Quarterly Percent Change
1970-04-01 1.31139698687185000
1970-07-01 2.58884395216026000
1970-10-01 3.78527092716289000
1971-01-01 4.86295207108820000
1971-04-01 3.59633045930818000
1971-07-01 2.46652067487925000
1971-10-01 1.42637531029477000
1972-01-01 0.43933616315838500
1972-04-01 0.34009311029305700
1972-07-01 0.24194892563361800
1972-10-01 0.14460797862931000
1973-01-01 0.04778151444017110
1973-04-01 2.76966052263359000
1973-07-01 5.34356377429618000
1973-10-01 7.58670940610137000
1974-01-01 9.38862019266101000
1974-04-01 6.81514460361704000
1974-07-01 4.72543153482462000
1974-10-01 2.93199664036718000
1975-01-01 1.31327815604818000
1975-04-01 1.82999349445847000
1975-07-01 2.32125374000980000
1975-10-01 2.78085019722928000
1976-01-01 3.20400794369735000
1976-04-01 2.86127437039553000
1976-07-01 2.54518605976446000
1976-10-01 2.25138698286053000
1977-01-01 1.97626660685428000
1977-04-01 1.88645923314479000
1977-07-01 1.80097646067562000
1977-10-01 1.71945508176319000
1978-01-01 1.64156921795463000
1978-04-01 1.30905117602475000
1978-07-01 0.99008479832139100
1978-10-01 0.68128782084788100
1979-01-01 0.37961127474256300
1979-04-01 1.49993260665193000
1979-07-01 2.58294726766799000
1979-10-01 3.59526367436672000
1980-01-01 16.17560785105820000
1980-04-01 0.70607068668622400
1980-07-01 1.40224056379469000
1980-10-01 2.07427452687177000
1981-01-01 2.70949695618416000
1981-04-01 2.29998386884039000
1981-07-01 1.91783789528259000
1981-10-01 1.55753092656356000
1982-01-01 1.21439823236212000
1982-04-01 1.10896796349464000
1982-07-01 1.00694170434573000
1982-10-01 0.90793628316342800
1983-01-01 0.81160028528389200
1983-04-01 0.29263920661320500
1983-07-01 -0.21914664215253800
1983-10-01 -0.73168205596356500
1984-01-01 -1.25290343882413000
1984-04-01 -0.86191618515355500
1984-07-01 -0.45898816880259000
1984-10-01 -0.04879052543856880
1985-01-01 0.36370099886406400
1985-04-01 0.33489275042831600
1985-07-01 0.30637646692615200
1985-10-01 0.27812585254810700
1986-01-01 0.25011540090795100
1986-04-01 0.42156262589488000
1986-07-01 0.59114182743835700
1986-10-01 0.75800980608530700
1987-01-01 0.92136768469955900
1987-04-01 0.56352585430254700
1987-07-01 0.21289598818683600
1987-10-01 -0.13429016080443000
1988-01-01 -0.48167087542220000
1988-04-01 -0.29029077793372800
1988-07-01 -0.09686057349210890
1988-10-01 0.09750922630668230
1989-01-01 0.29168850692386100
1989-04-01 0.57870749843267700
1989-07-01 0.86158875850943300
1989-10-01 1.13799493629315000
1990-01-01 1.40576353570109000
1990-04-01 -0.00762950120735800
1990-07-01 0.13470708187079500
1990-10-01 0.46436756243305200
1991-01-01 0.53895957358660600
1991-04-01 0.20564617592965300
1991-07-01 -0.24845031017872800
1991-10-01 -0.65924818658341100
1992-01-01 -0.78841291639943300
1992-04-01 -0.51608196192980300
1992-07-01 -0.34096734127161700
1992-10-01 -0.59237412112066500
1993-01-01 -0.89608121876275700
1993-04-01 -0.51522239734974200
1993-07-01 0.05169583528850570
1993-10-01 -0.07140720406857100
1994-01-01 -0.14802644068988000
1994-04-01 -0.13712037713423900
1994-07-01 -0.12054978371072600
1994-10-01 0.36868363707504300
1995-01-01 0.44435770913583900
1995-04-01 -0.22829495997590500
1995-07-01 -0.86152009355743500
1995-10-01 -1.24917088016160000
1996-01-01 -1.29736727143518000
1996-04-01 -1.08509015082498000
1996-07-01 -1.17172537345065000
1996-10-01 -1.12352521562840000
1997-01-01 -0.24702875433054900
1997-04-01 0.39348169781077400
1997-07-01 0.30811606514432500
1997-10-01 0.34518374012421400
1998-01-01 -0.05736208054662340
1998-04-01 -0.89901683410169800
1998-07-01 -1.11644857447843000
1998-10-01 -1.01034978700652000
1999-01-01 -1.10956585297269000
1999-04-01 -1.18255562401125000
1999-07-01 -1.07062253204999000
1999-10-01 -1.02750203756320000
2000-01-01 -1.16926880814287000
2000-04-01 -1.18070858899836000
2000-07-01 -1.09610990150095000
2000-10-01 -1.45386565593534000
2001-01-01 -1.82222145262563000
2001-04-01 -1.44690583650522000
2001-07-01 -1.08013388634603000
2001-10-01 -1.19605790777699000
2002-01-01 -1.27208071127237000
2002-04-01 -1.40667675311594000
2002-07-01 -1.58100092849986000
2002-10-01 -1.73690000816984000
2003-01-01 -1.97464437284920000
2003-04-01 -1.79039376453302000
2003-07-01 -1.09170785436022000
2003-10-01 -0.34558304850955400
2004-01-01 0.07527720202244850
2004-04-01 -0.00302204626436403
2004-07-01 -0.33349220799247100
2004-10-01 -0.54316905065754900
2005-01-01 -0.66465968631825800
2005-04-01 -0.87117853635186000
2005-07-01 -0.89093017339554400
2005-10-01 -0.44519369511372000
2006-01-01 0.05896701463113110
2006-04-01 0.04967061168997840
2006-07-01 -0.30486802213561700
2006-10-01 -0.41411048205518000
2007-01-01 -0.07879313221374140
2007-04-01 0.24972505526453700
2007-07-01 0.30496744414310900
2007-10-01 0.37300965815175700
2008-01-01 0.52719786725174600
2008-04-01 0.76359561660606800
2008-07-01 0.84103822178796900
2008-10-01 0.23287627566153700
2009-01-01 -0.50873937113057600
2009-04-01 -0.23726023793829300
2009-07-01 0.73762865835280900
2009-10-01 1.68853967550712000
2010-01-01 2.25105780254028000
2010-04-01 1.70152048106668000
2010-07-01 0.59877393242082200
2010-10-01 -0.06841708611356330
2011-01-01 -0.35691716802403900
2011-04-01 -0.37615058686424900
2011-07-01 -0.16060251505461400