Quarter	Percent Change
1970-04-01	1.3868611576444600
1970-07-01	2.7357809732585500
1970-10-01	3.9943935317937300
1971-01-01	5.1212933853342900
1971-04-01	4.6166670128143800
1971-07-01	4.1690673248513500
1971-10-01	3.7681036761338600
1972-01-01	3.4056657134355500
1972-04-01	3.1887035988522900
1972-07-01	2.9886089929964800
1972-10-01	2.8032719298525700
1973-01-01	2.6309091663972100
1973-04-01	2.6548269487392400
1973-07-01	2.6751660860604700
1973-10-01	2.6921442870167500
1974-01-01	2.7059741990677600
1974-04-01	3.0753977968514700
1974-07-01	3.4112069828087900
1974-10-01	3.7121460357112800
1975-01-01	3.9779428356921700
1975-04-01	3.4490860785301900
1975-07-01	2.9699786783733300
1975-10-01	2.5307054432249200
1976-01-01	2.1233598392397000
1976-04-01	2.0094384029681300
1976-07-01	1.9014576057576600
1976-10-01	1.7988552386250300
1977-01-01	1.7011328410220700
1977-04-01	1.9884322729885500
1977-07-01	2.2592622854483000
1977-10-01	2.5121050151524900
1978-01-01	2.7458832835681100
1978-04-01	3.2306084756195800
1978-07-01	2.6581298853724500
1978-10-01	1.7350831554890400
1979-01-01	0.7689016455999930
1979-04-01	0.0774939220137262
1979-07-01	0.3376490845262510
1979-10-01	1.2316022542186600
1980-01-01	2.2769289781949500
1980-04-01	3.3607259092869200
1980-07-01	4.1166694755440500
1980-10-01	4.4277214174333200
1981-01-01	4.3325028613698300
1981-04-01	4.0046426561863600
1981-07-01	3.8518075134925100
1981-10-01	3.9545589645380200
1982-01-01	3.9964203118703700
1982-04-01	3.8633746580546600
1982-07-01	3.8394424767666000
1982-10-01	3.7995690710567800
1983-01-01	3.6498461730477000
1983-04-01	3.2885914538324400
1983-07-01	2.5086546567223700
1983-10-01	1.8053741289612500
1984-01-01	1.5914255847492300
1984-04-01	1.9103776223316400
1984-07-01	2.5089265565793800
1984-10-01	2.9355536955421000
1985-01-01	2.9627095434341800
1985-04-01	2.8074081951222000
1985-07-01	2.8171987628735900
1985-10-01	2.8907033989659400
1986-01-01	3.0128927986332800
1986-04-01	3.0315175821073100
1986-07-01	2.8429329969261700
1986-10-01	2.8342485317589000
1987-01-01	2.9521822535409600
1987-04-01	2.9559275467839200
1987-07-01	2.6558830079684900
1987-10-01	1.9982094688936500
1988-01-01	1.2313305713530500
1988-04-01	0.5369990221730000
1988-07-01	0.1773955750787730
1988-10-01	0.0610056556469189
1989-01-01	0.0403217753455029
1989-04-01	0.2828721316585820
1989-07-01	0.6093522633202880
1989-10-01	0.9999384799173490
1990-01-01	1.3859361670553400
1990-04-01	1.4859273775864000
1990-07-01	1.3668112435122600
1990-10-01	1.1139059329981500
1991-01-01	0.7778864552255240
1991-04-01	0.4228209993412360
1991-07-01	0.2085094467168320
1991-10-01	0.0620442562150657
1992-01-01	0.0444469514452539
1992-04-01	0.4206766737790760
1992-07-01	0.7996104234511650
1992-10-01	0.8851516940179300
1993-01-01	0.6940003160706920
1993-04-01	0.3265407872161290
1993-07-01	0.0864004536907822
1993-10-01	0.1920129590475670
1994-01-01	0.5280200820814360
1994-04-01	0.7712586271596100
1994-07-01	0.8723521868891050
1994-10-01	0.9716024260446240
1995-01-01	1.2396066935386600
1995-04-01	1.6875282026110600
1995-07-01	2.1320317819580800
1995-10-01	2.4039236235087500
1996-01-01	2.3976483236538800
1996-04-01	2.1293760186966200
1996-07-01	1.8469809662525600
1996-10-01	1.6728013779338000
1997-01-01	1.4887909474154900
1997-04-01	1.5168091438716100
1997-07-01	1.7825485150876800
1997-10-01	2.0786801490910000
1998-01-01	2.3575668309539200
1998-04-01	2.4042254838199600
1998-07-01	2.1068573099992100
1998-10-01	1.6293131271063400
1999-01-01	1.2234185229672700
1999-04-01	0.9820613906245380
1999-07-01	0.9828979928707320
1999-10-01	1.2156569601347400
2000-01-01	1.4402002893251500
2000-04-01	1.4507324047022400
2000-07-01	1.1833620467772800
2000-10-01	0.7674353606069850
2001-01-01	0.4731526734153140
2001-04-01	0.4245298359320040
2001-07-01	0.4817626347126510
2001-10-01	0.6419938411023150
2002-01-01	0.7600037395637230
2002-04-01	0.6985376650464250
2002-07-01	0.5510016305985420
2002-10-01	0.1308647142699120
2003-01-01	-0.3487540666550850
2003-04-01	-0.4393874964231740
2003-07-01	-0.1801933781747500
2003-10-01	0.2781610285405170
2004-01-01	0.8346325459317620
2004-04-01	1.2900802266991000
2004-07-01	1.5341160372784600
2004-10-01	1.5534043667769200
2005-01-01	1.3316097098862700
2005-04-01	1.0900568380585700
2005-07-01	0.9788477378237610
2005-10-01	1.0555966381977500
2006-01-01	1.2928564946108700
2006-04-01	1.4968863067656000
2006-07-01	1.5846475617803100
2006-10-01	1.6989802799023600
2007-01-01	1.8607892661066500
2007-04-01	1.7773685627911400
2007-07-01	1.7002456690802800
2007-10-01	1.8820261700777400
2008-01-01	2.0061052856200200
2008-04-01	2.0378824832736000
2008-07-01	1.9938003041444500
2008-10-01	1.7700571890577300
2009-01-01	1.5205749587018000
2009-04-01	1.3694035496747700
2009-07-01	1.1955935650711600
2009-10-01	0.9264217565048170
2010-01-01	0.7380952990375690
2010-04-01	0.7183889215775020
2010-07-01	0.7615988695364380
2010-10-01	0.8381630600941800
2011-01-01	0.8787621709727870
2011-04-01	0.8458852357573140