Quarterly Index 2010=1
1981-01-01 0.296209250822585
1981-04-01 0.338862499134333
1981-07-01 0.335520121603443
1981-10-01 0.423462616779593
1982-01-01 0.358171302910011
1982-04-01 0.409223132771665
1982-07-01 0.398869125626885
1982-10-01 0.506547696602584
1983-01-01 0.417363565075790
1983-04-01 0.478358599275841
1983-07-01 0.451361999600690
1983-10-01 0.552473223284889
1984-01-01 0.457681947611179
1984-04-01 0.514941390502866
1984-07-01 0.498302060668079
1984-10-01 0.611160293196450
1985-01-01 0.512840530281287
1985-04-01 0.572023720931621
1985-07-01 0.533503279747628
1985-10-01 0.651612350023398
1986-01-01 0.532212223872495
1986-04-01 0.599893098915694
1986-07-01 0.557134944309558
1986-10-01 0.675336974588681
1987-01-01 0.557312853408049
1987-04-01 0.615107952450677
1987-07-01 0.579233350127116
1987-10-01 0.699349699801405
1988-01-01 0.569941089358237
1988-04-01 0.631022691567940
1988-07-01 0.599662830897103
1988-10-01 0.715466058612603
1989-01-01 0.591854424199308
1989-04-01 0.663248827055124
1989-07-01 0.631622245984512
1989-10-01 0.768544742945286
1990-01-01 0.628316694224597
1990-04-01 0.713144942632189
1990-07-01 0.683832788152133
1990-10-01 0.816161297444675
1991-01-01 0.691724193972663
1991-04-01 0.776336534629385
1991-07-01 0.716390626987899
1991-10-01 0.888591328605940
1992-01-01 0.734992079987033
1992-04-01 0.803477277595122
1992-07-01 0.752445527454804
1992-10-01 0.918327091963383
1993-01-01 0.744950480787296
1993-04-01 0.805334945882097
1993-07-01 0.742635470435136
1993-10-01 0.878269290876468
1994-01-01 0.706305952982311
1994-04-01 0.786857500221973
1994-07-01 0.703868503744263
1994-10-01 0.850726724363317
1995-01-01 0.727912943924101
1995-04-01 0.773063516985280
1995-07-01 0.706017016260163
1995-10-01 0.867815853267202
1996-01-01 0.726158824020172
1996-04-01 0.797328098426169
1996-07-01 0.747387412127562
1996-10-01 0.909160219952510
1997-01-01 0.758299537327232
1997-04-01 0.814076912088712
1997-07-01 0.745315433919023
1997-10-01 0.896087997207922
1998-01-01 0.734610192326570
1998-04-01 0.794794852008923
1998-07-01 0.737323675529118
1998-10-01 0.922200243173009
1999-01-01 0.758810514966477
1999-04-01 0.836754774487620
1999-07-01 0.767353468324849
1999-10-01 0.927497686566516
2000-01-01 0.752795813655206
2000-04-01 0.796706178008751
2000-07-01 0.720300594749688
2000-10-01 0.908325988281355
2001-01-01 0.747324775084226
2001-04-01 0.792668181527598
2001-07-01 0.748856629731999
2001-10-01 0.938874466182917
2002-01-01 0.798921858878570
2002-04-01 0.838186171473569
2002-07-01 0.764977917267519
2002-10-01 0.958331532286017
2003-01-01 0.798316061504693
2003-04-01 0.894323230492293
2003-07-01 0.816799625388790
2003-10-01 0.991373262508772
2004-01-01 0.811245518847747
2004-04-01 0.874068958895099
2004-07-01 0.809757758811375
2004-10-01 0.983008207509935
2005-01-01 0.855927856694974
2005-04-01 0.901673156514180
2005-07-01 0.819201135408608
2005-10-01 1.010474569125290
2006-01-01 0.868425113931794
2006-04-01 0.926675320441057
2006-07-01 0.819250259517677
2006-10-01 1.004380313063330
2007-01-01 0.870418537663599
2007-04-01 0.940936086031285
2007-07-01 0.843464455471571
2007-10-01 1.026817163768140
2008-01-01 0.888275030076484
2008-04-01 0.957193877417565
2008-07-01 0.876027288562353
2008-10-01 1.083779819821330
2009-01-01 0.924649157286828
2009-04-01 1.025664920130720
2009-07-01 0.923574004704923
2009-10-01 1.156811021043800
2010-01-01 0.942823068208081
2010-04-01 1.017977135925480
2010-07-01 0.887213814931879
2010-10-01 1.151985980934560
2011-01-01 0.924267766267112