Quarter	Percent Change
1970-04-01	0.18312550462312200
1970-07-01	0.36558221317346000
1970-10-01	0.54637620402138300
1971-01-01	0.72454242828274500
1971-04-01	0.91513831314260100
1971-07-01	1.10087089585418000
1971-10-01	1.28080363949232000
1972-01-01	1.45409878386418000
1972-04-01	1.58212034327450000
1972-07-01	1.70402444016686000
1972-10-01	1.81956207291645000
1973-01-01	1.92856067743659000
1973-04-01	3.38743494279567000
1973-07-01	4.72281717746063000
1973-10-01	5.89096677308588000
1974-01-01	6.86754257013273000
1974-04-01	5.75467034853678000
1974-07-01	4.80652243061222000
1974-10-01	3.98020698838640000
1975-01-01	3.24515857137937000
1975-04-01	3.65302347898014000
1975-07-01	4.01617774801823000
1975-10-01	4.33401276918219000
1976-01-01	4.60723847717544000
1976-04-01	4.90773224258633000
1976-07-01	5.15800228882229000
1976-10-01	5.36132600870902000
1977-01-01	5.52161791514157000
1977-04-01	4.90327404887745000
1977-07-01	4.36007320993769000
1977-10-01	3.87701514277042000
1978-01-01	3.44264502109189000
1978-04-01	4.00329832733427000
1978-07-01	4.49843959801329000
1978-10-01	4.92607925760038000
1979-01-01	5.28692903321005000
1979-04-01	4.79839999974800000
1979-07-01	4.36586015631565000
1979-10-01	3.97929404183372000
1980-01-01	3.63087841127176000
1980-04-01	4.09751107476585000
1980-07-01	4.50669504252485000
1980-10-01	4.85822116904551000
1981-01-01	5.15371285956005000
1981-04-01	5.84461355909139000
1981-07-01	6.41327290852571000
1981-10-01	6.86443021756476000
1982-01-01	7.20735629535234000
1982-04-01	6.36696462791126000
1982-07-01	5.65129453954347000
1982-10-01	5.03234852932779000
1983-01-01	4.48975053781272000
1983-04-01	4.38868371197391000
1983-07-01	4.29216429584486000
1983-10-01	4.19988697600121000
1984-01-01	4.11157293322260000
1984-04-01	4.63509749893824000
1984-07-01	5.08528804246470000
1984-10-01	5.46299405254157000
1985-01-01	5.77149107697156000
1985-04-01	4.62990084436027000
1985-07-01	3.63494151358389000
1985-10-01	2.74507477661231000
1986-01-01	1.92972909756262000
1986-04-01	2.27790655274312000
1986-07-01	2.60331627964436000
1986-10-01	2.90386237637035000
1987-01-01	3.17817162857695000
1987-04-01	3.35898013050118000
1987-07-01	3.51946691864216000
1987-10-01	3.66029164569539000
1988-01-01	3.78232753654493000
1988-04-01	4.13064375243643000
1988-07-01	4.43366731285145000
1988-10-01	4.69249512502546000
1989-01-01	4.90918818676768000
1989-04-01	5.41527879974106000
1989-07-01	5.83510587811062000
1989-10-01	6.17292409934881000
1990-01-01	6.43521380652992000
1990-04-01	5.04007703743020000
1990-07-01	3.84045973343165000
1990-10-01	2.77606385246317000
1991-01-01	1.80363441086913000
1991-04-01	2.04222773811473000
1991-07-01	2.26648882807794000
1991-10-01	2.47551491029082000
1992-01-01	2.66870791417961000
1992-04-01	2.85507520324328000
1992-07-01	3.02446063612433000
1992-10-01	3.17701046096991000
1993-01-01	3.31309128467576000
1993-04-01	3.03390180755089000
1993-07-01	2.77671523753094000
1993-10-01	2.53838033182873000
1994-01-01	2.31626815778646000
1994-04-01	2.76657154808550000
1994-07-01	3.18129847157953000
1994-10-01	3.55733460460872000
1995-01-01	3.89297096970853000
1995-04-01	3.02005061115605000
1995-07-01	2.22578391824706000
1995-10-01	1.48695411585210000
1996-01-01	0.78491546602296000
1996-04-01	1.44103147226002000
1996-07-01	2.07338234230379000
1996-10-01	2.67082746057292000
1997-01-01	3.22427373767209000
1997-04-01	2.48619113216691000
1997-07-01	1.80397055889403000
1997-10-01	1.16111580326862000
1998-01-01	0.54391200689906100
1998-04-01	0.73384848758220500
1998-07-01	0.91997609904413500
1998-10-01	1.10131797668158000
1999-01-01	1.27698262242465000
1999-04-01	1.06483726878354000
1999-07-01	0.85963937894217700
1999-10-01	0.65998730672360300
2000-01-01	0.46459578739864000
2000-04-01	0.44606181868857100
2000-07-01	0.38261672566425500
2000-10-01	0.20750958073822000
2001-01-01	0.12949061291113800
2001-04-01	0.17071995337739400
2001-07-01	0.42953218723740800
2001-10-01	0.90795329597092000
2002-01-01	1.26476653625595000
2002-04-01	1.42108509842378000
2002-07-01	1.43108910654284000
2002-10-01	1.24895545629513000
2003-01-01	0.93999075205445600
2003-04-01	0.67567119700738700
2003-07-01	0.48066553777584800
2003-10-01	0.32651376550636500
2004-01-01	0.36384718838678500
2004-04-01	0.57156259609922400
2004-07-01	0.71175576397980700
2004-10-01	0.81088149887179300
2005-01-01	0.97360359470229200
2005-04-01	0.98715528344635600
2005-07-01	0.85296226355579900
2005-10-01	0.81796290361426900
2006-01-01	0.71886031905365100
2006-04-01	0.55174042275302800
2006-07-01	0.59307100036957400
2006-10-01	0.74314765673240900
2007-01-01	0.89831779648978500
2007-04-01	1.08780607600270000
2007-07-01	1.25638904161932000
2007-10-01	1.36352006767737000
2008-01-01	1.35710977442984000
2008-04-01	1.29415634107494000
2008-07-01	1.28166261852051000
2008-10-01	1.32638979332144000
2009-01-01	1.31541845969695000
2009-04-01	0.92348576868978700
2009-07-01	0.37302793671037200
2009-10-01	0.00148855117363398
2010-01-01	-0.23848528869412300
2010-04-01	-0.20631574330780700
2010-07-01	-0.18801550681805800
2010-10-01	-0.44320768161332300
2011-01-01	-0.68707573553548500
2011-04-01	-0.74686434631707500