Quarterly Index 2010=1
1975-01-01 0.283708517445074
1975-04-01 0.357803782731460
1975-07-01 0.343376802574683
1975-10-01 0.295452342392840
1976-01-01 0.350998194197103
1976-04-01 0.413672146579932
1976-07-01 0.380651917918951
1976-10-01 0.322431236334193
1977-01-01 0.377868965372047
1977-04-01 0.441941426634857
1977-07-01 0.400548365255797
1977-10-01 0.352117657888540
1978-01-01 0.390470470591824
1978-04-01 0.441049976221482
1978-07-01 0.407410594305971
1978-10-01 0.363771649338675
1979-01-01 0.418748634257433
1979-04-01 0.477756008911779
1979-07-01 0.430940688639053
1979-10-01 0.376754707113673
1980-01-01 0.442262473718438
1980-04-01 0.537330191546516
1980-07-01 0.472770431458540
1980-10-01 0.440146163064587
1981-01-01 0.513768307897330
1981-04-01 0.592667774334194
1981-07-01 0.533252626331049
1981-10-01 0.472850489360747
1982-01-01 0.567622076796900
1982-04-01 0.634705141982848
1982-07-01 0.572032821765407
1982-10-01 0.512624318240498
1983-01-01 0.596742725723264
1983-04-01 0.665618535813805
1983-07-01 0.604823375103902
1983-10-01 0.553755321037445
1984-01-01 0.633013978212706
1984-04-01 0.725612947714194
1984-07-01 0.650590496680248
1984-10-01 0.576944995485689
1985-01-01 0.680785432984269
1985-04-01 0.759608462496056
1985-07-01 0.679535546768556
1985-10-01 0.602740831356526
1986-01-01 0.729594718128862
1986-04-01 0.793529553558304
1986-07-01 0.685082374711787
1986-10-01 0.615670649429438
1987-01-01 0.744112243914104
1987-04-01 0.815685391236671
1987-07-01 0.738515343031120
1987-10-01 0.644610403121602
1988-01-01 0.771062622116958
1988-04-01 0.863784014738648
1988-07-01 0.786799157704715
1988-10-01 0.704844612510287
1989-01-01 0.823958450493050
1989-04-01 0.935869266872876
1989-07-01 0.817537574412947
1989-10-01 0.740311366523568
1990-01-01 0.864826428798190
1990-04-01 0.946516979767422
1990-07-01 0.937652761473844
1990-10-01 0.841136316807941
1991-01-01 0.921800658867521
1991-04-01 1.000566218210040
1991-07-01 0.969513101958538
1991-10-01 0.859887929463548
1992-01-01 0.915827694937712
1992-04-01 0.970258800806640
1992-07-01 0.922657264131540
1992-10-01 0.813044742174180
1993-01-01 0.882488046549164
1993-04-01 0.921070676751789
1993-07-01 0.861869367682561
1993-10-01 0.761076406921686
1994-01-01 0.820268096647388
1994-04-01 0.877187212321550
1994-07-01 0.838415088210996
1994-10-01 0.770729410127755
1995-01-01 0.845426625352634
1995-04-01 0.904398411036443
1995-07-01 0.886841159465648
1995-10-01 0.794386391127530
1996-01-01 0.878117470639749
1996-04-01 0.911693882833254
1996-07-01 0.878332894723982
1996-10-01 0.764976241547498
1997-01-01 0.897273389771754
1997-04-01 0.894562591984528
1997-07-01 0.885974078827010
1997-10-01 0.751933691729619
1998-01-01 0.882559170543530
1998-04-01 0.899710520103535
1998-07-01 0.895406033226550
1998-10-01 0.788399868453545
1999-01-01 0.870212477358049
1999-04-01 0.901712036247203
1999-07-01 0.910008944398082
1999-10-01 0.796945321348855
2000-01-01 0.867112521115384
2000-04-01 0.912855611918656
2000-07-01 0.893408330638336
2000-10-01 0.789694687742179
2001-01-01 0.888364789021538
2001-04-01 0.934916732017065
2001-07-01 0.918672802427606
2001-10-01 0.826120226677021
2002-01-01 0.897243917708227
2002-04-01 0.925953957245522
2002-07-01 0.919837498243664
2002-10-01 0.821683476301959
2003-01-01 0.884611637027688
2003-04-01 0.939341444490042
2003-07-01 0.919577983022962
2003-10-01 0.821728922378559
2004-01-01 0.883288700552006
2004-04-01 0.913453148395890
2004-07-01 0.911911056403031
2004-10-01 0.804233737705427
2005-01-01 0.880332152725300
2005-04-01 0.924364417714204
2005-07-01 0.943181452657806
2005-10-01 0.836016569797896
2006-01-01 0.884355091726491
2006-04-01 0.927191251470506
2006-07-01 0.924909267316586
2006-10-01 0.833955250972904
2007-01-01 0.883717968290194
2007-04-01 0.911725300341174
2007-07-01 0.909027629694232
2007-10-01 0.826865451094977
2008-01-01 0.921659461658818
2008-04-01 0.966219819090622
2008-07-01 0.958164983559234
2008-10-01 0.914425301027105
2009-01-01 1.042689098349070
2009-04-01 1.089746342253370
2009-07-01 1.061459320974260
2009-10-01 0.953363129146216
2010-01-01 1.008620880136240
2010-04-01 1.042298957721190
2010-07-01 1.035760826375770
2010-10-01 0.913319335766805
2011-01-01 1.001261572402140