
1990-01-01	0.17472696887722700
1990-04-01	0.24112951560406400
1990-07-01	0.34777388699023600
1990-10-01	0.84330660518678100
1991-01-01	1.42448402341593000
1991-04-01	1.79927420332116000
1991-07-01	1.99374546240542000
1991-10-01	1.71818236936643000
1992-01-01	1.30194901135485000
1992-04-01	1.30219617642848000
1992-07-01	1.24624974132519000
1992-10-01	1.07856714854492000
1993-01-01	0.91182277920632200
1993-04-01	0.57945321853095600
1993-07-01	0.49808290431801000
1993-10-01	0.51790621020013800
1994-01-01	0.37430675263248000
1994-04-01	0.16777094333887700
1994-07-01	0.01643110293050140
1994-10-01	0.04918404288330820
1995-01-01	0.14976996849105600
1995-04-01	0.31889527852236000
1995-07-01	0.31496195143178200
1995-10-01	0.04562623587722760
1996-01-01	-0.18027303896148700
1996-04-01	-0.24527271008029900
1996-07-01	-0.15439975122029300
1996-10-01	0.04576860126192870
1997-01-01	0.01844018628280510
1997-04-01	-0.29454096423373000
1997-07-01	-0.33952038089204300
1997-10-01	-0.23015985802836700
1998-01-01	-0.09295732520844000
1998-04-01	0.20290248112176200
1998-07-01	0.32294877938706500
1998-10-01	0.38030669887206900
1999-01-01	0.53020795258449500
1999-04-01	0.41093460724917000
1999-07-01	0.09692003915058950
1999-10-01	0.05276926279158920
2000-01-01	0.20035673074691900
2000-04-01	0.36104282616083800
2000-07-01	0.52880655422800000
2000-10-01	0.29469198476455700
2001-01-01	-0.13209555071498700
2001-04-01	-0.13698260690763100
2001-07-01	-0.07920149616012090
2001-10-01	-0.09781311246561330
2002-01-01	0.09190004032926840
2002-04-01	0.30432244287869800
2002-07-01	0.38705910368495100
2002-10-01	0.43600740840316800
2003-01-01	0.40538233350506600
2003-04-01	0.12297532376658900
2003-07-01	-0.03645214408767760
2003-10-01	0.10420832213563900
2004-01-01	0.06836846992788300
2004-04-01	-0.02717923753226660
2004-07-01	-0.02093195727664040
2004-10-01	-0.07407268793095340
2005-01-01	-0.08491533028432620
2005-04-01	-0.14668975037369100
2005-07-01	-0.29863112383846900
2005-10-01	-0.47319509907752600
2006-01-01	-0.60031039931717300
2006-04-01	-0.49515870765389500
2006-07-01	-0.34680162081775000
2006-10-01	-0.25053693506161300
2007-01-01	-0.00403429706901638
2007-04-01	0.17920468096736900
2007-07-01	0.27755141518579700
2007-10-01	0.55766431633792600
2008-01-01	0.75226914498024200
2008-04-01	0.93256490294628400
2008-07-01	1.15571017646984000
2008-10-01	1.08312726167799000
2009-01-01	0.81875242434886100
2009-04-01	0.36006640236417600
2009-07-01	-0.07235757324077330
2009-10-01	-0.28316042495366300
2010-01-01	-0.33004569078333500
2010-04-01	-0.10190993057023500
2010-07-01	0.12061289287323200
2010-10-01	0.22323014025859800
2011-01-01	0.28539500049330200