Quarter	Percent Change
1970-04-01	1.09620855084849000
1970-07-01	2.16864418889408000
1970-10-01	3.18391849378714000
1971-01-01	4.11423085318886000
1971-04-01	3.07230880375645000
1971-07-01	2.12760029537657000
1971-10-01	1.24791843482748000
1972-01-01	0.40747532628495700
1972-04-01	1.14444271442138000
1972-07-01	1.86175698370591000
1972-10-01	2.54464535158726000
1973-01-01	3.18062602292063000
1973-04-01	2.37206272731716000
1973-07-01	1.62304518298550000
1973-10-01	0.91415353382148700
1974-01-01	0.22908972023523900
1974-04-01	1.15565865708711000
1974-07-01	2.05895674010054000
1974-10-01	2.91543022878249000
1975-01-01	3.70541281123753000
1975-04-01	3.02413679582792000
1975-07-01	2.40259802037999000
1975-10-01	1.82595829668172000
1976-01-01	1.28227521173056000
1976-04-01	1.44982704804429000
1976-07-01	1.61026695985497000
1976-10-01	1.76303685817121000
1977-01-01	1.90769209021073000
1977-04-01	2.27253568762111000
1977-07-01	2.61369375643925000
1977-10-01	2.92879862891910000
1978-01-01	3.21627910263919000
1978-04-01	-0.40217141012169600
1978-07-01	-0.52810768129687700
1978-10-01	-0.59887949694805600
1979-01-01	-0.67215748483822400
1979-04-01	-0.36741622060323500
1979-07-01	0.43874116005157800
1979-10-01	1.35877354392511000
1980-01-01	2.27529680203024000
1980-04-01	2.66519522848996000
1980-07-01	2.58368270587688000
1980-10-01	2.53415574850165000
1981-01-01	2.33241567543044000
1981-04-01	2.47789279116805000
1981-07-01	3.09849806728894000
1981-10-01	3.44645101677329000
1982-01-01	3.59873142871590000
1982-04-01	3.43887226350241000
1982-07-01	2.68675828328526000
1982-10-01	1.97804904534724000
1983-01-01	1.74706733976453000
1983-04-01	1.65503593813964000
1983-07-01	1.48396046762400000
1983-10-01	1.17355085891808000
1984-01-01	0.64618451401678200
1984-04-01	0.16867224604483200
1984-07-01	0.01105656582751860
1984-10-01	0.29747197033715400
1985-01-01	0.79330819779999400
1985-04-01	1.26763340459128000
1985-07-01	1.77809967113509000
1985-10-01	2.04166814371432000
1986-01-01	2.32867355347228000
1986-04-01	2.85958949068263000
1986-07-01	3.12985276126051000
1986-10-01	3.24076774521066000
1987-01-01	3.06302114152380000
1987-04-01	2.42308291312291000
1987-07-01	1.80984058031920000
1987-10-01	1.38281834779563000
1988-01-01	1.15497625101960000
1988-04-01	1.07942862226263000
1988-07-01	0.96698305334272500
1988-10-01	0.71743742742331400
1989-01-01	0.27581100707528500
1989-04-01	-0.10257519147297100
1989-07-01	-0.20113663597435200
1989-10-01	-0.07313870934899800
1990-01-01	0.19651735958603800
1990-04-01	0.39170259617323900
1990-07-01	0.41423103445065600
1990-10-01	0.45631597242811600
1991-01-01	0.59585971788781600
1991-04-01	0.70598014145194500
1991-07-01	0.77618432495733500
1991-10-01	0.58023461873681300
1992-01-01	0.29650209230547400
1992-04-01	0.31587986414027000
1992-07-01	0.34333061907912600
1992-10-01	0.14791124369103500
1993-01-01	-0.30531466388544500
1993-04-01	-0.73015177895226800
1993-07-01	-0.83615442396475300
1993-10-01	-0.56394592682805600
1994-01-01	-0.12390739450593000
1994-04-01	0.08462544944028110
1994-07-01	0.07880754223712360
1994-10-01	0.11143501951963400
1995-01-01	0.33899961730223500
1995-04-01	0.48906930529303400
1995-07-01	0.50102563122512600
1995-10-01	0.34297601267521100
1996-01-01	-0.00631530543824696
1996-04-01	-0.14998655156925800
1996-07-01	-0.09366336199582410
1996-10-01	0.02216068614767110
1997-01-01	0.13492096817080000
1997-04-01	0.33622523929349300
1997-07-01	0.64157312635130700
1997-10-01	1.02309915251171000
1998-01-01	1.45252961613196000
1998-04-01	1.68542236458868000
1998-07-01	1.69880493520447000
1998-10-01	1.43368994724933000
1999-01-01	1.03140689978752000
1999-04-01	0.65631965960035300
1999-07-01	0.41871698572651000
1999-10-01	0.54613903227258900
2000-01-01	0.86463902919062700
2000-04-01	1.03966816604021000
2000-07-01	0.90442173788457900
2000-10-01	0.63400352685406100
2001-01-01	0.46911123679415300
2001-04-01	0.41379464265945800
2001-07-01	0.48177018607236300
2001-10-01	0.65599133312376300
2002-01-01	0.67486466638243900
2002-04-01	0.60628307341384000
2002-07-01	0.57566811610795600
2002-10-01	0.21986707227062500
2003-01-01	-0.26369629797220300
2003-04-01	-0.47504837603936300
2003-07-01	-0.49279596913639600
2003-10-01	-0.37120138852419700
2004-01-01	0.03341347450338570
2004-04-01	0.53953882339927200
2004-07-01	0.72481958016960000
2004-10-01	0.67589089685320600
2005-01-01	0.38821443335082600
2005-04-01	-0.02944619550855240
2005-07-01	-0.15635511083027000
2005-10-01	-0.06642320139924250
2006-01-01	0.01922028909107160
2006-04-01	0.16303152027987300
2006-07-01	0.38637295841458300
2006-10-01	0.82944009651191100
2007-01-01	1.50660705763239000
2007-04-01	1.87213345062912000
2007-07-01	1.95051771015756000
2007-10-01	2.10502053931333000
2008-01-01	2.17969538399237000
2008-04-01	2.07014571570849000
2008-07-01	1.79276353591852000
2008-10-01	1.30938777241291000
2009-01-01	0.74641956148713400
2009-04-01	0.39689317262221100
2009-07-01	0.33597126848538400
2009-10-01	0.30814319424579600
2010-01-01	0.39167235965117900
2010-04-01	0.61680411537474300
2010-07-01	0.63485104244611500
2010-10-01	0.56095435097852600
2011-01-01	0.44971505010952600
2011-04-01	0.28581135056182400