Quarter	Percent Change
1970-04-01	1.77580415222255000
1970-07-01	1.99856728744495000
1970-10-01	2.38699439769292000
1971-01-01	2.32203342326523000
1971-04-01	1.96724653467954000
1971-07-01	1.95536093381287000
1971-10-01	2.20496870744016000
1972-01-01	2.39478162746985000
1972-04-01	2.25503894850056000
1972-07-01	1.74632667119124000
1972-10-01	1.67323319918108000
1973-01-01	2.01362727257573000
1973-04-01	2.40630195134820000
1973-07-01	2.72414044441264000
1973-10-01	2.30774830721655000
1974-01-01	2.00026198210372000
1974-04-01	2.22352151828844000
1974-07-01	2.28951553595771000
1974-10-01	2.30201700886924000
1975-01-01	2.05001683275040000
1975-04-01	1.49555430095228000
1975-07-01	0.88747747068504600
1975-10-01	0.47324615260108300
1976-01-01	0.32815651457766200
1976-04-01	0.32791286279726800
1976-07-01	0.43880668219421600
1976-10-01	0.49528471534473700
1977-01-01	0.50938981525090500
1977-04-01	0.48091268681618500
1977-07-01	0.39902888101080800
1977-10-01	0.36964560473784300
1978-01-01	0.43515273239643800
1978-04-01	0.58401403604990100
1978-07-01	0.65886669608089800
1978-10-01	0.64822493329209700
1979-01-01	0.49542198997309300
1979-04-01	0.48192226723374900
1979-07-01	0.99393080769413000
1979-10-01	1.47769969631905000
1980-01-01	1.93979109141632000
1980-04-01	2.20303648859869000
1980-07-01	1.87630445987067000
1980-10-01	1.49857009884761000
1981-01-01	1.13578433969277000
1981-04-01	0.90613507817667200
1981-07-01	0.98052842954622500
1981-10-01	1.37941063361765000
1982-01-01	1.85941597917825000
1982-04-01	1.73367420302996000
1982-07-01	1.05482001455404000
1982-10-01	0.33269113086519600
1983-01-01	-0.06318101272597620
1983-04-01	0.00986259150461144
1983-07-01	0.10174453162683100
1983-10-01	-0.07431950024200550
1984-01-01	-0.06490032399126000
1984-04-01	0.33549440478739500
1984-07-01	0.64540380569770500
1984-10-01	0.51367334114979700
1985-01-01	0.24087980360490800
1985-04-01	0.01632859963985900
1985-07-01	0.10974699845192400
1985-10-01	0.64611255808905500
1986-01-01	0.76991192675746900
1986-04-01	0.56817463986997800
1986-07-01	0.61611650396667900
1986-10-01	0.70550158910944000
1987-01-01	0.58593843041370600
1987-04-01	0.20661633381798900
1987-07-01	-0.02979871089831520
1987-10-01	-0.11010799460177400
1988-01-01	-0.05414595888408310
1988-04-01	0.07065676657064510
1988-07-01	-0.06177641958096430
1988-10-01	-0.05969741852788080
1989-01-01	0.15579848626862800
1989-04-01	0.40613533503536400
1989-07-01	0.55577066601938300
1989-10-01	0.29742626693761900
1990-01-01	0.09857946310778680
1990-04-01	-0.01931471884151580
1990-07-01	-0.11182636269105300
1990-10-01	0.46771838456767800
1991-01-01	1.27260031685959000
1991-04-01	1.76365010262057000
1991-07-01	1.78465926694601000
1991-10-01	1.32543453780069000
1992-01-01	1.20825325143905000
1992-04-01	1.52963817284564000
1992-07-01	1.65834295227047000
1992-10-01	1.55946190426900000
1993-01-01	1.14844640034906000
1993-04-01	0.63390027800205100
1993-07-01	0.61506114035639300
1993-10-01	0.47520921129112700
1994-01-01	0.06727463512481060
1994-04-01	-0.06243802357802490
1994-07-01	-0.16602565384957800
1994-10-01	0.05206986065340060
1995-01-01	0.51641641796442300
1995-04-01	0.71024252377410000
1995-07-01	0.66204481169043600
1995-10-01	0.40945737696497400
1996-01-01	0.05114451753979090
1996-04-01	-0.22941846448501300
1996-07-01	-0.20627246925434600
1996-10-01	-0.12199285347262100
1997-01-01	-0.43715127886613400
1997-04-01	-0.83275884050972300
1997-07-01	-0.85302143502391100
1997-10-01	-0.80355594371845600
1998-01-01	-0.63552719886224800
1998-04-01	-0.25396751936217700
1998-07-01	-0.08719444310740960
1998-10-01	-0.05431976368337700
1999-01-01	-0.00546953103850094
1999-04-01	-0.14451412341102800
1999-07-01	-0.53451430789892200
1999-10-01	-0.73142468319163800
2000-01-01	-0.64827267127941400
2000-04-01	-0.46906946110871900
2000-07-01	-0.15386261185321200
2000-10-01	-0.13596974104337600
2001-01-01	-0.31147234006443200
2001-04-01	-0.15470823439303400
2001-07-01	-0.01225492780028600
2001-10-01	-0.04559423259884380
2002-01-01	0.12518803804960400
2002-04-01	0.27961096394306300
2002-07-01	0.17497789497859100
2002-10-01	0.24609784975409600
2003-01-01	0.26569955884896000
2003-04-01	-0.25280578398163700
2003-07-01	-0.63156146323220600
2003-10-01	-0.72989230177226400
2004-01-01	-0.88333907017171100
2004-04-01	-0.66493990341655000
2004-07-01	-0.35263340652329300
2004-10-01	-0.29315878626746200
2005-01-01	-0.30243885191422400
2005-04-01	-0.45206540725697900
2005-07-01	-0.49764611418575600
2005-10-01	-0.48582665537409400
2006-01-01	-0.58499462923181800
2006-04-01	-0.60222963163854000
2006-07-01	-0.63842972018324200
2006-10-01	-0.61342334868296800
2007-01-01	-0.27433993794692000
2007-04-01	0.11221316606819300
2007-07-01	0.36366462325628300
2007-10-01	0.67779097553703100
2008-01-01	0.88729891520420200
2008-04-01	1.08810578831782000
2008-07-01	1.30867249312193000
2008-10-01	1.27204100198964000
2009-01-01	1.02860562505408000
2009-04-01	0.43578648639157200
2009-07-01	-0.17118258638805500
2009-10-01	-0.52881679005103700
2010-01-01	-0.76916157841019000
2010-04-01	-0.72312429635612800
2010-07-01	-0.55790809549324400
2010-10-01	-0.47341208966520900
2011-01-01	-0.41862048413283200