Quarter Index 2010=1 1981-01-01 0.241466444115797 1981-04-01 0.284428606912128 1981-07-01 0.275804857667361 1981-10-01 0.333417155750864 1982-01-01 0.284381001344515 1982-04-01 0.342542335783466 1982-07-01 0.322661760210572 1982-10-01 0.401830068258600 1983-01-01 0.335442692473102 1983-04-01 0.407109922656141 1983-07-01 0.377575635658211 1983-10-01 0.456406760648095 1984-01-01 0.374067874983511 1984-04-01 0.447145316632911 1984-07-01 0.413881220144987 1984-10-01 0.499338239807543 1985-01-01 0.415863700987657 1985-04-01 0.485362578027730 1985-07-01 0.440017730900819 1985-10-01 0.532925038872996 1986-01-01 0.433573522364325 1986-04-01 0.512165764492324 1986-07-01 0.468382408888666 1986-10-01 0.560836057002040 1987-01-01 0.451362450815631 1987-04-01 0.532351847140860 1987-07-01 0.494432913920764 1987-10-01 0.600243209377262 1988-01-01 0.478569138282518 1988-04-01 0.558227705375718 1988-07-01 0.518268786548195 1988-10-01 0.622777605732588 1989-01-01 0.505786053695828 1989-04-01 0.591174300120065 1989-07-01 0.549136703614915 1989-10-01 0.676018087108359 1990-01-01 0.541826517130234 1990-04-01 0.638712841347145 1990-07-01 0.599121901306297 1990-10-01 0.710129796320962 1991-01-01 0.589447543974498 1991-04-01 0.691565433777771 1991-07-01 0.631441248623806 1991-10-01 0.777009315885190 1992-01-01 0.632791174071105 1992-04-01 0.737118883983621 1992-07-01 0.680654119439712 1992-10-01 0.816519531927910 1993-01-01 0.645776027529173 1993-04-01 0.739927473515931 1993-07-01 0.667382740501735 1993-10-01 0.789086286174949 1994-01-01 0.630695959484108 1994-04-01 0.747554749203722 1994-07-01 0.665643854664410 1994-10-01 0.785155950227112 1995-01-01 0.658865340116118 1995-04-01 0.741934484891844 1995-07-01 0.668559085252711 1995-10-01 0.810761767240763 1996-01-01 0.671460723437204 1996-04-01 0.774154347938769 1996-07-01 0.708881258526151 1996-10-01 0.849001789309846 1997-01-01 0.700881976484438 1997-04-01 0.790531519821673 1997-07-01 0.716495838626703 1997-10-01 0.848152962054655 1998-01-01 0.683048173818556 1998-04-01 0.783346547633696 1998-07-01 0.714511873983977 1998-10-01 0.868901730933666 1999-01-01 0.712008646169083 1999-04-01 0.813853060647985 1999-07-01 0.747535186984485 1999-10-01 0.877470556743901 2000-01-01 0.725140716188041 2000-04-01 0.799195323463469 2000-07-01 0.726477832712418 2000-10-01 0.865142538105644 2001-01-01 0.730667586663762 2001-04-01 0.793545788522845 2001-07-01 0.749362391447951 2001-10-01 0.898642661479807 2002-01-01 0.782540812099784 2002-04-01 0.830995964919384 2002-07-01 0.769619309946576 2002-10-01 0.920861330133912 2003-01-01 0.777958860655986 2003-04-01 0.863731952665909 2003-07-01 0.809408521104105 2003-10-01 0.976157438152522 2004-01-01 0.807290300210092 2004-04-01 0.869657054209786 2004-07-01 0.817307690684865 2004-10-01 0.978043971494253 2005-01-01 0.836589217038379 2005-04-01 0.906763322393513 2005-07-01 0.837475971449091 2005-10-01 1.013567537693800 2006-01-01 0.866493555576975 2006-04-01 0.935587775760486 2006-07-01 0.843401527956557 2006-10-01 1.007400824789690 2007-01-01 0.874012665916442 2007-04-01 0.956659166989503 2007-07-01 0.867046718266296 2007-10-01 1.053942854716150 2008-01-01 0.916397940039892 2008-04-01 0.966278835178450 2008-07-01 0.905920722779332 2008-10-01 1.078948370929790 2009-01-01 0.922688638461181 2009-04-01 1.016383047585270 2009-07-01 0.916261696340196 2009-10-01 1.131773964300150 2010-01-01 0.943500344918306 2010-04-01 1.018470695456130 2010-07-01 0.901240769135314 2010-10-01 1.136788190490250 2011-01-01 0.913607962715358