Quarter Index 2010=1 1981-01-01 0.160999912366173 1981-04-01 0.175322515712337 1981-07-01 0.177168303945093 1981-10-01 0.209895510081575 1982-01-01 0.186655591523747 1982-04-01 0.204818620553183 1982-07-01 0.198917197505234 1982-10-01 0.231993055614405 1983-01-01 0.204425859427591 1983-04-01 0.220955817351397 1983-07-01 0.231222077588470 1983-10-01 0.265578560791540 1984-01-01 0.228119301712692 1984-04-01 0.243831964442280 1984-07-01 0.234996121111510 1984-10-01 0.268823386561885 1985-01-01 0.250228440175568 1985-04-01 0.270276303509723 1985-07-01 0.267066634439304 1985-10-01 0.317075837303174 1986-01-01 0.291715495697567 1986-04-01 0.304925231585702 1986-07-01 0.298209490518455 1986-10-01 0.341165921646927 1987-01-01 0.308522231877663 1987-04-01 0.319483071796070 1987-07-01 0.313671047852048 1987-10-01 0.361389794431378 1988-01-01 0.322933387516430 1988-04-01 0.349289794653091 1988-07-01 0.341180026909432 1988-10-01 0.379691372537616 1989-01-01 0.346310410456061 1989-04-01 0.360182053819433 1989-07-01 0.367071290712067 1989-10-01 0.401772895106448 1990-01-01 0.382453432707330 1990-04-01 0.418328953614210 1990-07-01 0.405690300251583 1990-10-01 0.451214335303759 1991-01-01 0.412348421319150 1991-04-01 0.447844869741011 1991-07-01 0.457307311487314 1991-10-01 0.515873839533028 1992-01-01 0.465191067128692 1992-04-01 0.504176128400652 1992-07-01 0.493802909356014 1992-10-01 0.527127995858391 1993-01-01 0.495516194430600 1993-04-01 0.525462191000584 1993-07-01 0.533054655969510 1993-10-01 0.563146803706128 1994-01-01 0.510211174916968 1994-04-01 0.543860729167946 1994-07-01 0.532800755356370 1994-10-01 0.595378672930953 1995-01-01 0.520468674161651 1995-04-01 0.531971725592523 1995-07-01 0.550663692722604 1995-10-01 0.598681392797460 1996-01-01 0.541950891867315 1996-04-01 0.533817788487321 1996-07-01 0.550538992453237 1996-10-01 0.624154160097188 1997-01-01 0.569585783136033 1997-04-01 0.603358803401446 1997-07-01 0.613337753800765 1997-10-01 0.663888117872682 1998-01-01 0.554844112791176 1998-04-01 0.584038938317344 1998-07-01 0.562832054395513 1998-10-01 0.651101198163597 1999-01-01 0.569622427372514 1999-04-01 0.639468070568914 1999-07-01 0.608695966723656 1999-10-01 0.668471405004571 2000-01-01 0.608493095797917 2000-04-01 0.630035084138588 2000-07-01 0.603176894437282 2000-10-01 0.666801539848597 2001-01-01 0.609277377593355 2001-04-01 0.628290284705361 2001-07-01 0.626862267213152 2001-10-01 0.688785618120723 2002-01-01 0.613247642950988 2002-04-01 0.644898144572732 2002-07-01 0.641121961363738 2002-10-01 0.724787257355186 2003-01-01 0.670176046372201 2003-04-01 0.675842349515057 2003-07-01 0.657612628629496 2003-10-01 0.769992679272348 2004-01-01 0.656812166930037 2004-04-01 0.706743998090778 2004-07-01 0.702985208207686 2004-10-01 0.797217776967742 2005-01-01 0.724520234040500 2005-04-01 0.771949805288257 2005-07-01 0.685454633249242 2005-10-01 0.801175787590432 2006-01-01 0.732423140133600 2006-04-01 0.760335000333096 2006-07-01 0.709315348959186 2006-10-01 0.823719182945359 2007-01-01 0.737833952960946 2007-04-01 0.822643921488990 2007-07-01 0.762631670095944 2007-10-01 0.884220097675635 2008-01-01 0.777099585288637 2008-04-01 0.840420607041915 2008-07-01 0.838715891226294 2008-10-01 0.981902752548113 2009-01-01 0.859008781220513 2009-04-01 0.942668086087153 2009-07-01 0.897287424293632 2009-10-01 1.072081280876770 2010-01-01 0.944847548936500 2010-04-01 1.039076569503100 2010-07-01 0.954505234554933 2010-10-01 1.061570647005460 2011-01-01 0.918865364107382