Month Growth Rate Same Period Previous Year 1971-01-01 7.407407407407400 1971-02-01 3.703703703703690 1971-03-01 3.703703703703690 1971-04-01 7.407407407407400 1971-05-01 7.407407407407400 1971-06-01 7.407407407407400 1971-07-01 3.571428571428580 1971-08-01 3.571428571428580 1971-09-01 3.571428571428580 1971-10-01 3.448275862068950 1971-11-01 7.142857142857140 1971-12-01 7.142857142857140 1972-01-01 3.448275862068950 1972-02-01 7.142857142857140 1972-03-01 7.142857142857140 1972-04-01 3.448275862068950 1972-05-01 6.896551724137940 1972-06-01 6.896551724137940 1972-07-01 6.896551724137940 1972-08-01 10.344827586206900 1972-09-01 10.344827586206900 1972-10-01 6.666666666666680 1972-11-01 6.666666666666680 1972-12-01 6.666666666666680 1973-01-01 10.000000000000000 1973-02-01 13.333333333333400 1973-03-01 16.666666666666700 1973-04-01 20.000000000000000 1973-05-01 16.129032258064500 1973-06-01 16.129032258064500 1973-07-01 16.129032258064500 1973-08-01 12.500000000000000 1973-09-01 15.625000000000000 1973-10-01 18.750000000000000 1973-11-01 18.750000000000000 1973-12-01 18.750000000000000 1974-01-01 15.151515151515100 1974-02-01 11.764705882352900 1974-03-01 11.428571428571400 1974-04-01 8.333333333333310 1974-05-01 8.333333333333310 1974-06-01 13.888888888888800 1974-07-01 16.666666666666700 1974-08-01 19.444444444444400 1974-09-01 18.918918918918900 1974-10-01 15.789473684210600 1974-11-01 18.421052631579000 1974-12-01 18.421052631579000 1975-01-01 21.052631578947400 1975-02-01 23.684210526315800 1975-03-01 17.948717948718000 1975-04-01 20.512820512820500 1975-05-01 20.512820512820500 1975-06-01 14.634146341463400 1975-07-01 14.285714285714300 1975-08-01 13.953488372093000 1975-09-01 11.363636363636400 1975-10-01 11.363636363636400 1975-11-01 8.888888888888900 1975-12-01 8.888888888888900 1976-01-01 6.521739130434780 1976-02-01 4.255319148936180 1976-03-01 6.521739130434780 1976-04-01 4.255319148936180 1976-05-01 6.382978723404250 1976-06-01 6.382978723404250 1976-07-01 6.249999999999990 1976-08-01 6.122448979591820 1976-09-01 6.122448979591820 1976-10-01 6.122448979591820 1976-11-01 6.122448979591820 1976-12-01 8.163265306122450 1977-01-01 10.204081632653100 1977-02-01 12.244897959183700 1977-03-01 12.244897959183700 1977-04-01 12.244897959183700 1977-05-01 10.000000000000000 1977-06-01 12.000000000000000 1977-07-01 11.764705882353000 1977-08-01 9.615384615384620 1977-09-01 9.615384615384620 1977-10-01 11.538461538461500 1977-11-01 11.538461538461500 1977-12-01 11.320754716981100 1978-01-01 11.111111111111100 1978-02-01 9.090909090909080 1978-03-01 10.909090909090900 1978-04-01 10.909090909090900 1978-05-01 10.909090909090900 1978-06-01 8.928571428571450 1978-07-01 14.035087719298200 1978-08-01 14.035087719298200 1978-09-01 15.789473684210500 1978-10-01 15.517241379310400 1978-11-01 15.517241379310400 1978-12-01 13.559322033898300 1979-01-01 15.000000000000000 1979-02-01 16.666666666666700 1979-03-01 14.754098360655700 1979-04-01 16.393442622950800 1979-05-01 16.393442622950800 1979-06-01 18.032786885245900 1979-07-01 15.384615384615400 1979-08-01 16.923076923076900 1979-09-01 16.666666666666600 1979-10-01 14.925373134328400 1979-11-01 14.925373134328400 1979-12-01 14.925373134328400 1980-01-01 15.942028985507200 1980-02-01 14.285714285714300 1980-03-01 14.285714285714300 1980-04-01 15.492957746478900 1980-05-01 15.492957746478900 1980-06-01 16.666666666666700 1980-07-01 14.666666666666700 1980-08-01 15.789473684210600 1980-09-01 20.779220779220800 1980-10-01 25.974025974026000 1980-11-01 28.571428571428600 1980-12-01 29.870129870129900 1981-01-01 27.500000000000000 1981-02-01 28.750000000000000 1981-03-01 28.750000000000000 1981-04-01 25.609756097561000 1981-05-01 25.609756097561000 1981-06-01 25.000000000000000 1981-07-01 22.093023255814000 1981-08-01 22.727272727272700 1981-09-01 18.279569892473100 1981-10-01 14.432989690721700 1981-11-01 14.141414141414100 1981-12-01 13.000000000000000 1982-01-01 10.784313725490200 1982-02-01 10.679611650485400 1982-03-01 12.621359223301000 1982-04-01 13.592233009708700 1982-05-01 13.592233009708700 1982-06-01 11.428571428571400 1982-07-01 12.380952380952400 1982-08-01 10.185185185185200 1982-09-01 10.000000000000000 1982-10-01 10.810810810810800 1982-11-01 9.734513274336280 1982-12-01 8.849557522123900 1983-01-01 11.504424778761100 1983-02-01 13.157894736842100 1983-03-01 12.931034482758600 1983-04-01 11.965811965812000 1983-05-01 11.965811965812000 1983-06-01 11.965811965812000 1983-07-01 11.016949152542400 1983-08-01 11.764705882353000 1983-09-01 11.570247933884300 1983-10-01 11.382113821138200 1983-11-01 10.483870967741900 1983-12-01 12.195121951219500 1984-01-01 10.317460317460300 1984-02-01 9.302325581395350 1984-03-01 9.160305343511450 1984-04-01 11.450381679389300 1984-05-01 12.213740458015200 1984-06-01 13.740458015267200 1984-07-01 11.450381679389300 1984-08-01 9.774436090225540 1984-09-01 9.629629629629640 1984-10-01 10.218978102189800 1984-11-01 12.408759124087600 1984-12-01 11.594202898550700 1985-01-01 13.669064748201400 1985-02-01 12.056737588652500 1985-03-01 9.790209790209780 1985-04-01 9.589041095890420 1985-05-01 9.523809523809530 1985-06-01 10.067114093959700 1985-07-01 11.643835616438400 1985-08-01 13.013698630137000 1985-09-01 12.837837837837800 1985-10-01 13.245033112582800 1985-11-01 12.987012987013000 1985-12-01 16.883116883116900 1986-01-01 18.987341772151900 1986-02-01 18.354430379746800 1986-03-01 19.108280254777100 1986-04-01 19.375000000000000 1986-05-01 18.633540372670800 1986-06-01 17.073170731707400 1986-07-01 20.858895705521500 1986-08-01 21.818181818181800 1986-09-01 22.155688622754500 1986-10-01 22.807017543859600 1986-11-01 22.988505747126500 1986-12-01 20.555555555555600 1987-01-01 19.148936170212800 1987-02-01 21.390374331550800 1987-03-01 24.064171122994600 1987-04-01 24.607329842931900 1987-05-01 26.178010471204200 1987-06-01 25.520833333333400 1987-07-01 22.842639593908600 1987-08-01 21.890547263681600 1987-09-01 23.039215686274500 1987-10-01 22.857142857142900 1987-11-01 21.028037383177600 1987-12-01 20.737327188940100 1988-01-01 17.857142857142900 1988-02-01 17.180616740088100 1988-03-01 16.810344827586200 1988-04-01 17.647058823529400 1988-05-01 16.597510373444000 1988-06-01 15.767634854771700 1988-07-01 16.942148760330600 1988-08-01 16.326530612244900 1988-09-01 14.741035856573700 1988-10-01 13.565891472868200 1988-11-01 13.127413127413100 1988-12-01 12.213740458015200 1989-01-01 13.257575757575700 1989-02-01 12.030075187969900 1989-03-01 11.070110701107000 1989-04-01 7.500000000000000 1989-05-01 9.252669039145920 1989-06-01 11.111111111111100 1989-07-01 9.893992932862200 1989-08-01 10.175438596491200 1989-09-01 10.416666666666700 1989-10-01 10.580204778157000 1989-11-01 12.286689419795200 1989-12-01 14.625850340136100 1990-01-01 15.050167224080300 1990-02-01 15.436241610738200 1990-03-01 14.950166112956800 1990-04-01 16.943521594684400 1990-05-01 15.635179153094400 1990-06-01 15.161290322580700 1990-07-01 16.077170418006400 1990-08-01 17.515923566879000 1990-09-01 17.295597484276700 1990-10-01 15.740740740740800 1990-11-01 16.413373860182400 1990-12-01 15.727002967359100 1991-01-01 15.406976744186100 1991-02-01 15.697674418604700 1991-03-01 15.895953757225400 1991-04-01 16.477272727272700 1991-05-01 17.746478873239400 1991-06-01 17.086834733893500 1991-07-01 17.174515235457100 1991-08-01 17.886178861788600 1991-09-01 19.839142091152800 1991-10-01 25.600000000000000 1991-11-01 26.892950391644900 1991-12-01 27.948717948717900 1992-01-01 26.196473551637300 1992-02-01 27.135678391959800 1992-03-01 28.927680798005000 1992-04-01 28.536585365853700 1992-05-01 27.511961722488100 1992-06-01 28.947368421052700 1992-07-01 30.496453900709200 1992-08-01 28.735632183908100 1992-09-01 27.516778523489900 1992-10-01 21.443736730361000 1992-11-01 17.283950617284000 1992-12-01 14.228456913827700 1993-01-01 14.770459081836300 1993-02-01 14.031620553359700 1993-03-01 11.025145067698300 1993-04-01 8.538899430740040 1993-05-01 7.317073170731710 1993-06-01 6.307977736549160 1993-07-01 4.347826086956540 1993-08-01 3.214285714285710 1993-09-01 2.280701754385940 1993-10-01 2.797202797202770 1993-11-01 4.035087719298210 1993-12-01 5.087719298245580 1994-01-01 5.913043478260850 1994-02-01 5.892547660311930 1994-03-01 6.968641114982580 1994-04-01 8.741258741258730 1994-05-01 10.314685314685300 1994-06-01 11.867364746945900 1994-07-01 14.756944444444400 1994-08-01 19.723183391003500 1994-09-01 21.955403087478500 1994-10-01 21.768707482993200 1994-11-01 18.718381112984900 1994-12-01 17.529215358931600 1995-01-01 17.241379310344800 1995-02-01 17.512274959083500 1995-03-01 17.589576547231300 1995-04-01 17.524115755627000 1995-05-01 15.689381933439000 1995-06-01 12.480499219968800 1995-07-01 8.169440242057490 1995-08-01 2.167630057803480 1995-09-01 -0.984528832630079 1995-10-01 -1.536312849162010 1995-11-01 0.994318181818162 1995-12-01 3.693181818181800 1996-01-01 4.061624649859930 1996-02-01 3.064066852367690 1996-03-01 3.324099722991680 1996-04-01 1.915184678522580 1996-05-01 1.369863013698640 1996-06-01 2.357836338418860 1996-07-01 4.895104895104910 1996-08-01 7.920792079207920 1996-09-01 10.227272727272700 1996-10-01 12.482269503546100 1996-11-01 11.533052039381200 1996-12-01 9.863013698630150 1997-01-01 8.882907133243600 1997-02-01 9.999999999999990 1997-03-01 9.785522788203760 1997-04-01 10.469798657718100 1997-05-01 11.756756756756800 1997-06-01 12.872628726287300 1997-07-01 11.866666666666700 1997-08-01 9.960681520314560 1997-09-01 8.376288659793820 1997-10-01 6.809583858764190 1997-11-01 6.935687263556120 1997-12-01 6.483790523690770 1998-01-01 6.304079110012360 1998-02-01 5.896805896805920 1998-03-01 6.105006105006110 1998-04-01 6.318347509113010 1998-05-01 6.650544135429260 1998-06-01 6.242496998799530 1998-07-01 5.721096543504170 1998-08-01 5.482717520858160 1998-09-01 5.945303210463740 1998-10-01 6.375442739079090 1998-11-01 6.485849056603770 1998-12-01 6.440281030444960 1999-01-01 6.976744186046520 1999-02-01 7.076566125290010 1999-03-01 5.638665132336000 1999-04-01 4.914285714285700 1999-05-01 4.535147392290250 1999-06-01 4.180790960451970 1999-07-01 3.720405862457710 1999-08-01 4.067796610169460 1999-09-01 4.264870931537600 1999-10-01 3.551609322974460 1999-11-01 4.872646733111840 1999-12-01 5.060506050605080 2000-01-01 5.217391304347840 2000-02-01 5.633802816901420 2000-03-01 7.407407407407430 2000-04-01 8.387799564270170 2000-05-01 8.785249457700640 2000-06-01 9.436008676789610 2000-07-01 9.673913043478280 2000-08-01 9.771986970684040 2000-09-01 9.149623250807320 2000-10-01 8.467309753483410 2000-11-01 6.546990496304140 2000-12-01 5.445026178010480 2001-01-01 4.958677685950390 2001-02-01 5.333333333333340 2001-03-01 4.563894523326550 2001-04-01 4.020100502512550 2001-05-01 3.888334995014960 2001-06-01 3.171456888007900 2001-07-01 3.666997026759150 2001-08-01 3.956478733926810 2001-09-01 4.635108481262340 2001-10-01 6.324110671936770 2001-11-01 8.523290386521290 2001-12-01 11.420059582919500 2002-01-01 12.303149606299200 2002-02-01 12.113254724204800 2002-03-01 13.786443122214900 2002-04-01 15.482596268348000 2002-05-01 15.562556289379100 2002-06-01 17.779318848726200 2002-07-01 18.814724558925100 2002-08-01 20.299843135238000 2002-09-01 21.477191850674400 2002-10-01 21.820992399216000 2002-11-01 20.538503514242100 2002-12-01 18.035213552577100 2003-01-01 17.388472810159500 2003-02-01 15.279122297515300 2003-03-01 13.586698337292200 2003-04-01 11.470313957102900 2003-05-01 11.277383523603800 2003-06-01 9.000000000000000 2003-07-01 7.503736920777280 2003-08-01 5.730238025271810 2003-09-01 3.574517151916990 2003-10-01 2.338435374149660 2003-11-01 2.350457424349050 2003-12-01 1.613129471174070 2004-01-01 1.317614424410550 2004-02-01 2.421273617914640 2004-03-01 2.132998745294850 2004-04-01 2.147239263803700 2004-05-01 1.719118258699580 2004-06-01 1.445649152071170 2004-07-01 0.889877641824248 2004-08-01 0.639244024458053 2004-09-01 0.848872808238235 2004-10-01 1.038637307852090 2004-11-01 1.210121012101210 2004-12-01 1.297625621203740 2005-01-01 1.245722108145090 2005-02-01 1.106859797758940 2005-03-01 0.859950859950853 2005-04-01 0.914550914550919 2005-05-01 0.681477443096639 2005-06-01 0.726226363387240 2005-07-01 2.081036383682450 2005-08-01 2.402651201325580 2005-09-01 2.690768593900930 2005-10-01 2.179276315789480 2005-11-01 1.942934782608710 2005-12-01 3.447805941673480 2006-01-01 3.569497025419170 2006-02-01 3.797810514934440 2006-03-01 4.384896467722300 2006-04-01 4.734208034627360 2006-05-01 5.320157032624880 2006-06-01 6.393687933614440 2006-07-01 6.115836371000400 2006-08-01 6.526429341963340 2006-09-01 7.242676699811880 2006-10-01 8.343393695506370 2006-11-01 8.023457283753150 2006-12-01 6.942431827163750 2007-01-01 7.715404699738910 2007-02-01 7.343750000000010 2007-03-01 7.519771813820820 2007-04-01 8.420508846700230 2007-05-01 9.035989717223650 2007-06-01 9.142053445850940 2007-07-01 9.783715012722670 2007-08-01 10.772151898734200 2007-09-01 11.652675103370500 2007-10-01 12.133217778878300 2007-11-01 12.831585441085800 2007-12-01 13.118994826311900 2008-01-01 13.198400193915900 2008-02-01 13.508280464694700 2008-03-01 14.537607302362300 2008-04-01 14.615393259689600 2008-05-01 15.503815622365700 2008-06-01 16.851160899011500 2008-07-01 17.429816524794600 2008-08-01 17.202346685985200 2008-09-01 16.680041415846000 2008-10-01 15.772018307532400 2008-11-01 15.428783642984600 2008-12-01 15.526845134261600 2009-01-01 15.849056603773600 2009-02-01 15.819209039548000 2009-03-01 14.842300556586300 2009-04-01 13.736263736263700 2009-05-01 12.230215827338100 2009-06-01 10.070671378091900 2009-07-01 7.652173913043470 2009-08-01 6.529209621993110 2009-09-01 5.084745762711870 2009-10-01 5.042016806722690 2009-11-01 4.173622704507520 2009-12-01 3.488372093023240 2010-01-01 2.117263843648210 2010-02-01 1.626016260162600 2010-03-01 0.969305331179322 2010-04-01 0.805152979066023 2010-05-01 0.641025641025642 2010-06-01 0.321027287319422 2010-07-01 1.130856219709210 2010-08-01 1.612903225806450 2010-09-01 1.451612903225810 2010-10-01 0.960000000000001 2010-11-01 1.282051282051280 2010-12-01 1.605136436597110 2011-01-01 3.189792663476880 2011-02-01 3.520000000000000 2011-03-01 4.800000000000000 2011-04-01 4.792332268370590 2011-05-01 6.050955414012730 2011-06-01 7.040000000000010 2011-07-01 7.667731629392980 2011-08-01 7.142857142857150 2011-09-01 8.585055643879160 2011-10-01 10.301109350237700 2011-11-01 10.759493670886100 2011-12-01 11.216429699842000 2012-01-01 10.355486862442000 2012-02-01 9.891808346213280 2012-03-01 8.702290076335880 2012-04-01 8.536585365853680 2012-05-01 6.906906906906930 2012-06-01 6.128550074738400 2012-07-01 5.341246290801180 2012-08-01 5.037037037037040 2012-09-01 5.710102489019060 2012-10-01 6.321839080459780 2012-11-01 7.000000000000000 2012-12-01 6.534090909090900 2013-01-01 5.882352941176460 2013-02-01 5.766526019690580 2013-03-01 5.477528089887630 2013-04-01 6.039325842696620 2013-05-01 6.039325842696620 2013-06-01 6.338028169014090 2013-07-01 6.619718309859160 2013-08-01 7.334273624823690 2013-09-01 6.232686980609410 2013-10-01 4.459459459459460 2013-11-01 4.005340453938570 2013-12-01 3.866666666666670 2014-01-01 4.894179894179900 2014-02-01 5.984042553191490 2014-03-01 7.723035952063920 2014-04-01 8.609271523178820 2014-05-01 9.536423841059610 2014-06-01 9.668874172185420 2014-07-01 9.247027741083230 2014-08-01 9.461235216819970 2014-09-01 8.604954367666220 2014-10-01 7.761966364812410 2014-11-01 7.445442875481390 2014-12-01 7.060333761232360 2015-01-01 6.052963430012600 2015-02-01 6.022584692597230 2015-03-01 5.315203955500620 2015-04-01 4.512195121951220 2015-05-01 4.111245465538080 2015-06-01 4.106280193236730 2015-07-01 4.111245465538080 2015-08-01 4.201680672268910 2015-09-01 4.321728691476610 2015-10-01 5.042016806722690 2015-11-01 5.376344086021500 2015-12-01 6.354916067146280 2016-01-01 7.372175980975040 2016-02-01 9.467455621301780 2016-03-01 10.563380281690100 2016-04-01 12.252042007001200 2016-05-01 11.962833914053400 2016-06-01 11.948955916473300 2016-07-01 12.659698025551700 2016-08-01 12.672811059907800 2016-09-01 12.773302646720400 2016-10-01 12.800000000000000 2016-11-01 12.471655328798200 2016-12-01 12.739571589628000 2017-01-01 12.513842746400900 2017-02-01 10.486486486486500 2017-03-01 9.023354564755840 2017-04-01 6.652806652806650 2017-05-01 6.950207468879650 2017-06-01 6.735751295336790 2017-07-01 6.391752577319590 2017-08-01 5.214723926380380 2017-09-01 5.000000000000020 2017-10-01 4.863221884498460 2017-11-01 4.737903225806460 2017-12-01 4.299999999999990 2018-01-01 3.838582677165350 2018-02-01 3.326810176125250 2018-03-01 2.823758519961040 2018-04-01 3.313840155945420 2018-05-01 2.715809893307490