Quarter	Percent Change
1970-04-01	0.58868951410220500
1970-07-01	1.17048834880707000
1970-10-01	1.73541984080269000
1971-01-01	2.27442221189860000
1971-04-01	2.03226608084602000
1971-07-01	1.80402702113140000
1971-10-01	1.58762494924422000
1972-01-01	1.38126227840234000
1972-04-01	1.38230691897646000
1972-07-01	1.38305220714464000
1972-10-01	1.38351038097708000
1973-01-01	1.38369218235671000
1973-04-01	1.83536284951554000
1973-07-01	2.26435904593324000
1973-10-01	2.66606453953776000
1974-01-01	3.03694103155240000
1974-04-01	3.70086188310033000
1974-07-01	4.29533018798646000
1974-10-01	4.81505195495836000
1975-01-01	5.25847565143312000
1975-04-01	4.62830897885215000
1975-07-01	4.07236235761135000
1975-10-01	3.57554333652552000
1976-01-01	3.12629427132573000
1976-04-01	2.94460481625757000
1976-07-01	2.77594887410772000
1976-10-01	2.61882258392966000
1977-01-01	2.47193820007577000
1977-04-01	2.68297859134508000
1977-07-01	2.87647460165226000
1977-10-01	3.05227544816295000
1978-01-01	3.21051032251090000
1978-04-01	3.01100515370314000
1978-07-01	2.82626840616424000
1978-10-01	2.65451936459098000
1979-01-01	2.49424253276089000
1979-04-01	2.43442992913474000
1979-07-01	2.37743863081991000
1979-10-01	2.32307380981344000
1980-01-01	2.27115783538944000
1980-04-01	2.09753085155787000
1980-07-01	1.93377831764966000
1980-10-01	1.77872182161383000
1981-01-01	1.63133390736770000
1981-04-01	1.09640199921550000
1981-07-01	0.58128214383931100
1981-10-01	0.07760185243749000
1982-01-01	-0.42239133833810900
1982-04-01	0.64351579577442400
1982-07-01	1.70027307159679000
1982-10-01	2.71498287213404000
1983-01-01	3.65878329890984000
1983-04-01	4.08949282967057000
1983-07-01	4.46667966234487000
1983-10-01	4.79055668359215000
1984-01-01	5.06287554972567000
1984-04-01	3.59601599253398000
1984-07-01	2.29075547719934000
1984-10-01	1.08545441971207000
1985-01-01	-0.06781008619834530
1985-04-01	0.79005748989077500
1985-07-01	1.63505325078600000
1985-10-01	2.44624455882319000
1986-01-01	3.20532960564115000
1986-04-01	2.92220668173445000
1986-07-01	2.66087786553764000
1986-10-01	2.41817283412046000
1987-01-01	2.19144253031283000
1987-04-01	2.14633203323584000
1987-07-01	2.10307689934231000
1987-10-01	2.06156489878594000
1988-01-01	2.02169267307968000
1988-04-01	2.34493889141627000
1988-07-01	2.64619585702130000
1988-10-01	2.92381059872427000
1989-01-01	3.17676119432983000
1989-04-01	3.32632563981058000
1989-07-01	3.45865488156277000
1989-10-01	3.57443907834016000
1990-01-01	3.67450430298469000
1990-04-01	3.15735719043157000
1990-07-01	2.68564890105464000
1990-10-01	2.25014739529734000
1991-01-01	1.84340721054655000
1991-04-01	1.44649707459704000
1991-07-01	1.06751186815418000
1991-10-01	0.70166151946807400
1992-01-01	0.34466819869907100
1992-04-01	-0.28356156559857400
1992-07-01	-0.91319695810627100
1992-10-01	-1.55623748892478000
1993-01-01	-2.22549589549916000
1993-04-01	1.48641212857807000
1993-07-01	1.60057867607913000
1993-10-01	2.03289111059410000
1994-01-01	2.29580884013719000
1994-04-01	1.80791915814258000
1994-07-01	0.92571318704266900
1994-10-01	0.46975884945555700
1995-01-01	0.87322538285105300
1995-04-01	1.63328311447996000
1995-07-01	1.87366587500682000
1995-10-01	1.78269512914167000
1996-01-01	1.59232214584435000
1996-04-01	1.69726880887600000
1996-07-01	2.21978664211631000
1996-10-01	1.96755639662773000
1997-01-01	0.95177370032755500
1997-04-01	0.54918104650814300
1997-07-01	0.70855046639859100
1997-10-01	0.93327992489448500
1998-01-01	1.48874114113103000
1998-04-01	2.00240052206458000
1998-07-01	1.99780754652128000
1998-10-01	1.22129317344099000
1999-01-01	0.51540730991457400
1999-04-01	1.00278394473482000
1999-07-01	1.88405007420916000
1999-10-01	2.88561340188430000
2000-01-01	3.44107240710445000
2000-04-01	2.62165888265123000
2000-07-01	2.11355101964688000
2000-10-01	2.71432507660744000
2001-01-01	2.82172726484197000
2001-04-01	1.60960504800916000
2001-07-01	0.40242717880371200
2001-10-01	0.28003087554400400
2002-01-01	0.46365556919798500
2002-04-01	0.57234464722550600
2002-07-01	0.85324337065815000
2002-10-01	0.23960478281364900
2003-01-01	-0.86183781639851500
2003-04-01	-0.81558671044147000
2003-07-01	-0.49043280157463500
2003-10-01	-0.15739026573154500
2004-01-01	0.85316761369930600
2004-04-01	1.32871624844950000
2004-07-01	0.81840632114154000
2004-10-01	0.36598682304433700
2005-01-01	0.33529218702228700
2005-04-01	0.50617153661010300
2005-07-01	0.39165931839492600
2005-10-01	-0.22878245221248400
2006-01-01	-0.58323387362128800
2006-04-01	-0.25794946504909100
2006-07-01	0.45158746940847300
2006-10-01	1.49821458337961000
2007-01-01	2.23907296696508000
2007-04-01	1.95438932765908000
2007-07-01	1.01374133201941000
2007-10-01	0.00266053500557717
2008-01-01	-0.32961069884758400
2008-04-01	0.37190937843149900
2008-07-01	1.27225741112334000
2008-10-01	1.77651117234155000
2009-01-01	1.55801549066349000
2009-04-01	0.74465511985886700
2009-07-01	0.32335837476308300
2009-10-01	0.34004768019079500
2010-01-01	0.32596569745293600
2010-04-01	0.29844372591288100
2010-07-01	0.35833645554095900
2010-10-01	0.34309038127870600
2011-01-01	0.26130670775392100