Quarter	Percent Change
1970-04-01	0.4755242693796370
1970-07-01	0.9465475782105620
1970-10-01	1.4065080482379700
1971-01-01	1.8493330128332300
1971-04-01	1.7427135236529300
1971-07-01	1.6410740490971400
1971-10-01	1.5439476460007600
1972-01-01	1.4509162230983500
1972-04-01	1.4635616241427100
1972-07-01	1.4753647060400100
1972-10-01	1.4863498135036600
1973-01-01	1.4965417022406500
1973-04-01	1.7891057922589400
1973-07-01	2.0667595952475100
1973-10-01	2.3277507301979600
1974-01-01	2.5707511984395700
1974-04-01	3.3778923804360000
1974-07-01	4.1106127380722900
1974-10-01	4.7581185103297600
1975-01-01	5.3150288027534000
1975-04-01	4.4651295136810900
1975-07-01	3.7174783984140000
1975-10-01	3.0473930655554200
1976-01-01	2.4363070809950200
1976-04-01	2.2862095609779500
1976-07-01	2.1450166871034900
1976-10-01	2.0117702806860600
1977-01-01	1.8856340259376800
1977-04-01	1.9941338816246500
1977-07-01	2.0957399294713200
1977-10-01	2.1904285662721900
1978-01-01	2.2782337717208200
1978-04-01	2.4425489869245200
1978-07-01	2.3418142107095600
1978-10-01	2.3104022971082500
1979-01-01	2.2643865941476100
1979-04-01	2.1853828013825800
1979-07-01	2.3612020932335400
1979-10-01	2.7044720885980700
1980-01-01	2.9522892243393800
1980-04-01	3.1587441167719300
1980-07-01	3.1877345370519700
1980-10-01	2.9818748989217800
1981-01-01	2.8010707598035800
1981-04-01	2.8116764416499900
1981-07-01	2.9071605889853300
1981-10-01	2.9640720614359800
1982-01-01	2.8470670374319100
1982-04-01	2.5017537952543200
1982-07-01	2.1592182494361500
1982-10-01	1.9904631048397800
1983-01-01	1.9999352183343000
1983-04-01	2.0598139940525900
1983-07-01	1.9521142113378600
1983-10-01	1.5979910837423700
1984-01-01	1.2898319813447800
1984-04-01	1.1099914914037000
1984-07-01	0.9434333884695840
1984-10-01	0.9167423836607480
1985-01-01	0.8949732145619420
1985-04-01	0.8117203485911560
1985-07-01	0.7794592434039000
1985-10-01	0.6921840246766230
1986-01-01	0.5602234090856710
1986-04-01	0.4571250335613550
1986-07-01	0.3591641809388010
1986-10-01	0.3520307858536690
1987-01-01	0.3691160476678470
1987-04-01	0.2879857707836450
1987-07-01	0.2525618661732590
1987-10-01	0.2485277651391590
1988-01-01	0.2318695672396750
1988-04-01	0.2659617830490060
1988-07-01	0.2522613961477330
1988-10-01	0.2436241409686890
1989-01-01	0.3203222848556570
1989-04-01	0.4208937699773960
1989-07-01	0.6205542087951020
1989-10-01	0.8051906161420510
1990-01-01	0.8842111018163180
1990-04-01	1.0031646264410800
1990-07-01	1.0163958443105400
1990-10-01	0.8866744507408390
1991-01-01	0.7604276494380640
1991-04-01	0.5542163008660120
1991-07-01	0.3244836804770810
1991-10-01	0.2241295863812970
1992-01-01	0.2623048453535810
1992-04-01	0.4151072270136190
1992-07-01	0.5507997103647350
1992-10-01	0.6055129933322040
1993-01-01	0.5370493175178350
1993-04-01	0.2884498552736510
1993-07-01	0.0626383970693048
1993-10-01	-0.0657545554354289
1994-01-01	-0.1746776123325620
1994-04-01	-0.1502323820344820
1994-07-01	-0.0098564532274858
1994-10-01	0.0834574283947609
1995-01-01	0.1868027748311630
1995-04-01	0.3248679996219390
1995-07-01	0.3579163370262050
1995-10-01	0.3467778793263620
1996-01-01	0.3525513127420770
1996-04-01	0.2459990161556220
1996-07-01	0.0512417781900052
1996-10-01	-0.0564414207716299
1997-01-01	-0.0543321617783715
1997-04-01	-0.0472525005424405
1997-07-01	-0.0398418364757103
1997-10-01	-0.0563503557295691
1998-01-01	-0.1259250707091260
1998-04-01	-0.1004528072976090
1998-07-01	0.0590803058616924
1998-10-01	0.1947940874343420
1999-01-01	0.2345747511287050
1999-04-01	0.2025272098508670
1999-07-01	0.1797103509981090
1999-10-01	0.2594784731303330
2000-01-01	0.3901894874019620
2000-04-01	0.5061636467290780
2000-07-01	0.5855889744439900
2000-10-01	0.5621100229098720
2001-01-01	0.5615303260343380
2001-04-01	0.6930834102906540
2001-07-01	0.7865883294037880
2001-10-01	0.7925731335147380
2002-01-01	0.7362168263234700
2002-04-01	0.6235596091754680
2002-07-01	0.5567759542449910
2002-10-01	0.5324478680877790
2003-01-01	0.5025851817586200
2003-04-01	0.4228834365743950
2003-07-01	0.2937449818143930
2003-10-01	0.2172117700171010
2004-01-01	0.1871603472611640
2004-04-01	0.1915752728337370
2004-07-01	0.2440616328075420
2004-10-01	0.3464825768090260
2005-01-01	0.4730056477458370
2005-04-01	0.5328406756394530
2005-07-01	0.5676531628625520
2005-10-01	0.5755634466975440
2006-01-01	0.5337254378717810
2006-04-01	0.5430565957428180
2006-07-01	0.5315704646800630
2006-10-01	0.4031423574056660
2007-01-01	0.2667176020796090
2007-04-01	0.2017495249238500
2007-07-01	0.2344950470920300
2007-10-01	0.3976779985082980
2008-01-01	0.6548591633240640
2008-04-01	0.8797915077878530
2008-07-01	0.9690060331468670
2008-10-01	0.9278128930282570
2009-01-01	0.7279343042355610
2009-04-01	0.4346549630573790
2009-07-01	0.2289452418333070
2009-10-01	0.1380858477223880
2010-01-01	0.1373419631312970
2010-04-01	0.2077368217668310
2010-07-01	0.2680990631294680
2010-10-01	0.2903671704420140
2011-01-01	0.2943152966325150