Quarter Index 2010=1 1980-01-01 0.237643971214916 1980-04-01 0.274146510308534 1980-07-01 0.326214869048766 1980-10-01 0.309939043141174 1981-01-01 0.266437919897818 1981-04-01 0.310088063445224 1981-07-01 0.368060136709015 1981-10-01 0.332418098105917 1982-01-01 0.299190132410969 1982-04-01 0.347902465614286 1982-07-01 0.388580830249310 1982-10-01 0.379624452024796 1983-01-01 0.324132602016247 1983-04-01 0.371855277734465 1983-07-01 0.443294163711367 1983-10-01 0.415951475839821 1984-01-01 0.361443947027612 1984-04-01 0.396675905339517 1984-07-01 0.461436787153922 1984-10-01 0.430145646606754 1985-01-01 0.384189407329554 1985-04-01 0.428954576296568 1985-07-01 0.474153777191316 1985-10-01 0.446032993551970 1986-01-01 0.429409218993570 1986-04-01 0.456706923976463 1986-07-01 0.529111501039100 1986-10-01 0.483264320356908 1987-01-01 0.438812088701620 1987-04-01 0.491018091092849 1987-07-01 0.543120634714700 1987-10-01 0.523335610987547 1988-01-01 0.457327228906067 1988-04-01 0.507362810376533 1988-07-01 0.557722594945987 1988-10-01 0.534607452964556 1989-01-01 0.484432556700320 1989-04-01 0.526533729719629 1989-07-01 0.580881659710652 1989-10-01 0.603712294816029 1990-01-01 0.542339608067394 1990-04-01 0.598495543620592 1990-07-01 0.648779576919203 1990-10-01 0.658931328556512 1991-01-01 0.584297179393873 1991-04-01 0.639873221522246 1991-07-01 0.692401642430642 1991-10-01 0.699854517999196 1992-01-01 0.619441907193526 1992-04-01 0.701035641276914 1992-07-01 0.759471389476608 1992-10-01 0.780968075460046 1993-01-01 0.690742746867430 1993-04-01 0.743445936453842 1993-07-01 0.807218153668594 1993-10-01 0.816395940337772 1994-01-01 0.704071927294720 1994-04-01 0.749511061843916 1994-07-01 0.810819393461212 1994-10-01 0.822035597149749 1995-01-01 0.696671275428350 1995-04-01 0.756219763401559 1995-07-01 0.843477250901707 1995-10-01 0.817707476662324 1996-01-01 0.730880169284525 1996-04-01 0.781215360368706 1996-07-01 0.857012463962268 1996-10-01 0.843448735515567 1997-01-01 0.758765144972434 1997-04-01 0.794404582425852 1997-07-01 0.863789021745978 1997-10-01 0.852269081669616 1998-01-01 0.745543322466700 1998-04-01 0.813777617695672 1998-07-01 0.848425041820742 1998-10-01 0.852671079570431 1999-01-01 0.752246284083940 1999-04-01 0.802644000657916 1999-07-01 0.825315233148940 1999-10-01 0.837537741133202 2000-01-01 0.720563110308968 2000-04-01 0.799919396663604 2000-07-01 0.854575885037009 2000-10-01 0.875540629263938 2001-01-01 0.754397419632975 2001-04-01 0.825756774254355 2001-07-01 0.853855343228753 2001-10-01 0.865357810645135 2002-01-01 0.781299169752772 2002-04-01 0.834342449543152 2002-07-01 0.874435728790185 2002-10-01 0.889878016356374 2003-01-01 0.798909107778484 2003-04-01 0.875074703722443 2003-07-01 0.887505522720974 2003-10-01 0.890010520731162 2004-01-01 0.808924008603067 2004-04-01 0.878075508876914 2004-07-01 0.894015856635809 2004-10-01 0.922493139059816 2005-01-01 0.843096731761239 2005-04-01 0.890595274757556 2005-07-01 0.917907618945476 2005-10-01 0.939821121701939 2006-01-01 0.861221368768455 2006-04-01 0.922587024583421 2006-07-01 0.935223513931449 2006-10-01 0.965945699892479 2007-01-01 0.898086605411198 2007-04-01 0.948832982112584 2007-07-01 0.978677422567636 2007-10-01 1.012579922795690 2008-01-01 0.964394216393452 2008-04-01 1.000534668436920 2008-07-01 1.024602381409790 2008-10-01 1.062903654755660 2009-01-01 0.995020963553365 2009-04-01 1.062030408665500 2009-07-01 1.042129634459840 2009-10-01 1.062485261531790 2010-01-01 0.938242989987911 2010-04-01 1.017340577811890 2010-07-01 1.003933388958880 2010-10-01 1.040483043241320 2011-01-01 0.908834809315406 2011-04-01 0.987561304141077