Quarter Growth rate same period previous year 1971-01-01 2.222222222222200 1971-04-01 2.325581395348830 1971-07-01 -2.325581395348830 1971-10-01 -8.888888888888890 1972-01-01 -2.173913043478240 1972-04-01 4.545454545454530 1972-07-01 23.809523809523800 1972-10-01 34.146341463414600 1973-01-01 31.111111111111100 1973-04-01 34.782608695652200 1973-07-01 15.384615384615400 1973-10-01 1.818181818181820 1974-01-01 5.084745762711880 1974-04-01 1.612903225806440 1974-07-01 3.333333333333340 1974-10-01 8.928571428571440 1975-01-01 -1.612903225806460 1975-04-01 -6.349206349206350 1975-07-01 1.612903225806440 1975-10-01 3.278688524590160 1976-01-01 22.950819672131100 1976-04-01 38.983050847457600 1976-07-01 31.746031746031800 1976-10-01 26.984126984127000 1977-01-01 6.666666666666660 1977-04-01 6.097560975609750 1977-07-01 12.048192771084300 1977-10-01 37.500000000000000 1978-01-01 91.250000000000000 1978-04-01 137.931034482759000 1978-07-01 137.634408602151000 1978-10-01 123.636363636364000 1979-01-01 141.830065359477000 1979-04-01 114.009661835749000 1979-07-01 84.162895927601800 1979-10-01 59.756097560975600 1980-01-01 6.756756756756750 1980-04-01 -15.575620767494400 1980-07-01 -12.530712530712500 1980-10-01 -1.526717557251920 1981-01-01 6.582278481012660 1981-04-01 -1.604278074866320 1981-07-01 -13.483146067415700 1981-10-01 -30.232558139534900 1982-01-01 -44.893111638954900 1982-04-01 -54.891304347826100 1982-07-01 -43.831168831168800 1982-10-01 -23.333333333333300 1983-01-01 7.758620689655160 1983-04-01 107.228915662651000 1983-07-01 199.421965317919000 1983-10-01 213.526570048309000 1984-01-01 330.400000000000000 1984-04-01 171.802325581395000 1984-07-01 122.972972972973000 1984-10-01 88.597842835131000 1985-01-01 14.312267657992600 1985-04-01 53.475935828877000 1985-07-01 70.649350649350600 1985-10-01 158.333333333333000 1986-01-01 238.211382113821000 1986-04-01 202.439024390244000 1986-07-01 256.164383561644000 1986-10-01 292.156862745098000 1987-01-01 473.605769230769000 1987-04-01 884.516129032258000 1987-07-01 1122.122507122510000 1987-10-01 238.161290322581000 1988-01-01 115.660883412958000 1988-04-01 23.759595581351800 1988-07-01 -32.107514599093200 1988-10-01 52.372889440045800 1989-01-01 26.414177726822300 1989-04-01 72.685325264750400 1989-07-01 102.856799491819000 1989-10-01 88.446308672311500 1990-01-01 116.341808343837000 1990-04-01 93.327456779644800 1990-07-01 54.529829490050400 1990-10-01 52.421470037229400 1991-01-01 41.028440786167000 1991-04-01 69.219727052787000 1991-07-01 98.265903466501400 1991-10-01 122.907421995376000 1992-01-01 158.298706494607000 1992-04-01 80.850826483495100 1992-07-01 21.864953145416300 1992-10-01 18.838558931765400 1993-01-01 -1.719548143808330 1993-04-01 -7.855217530519890 1993-07-01 23.383369634200300 1993-10-01 33.848012831219500 1994-01-01 55.716565324804600 1994-04-01 37.971832445105700 1994-07-01 42.068069812578000 1994-10-01 16.270248387656700 1995-01-01 -28.983888856077500 1995-04-01 -13.146284132833200 1995-07-01 -3.480467076842800 1995-10-01 -1.880776359540240 1996-01-01 59.700917507142900 1996-04-01 61.212024839353000 1996-07-01 29.147981699896200 1996-10-01 33.568859933622400 1997-01-01 26.055444246935400 1997-04-01 24.323369444109200 1997-07-01 53.494626249765000 1997-10-01 50.347166267438600 1998-01-01 27.061820762958700 1998-04-01 17.761075385165200 1998-07-01 -22.614186862301700 1998-10-01 -22.004573413852700 1999-01-01 -12.717001310246200 1999-04-01 17.792189918584700 1999-07-01 39.046685110327800 1999-10-01 54.355407283654600 2000-01-01 79.583405071264300 2000-04-01 17.689293248107400 2000-07-01 26.926679420552700 2000-10-01 -0.722743400187724 2001-01-01 -18.056710064257100 2001-04-01 -3.310293031247850 2001-07-01 -8.101042451210260 2001-10-01 -1.820633963839890 2002-01-01 12.362443318043400 2002-04-01 13.783991857266900 2002-07-01 -1.573899619138780 2002-10-01 2.761557031572000 2003-01-01 -12.556218845971900 2003-04-01 -7.795756506708340 2003-07-01 22.295361068955300 2003-10-01 38.170660949449000 2004-01-01 62.553609770905500 2004-04-01 54.740402330429700 2004-07-01 37.623120590853600 2004-10-01 43.088553654906200 2005-01-01 35.393143906279700 2005-04-01 25.254874494077800 2005-07-01 42.951936994728700 2005-10-01 38.830025503715300 2006-01-01 42.496013718064300 2006-04-01 52.254806061247200 2006-07-01 40.237303289439000 2006-10-01 47.031682964437800 2007-01-01 45.278029957738400 2007-04-01 56.411082270226200 2007-07-01 48.514212064368800 2007-10-01 25.750800703833700 2008-01-01 5.582168436759510 2008-04-01 1.694340538026330 2008-07-01 -12.661621031005400 2008-10-01 -32.351415886220000 2009-01-01 -32.112199362182100 2009-04-01 -24.906869528251900 2009-07-01 2.961212440919890 2009-10-01 50.113403045783600 2010-01-01 63.522212376348400 2010-04-01 39.159617269304200 2010-07-01 18.052759269307000 2010-10-01 17.644037014148800 2011-01-01 16.099490748327400 2011-04-01 11.177057769993900 2011-07-01 7.131012563716400 2011-10-01 -1.278424248752570 2012-01-01 1.708335119350480 2012-04-01 7.224969913284500 2012-07-01 16.468937531007200 2012-10-01 17.522208579172400 2013-01-01 17.281461223673600 2013-04-01 7.189864592682880 2013-07-01 1.222006603088710 2013-10-01 -2.165914033769620 2014-01-01 -9.153638550593890 2014-04-01 0.682942921000956 2014-07-01 9.465811736142800 2014-10-01 5.641797900204110 2015-01-01 6.405672511372740 2015-04-01 7.943099615527780 2015-07-01 -2.147451380389160 2015-10-01 0.799422614141716 2016-01-01 0.933672585748725 2016-04-01 1.157065638302260 2016-07-01 7.441257402096050 2016-10-01 5.788683393266410 2017-01-01 9.305649139636460 2017-04-01 8.259133447948750 2017-07-01 7.886848295334150 2017-10-01 4.755182330115540 2018-01-01 2.979854945570220 2018-04-01 -4.791812957982640 2018-07-01 -3.317365000849950