Quarter	Percent Change
1970-04-01	1.09844591236664000
1970-07-01	2.17302248061784000
1970-10-01	3.19020968183263000
1971-01-01	4.12210894761088000
1971-04-01	3.71027746708676000
1971-07-01	3.33779565954965000
1971-10-01	2.99798396278094000
1972-01-01	2.68547232438786000
1972-04-01	2.85828097690097000
1972-07-01	3.01514002248656000
1972-10-01	3.15626072723890000
1973-01-01	3.28204167571468000
1973-04-01	4.17136377699632000
1973-07-01	4.95815804094290000
1973-10-01	5.63270872982361000
1974-01-01	6.19266501985362000
1974-04-01	5.99059947388606000
1974-07-01	5.80208201260363000
1974-10-01	5.62574358680369000
1975-01-01	5.46039765536026000
1975-04-01	5.65454102668771000
1975-07-01	4.86537426830561000
1975-10-01	3.59424732022953000
1976-01-01	2.78523482437297000
1976-04-01	2.36048514483838000
1976-07-01	2.31041316617664000
1976-10-01	2.13082874948969000
1977-01-01	1.40222331945673000
1977-04-01	0.94130503521126400
1977-07-01	1.01621873095658000
1977-10-01	0.92948646264657600
1978-01-01	0.85282466865654800
1978-04-01	0.95686035259982800
1978-07-01	1.38358486507368000
1978-10-01	2.36589040952171000
1979-01-01	2.77333602275113000
1979-04-01	2.28502487719803000
1979-07-01	2.59509120257199000
1979-10-01	3.87773544574930000
1980-01-01	4.59315272860230000
1980-04-01	4.35691804948573000
1980-07-01	3.38506451006922000
1980-10-01	2.23640955297941000
1981-01-01	2.12062241217917000
1981-04-01	2.62080840638282000
1981-07-01	2.71823859645292000
1981-10-01	2.69944423454216000
1982-01-01	2.16429251325133000
1982-04-01	1.40698108481472000
1982-07-01	0.88584600338405200
1982-10-01	0.65928064365607700
1983-01-01	1.84835031890057000
1983-04-01	3.25520697927920000
1983-07-01	3.88076104388724000
1983-10-01	3.66658210528998000
1984-01-01	2.30651993042827000
1984-04-01	1.28992474648205000
1984-07-01	1.16441908592526000
1984-10-01	1.63381388961606000
1985-01-01	2.03692353919479000
1985-04-01	2.27054703599906000
1985-07-01	2.64048451052253000
1985-10-01	2.00865479162628000
1986-01-01	1.10751090178493000
1986-04-01	1.29631939083583000
1986-07-01	1.70683019770376000
1986-10-01	2.50729645656897000
1987-01-01	3.66480711066403000
1987-04-01	3.83531711488825000
1987-07-01	3.37734980201981000
1987-10-01	2.97545880487043000
1988-01-01	2.37599563847937000
1988-04-01	1.72672057194207000
1988-07-01	1.48271311565693000
1988-10-01	1.46017327525276000
1989-01-01	2.10282938852163000
1989-04-01	3.37188473327611000
1989-07-01	4.00537989221382000
1989-10-01	3.47067066899241000
1990-01-01	2.40392675140954000
1990-04-01	1.83034220673678000
1990-07-01	1.52886224634796000
1990-10-01	1.31931716564496000
1991-01-01	1.13580254291787000
1991-04-01	0.33102944411509300
1991-07-01	-0.57800363100188300
1991-10-01	-0.99578064170078600
1992-01-01	-1.26620426217492000
1992-04-01	-1.62100134599613000
1992-07-01	-1.92124721678188000
1992-10-01	-1.78563230017072000
1993-01-01	-1.45699304866640000
1993-04-01	-1.35249185047245000
1993-07-01	-0.95021981001138000
1993-10-01	-0.47945913585582900
1994-01-01	-0.03870799540501660
1994-04-01	0.76665593476354300
1994-07-01	1.21277631989813000
1994-10-01	1.15023039022741000
1995-01-01	0.98203207029608100
1995-04-01	0.56500981300268800
1995-07-01	-0.01676802701004530
1995-10-01	-0.39694454407429700
1996-01-01	-0.54900653966709000
1996-04-01	-0.39291553747941800
1996-07-01	0.07543521348984130
1996-10-01	0.42119841898758700
1997-01-01	0.29964918296507200
1997-04-01	0.00983767689522497
1997-07-01	0.17952676311037000
1997-10-01	0.82776462801914100
1998-01-01	1.49518844763365000
1998-04-01	1.88177231144737000
1998-07-01	1.86745770535695000
1998-10-01	1.49898616687633000
1999-01-01	1.27530970728857000
1999-04-01	1.36822892988542000
1999-07-01	1.48320721840879000
1999-10-01	1.75690842457494000
2000-01-01	2.05193096636183000
2000-04-01	1.98132991607244000
2000-07-01	1.84184669480732000
2000-10-01	1.85701499341044000
2001-01-01	1.87214396840624000
2001-04-01	1.72224140478757000
2001-07-01	1.46627121228979000
2001-10-01	1.30824222138203000
2002-01-01	1.06980135944604000
2002-04-01	0.74634789185918100
2002-07-01	0.63617281481980300
2002-10-01	0.45931541167601300
2003-01-01	0.30428815136760300
2003-04-01	0.71324788579402000
2003-07-01	1.01997469113782000
2003-10-01	0.85578588608000800
2004-01-01	0.74983912662442000
2004-04-01	0.65341570032239800
2004-07-01	0.67777445475834300
2004-10-01	1.03608158406320000
2005-01-01	1.29861948652454000
2005-04-01	1.35256170746042000
2005-07-01	1.37855553296965000
2005-10-01	1.25503978952272000
2006-01-01	1.17438759408459000
2006-04-01	1.15054831831821000
2006-07-01	0.88440224576741300
2006-10-01	0.70836466293688800
2007-01-01	0.68195647844657900
2007-04-01	0.69610275095274600
2007-07-01	1.05306662279861000
2007-10-01	1.34540850846396000
2008-01-01	1.34085553900921000
2008-04-01	1.23773884815136000
2008-07-01	1.17389548655156000
2008-10-01	1.27537904514920000
2009-01-01	1.33371412340731000
2009-04-01	1.36771786878029000
2009-07-01	1.31003508505186000
2009-10-01	0.98411631846479600
2010-01-01	0.67271357888158800
2010-04-01	0.52935865864799300
2010-07-01	0.36530454619883600
2010-10-01	0.36126164639618300
2011-01-01	0.56375980882739800