Quarter	Percent Change
1970-04-01	0.59919157982951200
1970-07-01	1.19124531801834000
1970-10-01	1.76583257910489000
1971-01-01	2.31358932476316000
1971-04-01	1.94449250367306000
1971-07-01	1.59666521238902000
1971-10-01	1.26571795490749000
1972-01-01	0.94786613633185900
1972-04-01	0.85338988831172300
1972-07-01	0.76131683926529000
1972-10-01	0.67135366306284600
1973-01-01	0.58322738372595500
1973-04-01	0.94830997304899100
1973-07-01	1.30440463874138000
1973-10-01	1.64791229841058000
1974-01-01	1.97565847078293000
1974-04-01	3.24369806251524000
1974-07-01	4.40706193147806000
1974-10-01	5.43290440103567000
1975-01-01	6.30236905179562000
1975-04-01	5.21558311597614000
1975-07-01	4.27925865736625000
1975-10-01	3.45368110453766000
1976-01-01	2.71011080043828000
1976-04-01	2.72049021501401000
1976-07-01	2.72815935286512000
1976-10-01	2.73330998097812000
1977-01-01	2.73612577707662000
1977-04-01	2.78541129655809000
1977-07-01	2.82877385656963000
1977-10-01	2.86653141732988000
1978-01-01	2.89900632940742000
1978-04-01	2.30027852824534000
1978-07-01	1.74312857023229000
1978-10-01	1.21649655237121000
1979-01-01	0.71107868411545100
1979-04-01	1.13717219495633000
1979-07-01	1.55065279993834000
1979-10-01	1.94673251863892000
1980-01-01	2.32130079619098000
1980-04-01	2.25616562079352000
1980-07-01	2.19418783854009000
1980-10-01	2.13514080320314000
1981-01-01	2.07881893164590000
1981-04-01	1.52128555148554000
1981-07-01	0.99101083406314300
1981-10-01	0.47878762902157400
1982-01-01	-0.02359798810610370
1982-04-01	0.62747458998446000
1982-07-01	1.27058014623343000
1982-10-01	1.89353943473110000
1983-01-01	2.48537834518160000
1983-04-01	2.58289246981676000
1983-07-01	2.67167323525556000
1983-10-01	2.75196405660672000
1984-01-01	2.82405882059266000
1984-04-01	2.55246728690943000
1984-07-01	2.29973833105482000
1984-10-01	2.06309298225776000
1985-01-01	1.84018197054577000
1985-04-01	1.75098703866605000
1985-07-01	1.66587367707558000
1985-10-01	1.58449655404162000
1986-01-01	1.50654492061339000
1986-04-01	1.49156442622192000
1986-07-01	1.47691472856649000
1986-10-01	1.46258458699020000
1987-01-01	1.44856325222084000
1987-04-01	1.33070280172586000
1987-07-01	1.21732705078421000
1987-10-01	1.10793922934294000
1988-01-01	1.00208947646182000
1988-04-01	1.54721502594364000
1988-07-01	2.07025153599981000
1988-10-01	2.56378523018901000
1989-01-01	3.02183567618341000
1989-04-01	2.70476530527762000
1989-07-01	2.41111638424573000
1989-10-01	2.13716874753137000
1990-01-01	1.87981247102107000
1990-04-01	1.78987919030126000
1990-07-01	1.70412899677403000
1990-10-01	1.62220762020000000
1991-01-01	1.54379662989278000
1991-04-01	1.08835256404355000
1991-07-01	0.64931244181795700
1991-10-01	0.22055778262889800
1992-01-01	-0.20355903147498500
1992-04-01	-0.42538434085722900
1992-07-01	-0.64955753395807300
1992-10-01	-0.87761409910971800
1993-01-01	-1.11117566300634000
1993-04-01	1.22628117054550000
1993-07-01	1.29049995372436000
1993-10-01	0.96409649003065000
1994-01-01	0.60033656368161500
1994-04-01	0.54202798921383500
1994-07-01	0.60391414433099200
1994-10-01	0.72951386119069400
1995-01-01	0.87773811287435400
1995-04-01	0.90302188364252100
1995-07-01	0.79187536090449400
1995-10-01	0.63925455229736600
1996-01-01	0.58607244123169200
1996-04-01	0.53171522933388400
1996-07-01	0.37092434631289400
1996-10-01	0.38795473038398900
1997-01-01	0.31178707093047000
1997-04-01	0.07810015638928080
1997-07-01	0.14778506484199400
1997-10-01	0.34202797334178200
1998-01-01	0.47466842745508100
1998-04-01	0.56126832870824200
1998-07-01	0.72145892433437500
1998-10-01	0.59773843045554300
1999-01-01	0.15005469456093000
1999-04-01	0.17467539288026300
1999-07-01	0.48919441542738100
1999-10-01	0.83748665030657500
2000-01-01	1.39976066770502000
2000-04-01	1.64584832550151000
2000-07-01	1.53506544071414000
2000-10-01	1.62312254442176000
2001-01-01	1.70393212919611000
2001-04-01	1.21148986192867000
2001-07-01	0.49221963820168000
2001-10-01	0.20246813057008800
2002-01-01	-0.00341935341757394
2002-04-01	-0.18316644040200200
2002-07-01	0.09685984922931570
2002-10-01	0.07274483270717490
2003-01-01	-0.37033953918679400
2003-04-01	-0.39070144196597400
2003-07-01	-0.41207682162200500
2003-10-01	-0.44587523344107400
2004-01-01	-0.00662343029953915
2004-04-01	0.29088884365143100
2004-07-01	0.20026560279545500
2004-10-01	0.15456827853198300
2005-01-01	0.09500904804009320
2005-04-01	-0.04033355853063960
2005-07-01	-0.09584371262833120
2005-10-01	-0.31271090008152300
2006-01-01	-0.45866620349895800
2006-04-01	-0.16579546157383400
2006-07-01	0.26505272052871700
2006-10-01	0.91897086380832400
2007-01-01	1.44574061564705000
2007-04-01	1.20233213071361000
2007-07-01	0.57713290685937200
2007-10-01	0.02506115347125260
2008-01-01	-0.08933993969884060
2008-04-01	0.40790365652341700
2008-07-01	1.06530606357006000
2008-10-01	1.16247255259155000
2009-01-01	0.63805862031267600
2009-04-01	0.34676149525483900
2009-07-01	0.27940022715252000
2009-10-01	0.22360434097819500
2010-01-01	0.28292736679081800
2010-04-01	0.02639192961144630
2010-07-01	-0.24702151098995700
2010-10-01	-0.13858765274783400
2011-01-01	0.06326539387212780