Quarter Index 2010=1 1981-01-01 0.530612244897959 1981-04-01 0.543171114599686 1981-07-01 0.555159126587698 1981-10-01 0.559155130583702 1982-01-01 0.568288854003140 1982-04-01 0.575995433138290 1982-07-01 0.578564292850007 1982-10-01 0.577993435136292 1983-01-01 0.579706008277437 1983-04-01 0.591408591408591 1983-07-01 0.597973455116312 1983-10-01 0.599400599400600 1984-01-01 0.610532324818039 1984-04-01 0.618238903953190 1984-07-01 0.622520336806051 1984-10-01 0.621093192521764 1985-01-01 0.625945483088340 1985-04-01 0.629941487084344 1985-07-01 0.628514342800057 1985-10-01 0.630512344798059 1986-01-01 0.630797773654917 1986-04-01 0.626516340802055 1986-07-01 0.628799771656914 1986-10-01 0.632510346796061 1987-01-01 0.634508348794063 1987-04-01 0.644212929927216 1987-07-01 0.656200941915228 1987-10-01 0.667332667332667 1988-01-01 0.679320679320679 1988-04-01 0.691308691308691 1988-07-01 0.700442414728129 1988-10-01 0.705580134151563 1989-01-01 0.713286713286713 1989-04-01 0.712715855572998 1989-07-01 0.706721849578993 1989-10-01 0.697302697302697 1990-01-01 0.696731839588983 1990-04-01 0.696731839588983 1990-07-01 0.697588126159555 1990-10-01 0.703011274439846 1991-01-01 0.696731839588983 1991-04-01 0.682174967889254 1991-07-01 0.672184957899244 1991-10-01 0.663336663336663 1992-01-01 0.666190951905238 1992-04-01 0.672184957899243 1992-07-01 0.678749821606965 1992-10-01 0.684458398744113 1993-01-01 0.698444412730127 1993-04-01 0.693592122163551 1993-07-01 0.695590124161553 1993-10-01 0.707863565006422 1994-01-01 0.725845582988440 1994-04-01 0.741258741258741 1994-07-01 0.762665905523048 1994-10-01 0.785500214071643 1995-01-01 0.823462252033681 1995-04-01 0.828029113743400 1995-07-01 0.838589981447124 1995-10-01 0.832881404309976 1996-01-01 0.825745682888540 1996-04-01 0.820607963465106 1996-07-01 0.823462252033681 1996-10-01 0.819751676894534 1997-01-01 0.820322534608249 1997-04-01 0.824603967461110 1997-07-01 0.821749678892536 1997-10-01 0.818039103753390 1998-01-01 0.810332524618239 1998-04-01 0.807192807192807 1998-07-01 0.809761666904524 1998-10-01 0.804623947481090 1999-01-01 0.799771656914514 1999-04-01 0.811188811188811 1999-07-01 0.832025117739403 1999-10-01 0.839160839160839 2000-01-01 0.855430284001713 2000-04-01 0.863422291993721 2000-07-01 0.865134865134865 2000-10-01 0.875981161695447 2001-01-01 0.872556015413158 2001-04-01 0.876837448266020 2001-07-01 0.859997145711431 2001-10-01 0.841444270015699 2002-01-01 0.846867418295990 2002-04-01 0.853432282003711 2002-07-01 0.860282574568289 2002-10-01 0.865134865134865 2003-01-01 0.876266590552305 2003-04-01 0.847438276009705 2003-07-01 0.849436278007707 2003-10-01 0.844298558584273 2004-01-01 0.873412301983731 2004-04-01 0.910803482232054 2004-07-01 0.921078921078921 2004-10-01 0.905665762808620 2005-01-01 0.920222634508349 2005-04-01 0.926216640502355 2005-07-01 0.924789496218068 2005-10-01 0.935921221635507 2006-01-01 0.942486085343228 2006-04-01 0.965034965034965 2006-07-01 0.975595832738690 2006-10-01 0.968174682460397 2007-01-01 0.991579848722706 2007-04-01 1.004424147281290 2007-07-01 0.978164692450407 2007-10-01 0.967603824746682 2008-01-01 0.997859283573569 2008-04-01 1.048094762380480 2008-07-01 1.073783359497650 2008-10-01 1.016697588126160 2009-01-01 0.978450121307264 2009-04-01 0.973597830740688 2009-07-01 0.974168688454403 2009-10-01 0.979020979020979 2010-01-01 0.992436135293278 2010-04-01 0.997288425859854 2010-07-01 0.993292421863850 2010-10-01 1.016983016983020 2011-01-01 1.046953046953050 2011-04-01 1.060653632082200 2011-07-01 1.058941058941060 2011-10-01 1.057513914656770 2012-01-01 1.059797345511630 2012-04-01 1.060368203225350 2012-07-01 1.052947052947050 2012-10-01 1.056086770372480 2013-01-01 1.068360211217350 2013-04-01 1.061795347509630 2013-07-01 1.064078778364490