Quarter	Percent Change
1970-04-01	2.18508682814457000
1970-07-01	2.16086517344479000
1970-10-01	2.31552693362402000
1971-01-01	2.30862075817067000
1971-04-01	1.95311300187286000
1971-07-01	1.70733958638068000
1971-10-01	1.45444421135313000
1972-01-01	1.27502504698019000
1972-04-01	1.34342244378383000
1972-07-01	1.32131535300201000
1972-10-01	1.52788371364314000
1973-01-01	1.89306418140196000
1973-04-01	2.00778308235134000
1973-07-01	2.15303103758589000
1973-10-01	2.15628788762432000
1974-01-01	2.10286593351632000
1974-04-01	2.23317352429878000
1974-07-01	2.25507975650372000
1974-10-01	2.02422966196524000
1975-01-01	1.48959213320766000
1975-04-01	0.86333434450795500
1975-07-01	0.41894992003407100
1975-10-01	0.31646739545166300
1976-01-01	0.44891625090737400
1976-04-01	0.67996752634290200
1976-07-01	0.89447018846192900
1976-10-01	0.84491407903505800
1977-01-01	0.77754893860115400
1977-04-01	0.82776844719843900
1977-07-01	0.82882678468232700
1977-10-01	0.80677013892165800
1978-01-01	0.76571000953575300
1978-04-01	0.78680672106669900
1978-07-01	0.89781489663244800
1978-10-01	1.09478133270731000
1979-01-01	1.31212637644744000
1979-04-01	1.37403641461672000
1979-07-01	1.32251578547892000
1979-10-01	1.31098643657940000
1980-01-01	1.44081005539371000
1980-04-01	1.50378428187018000
1980-07-01	1.41208529478332000
1980-10-01	1.16355349598669000
1981-01-01	0.81027590631458200
1981-04-01	0.65753088370048800
1981-07-01	0.62053280449167300
1981-10-01	0.78634202844808500
1982-01-01	1.00575919702554000
1982-04-01	0.92794805119823300
1982-07-01	0.77845803038173900
1982-10-01	0.41549100171036900
1983-01-01	0.03986610279582970
1983-04-01	0.12248635390650800
1983-07-01	0.15148452072690100
1983-10-01	0.05403820038106680
1984-01-01	0.12774431524939900
1984-04-01	0.14552527128746500
1984-07-01	0.24294963058378900
1984-10-01	0.34067512808882800
1985-01-01	0.27859425532305700
1985-04-01	0.27910405899556200
1985-07-01	0.41128155839476800
1985-10-01	0.64769897259820800
1986-01-01	0.77351434936337000
1986-04-01	0.78062995230625100
1986-07-01	0.80492452025759000
1986-10-01	0.84588445384744500
1987-01-01	0.84320681405359600
1987-04-01	0.63129599634301200
1987-07-01	0.32308096601831400
1987-10-01	0.09071183696102600
1988-01-01	-0.01664395519230370
1988-04-01	-0.02999312792152740
1988-07-01	-0.03105514269896460
1988-10-01	-0.00233629383650992
1989-01-01	0.00280242765450751
1989-04-01	0.14299123015692600
1989-07-01	0.38261790305574600
1989-10-01	0.53122262197789700
1990-01-01	0.69173143343492400
1990-04-01	0.64460985365033600
1990-07-01	0.53479354487386600
1990-10-01	0.76176651143047800
1991-01-01	1.30909287481444000
1991-04-01	1.83058043108320000
1991-07-01	2.02217179121260000
1991-10-01	1.94438637543313000
1992-01-01	1.68065133306603000
1992-04-01	1.66755765307233000
1992-07-01	1.69995779102378000
1992-10-01	1.36566625772356000
1993-01-01	1.00614640443730000
1993-04-01	0.65275287481101400
1993-07-01	0.41311187793120000
1993-10-01	0.33526685760852800
1994-01-01	0.16270892280472100
1994-04-01	0.00340629770219200
1994-07-01	0.10102763011886100
1994-10-01	0.36675495428972500
1995-01-01	0.62775528588724200
1995-04-01	0.78612428007297000
1995-07-01	0.65215113026164900
1995-10-01	0.30466341444097500
1996-01-01	-0.02883977716767180
1996-04-01	-0.23165094719795400
1996-07-01	-0.27358819767007300
1996-10-01	-0.22921782759521300
1997-01-01	-0.34180060610100400
1997-04-01	-0.57684176405255200
1997-07-01	-0.49360227199280700
1997-10-01	-0.23990803051901700
1998-01-01	0.06574991931223850
1998-04-01	0.43545012027447300
1998-07-01	0.54856865512780600
1998-10-01	0.44679201205098400
1999-01-01	0.28332573064574300
1999-04-01	0.04809701689957780
1999-07-01	-0.20804665495023300
1999-10-01	-0.21359865473134500
2000-01-01	-0.00512892818297914
2000-04-01	0.15974848191373900
2000-07-01	0.24564416410735800
2000-10-01	0.11237311589828300
2001-01-01	-0.05130686153465910
2001-04-01	-0.00503856611536007
2001-07-01	0.03292023271677070
2001-10-01	0.02629977140174790
2002-01-01	0.05061449427988460
2002-04-01	0.07111522405417430
2002-07-01	0.14500184148052500
2002-10-01	0.27487733946525800
2003-01-01	0.29824164997504400
2003-04-01	0.10589211098150600
2003-07-01	-0.12397627094697300
2003-10-01	-0.22738109759597600
2004-01-01	-0.25387808369523500
2004-04-01	-0.18456634218034800
2004-07-01	-0.11252443821768000
2004-10-01	-0.13601538855839300
2005-01-01	-0.26129143597210800
2005-04-01	-0.46633003580224100
2005-07-01	-0.52418050646019100
2005-10-01	-0.55257860599704700
2006-01-01	-0.65297900299022000
2006-04-01	-0.63162392622081100
2006-07-01	-0.61654746579285800
2006-10-01	-0.59956048356767800
2007-01-01	-0.40824723690483500
2007-04-01	-0.25403300477623600
2007-07-01	-0.16049153123559000
2007-10-01	0.08519217158765020
2008-01-01	0.33240197030991600
2008-04-01	0.59825954313346300
2008-07-01	0.83672726768626700
2008-10-01	0.80515120999656000
2009-01-01	0.77685352887728000
2009-04-01	0.79164076390501700
2009-07-01	0.66058353750410400
2009-10-01	0.51058886769933300
2010-01-01	0.30882883079036900
2010-04-01	0.09932669830393760
2010-07-01	0.04980694126327800
2010-10-01	0.12162107477794500
2011-01-01	0.20042760754859300