Month Growth rate same period previous year 1971-01-01 5.849072086890120 1971-02-01 6.086777606417540 1971-03-01 6.177429433023470 1971-04-01 6.506175514001090 1971-05-01 6.861266108898740 1971-06-01 6.976623350002020 1971-07-01 7.193781558220290 1971-08-01 7.246219394150860 1971-09-01 7.392529284989550 1971-10-01 7.378439015682400 1971-11-01 7.361445426347320 1971-12-01 7.317213949428310 1972-01-01 6.978584190420790 1972-02-01 6.872633160868780 1972-03-01 6.781046528708150 1972-04-01 6.318530307262770 1972-05-01 6.316322313742340 1972-06-01 6.474497346800360 1972-07-01 6.482366968521780 1972-08-01 6.597857418910530 1972-09-01 6.928311410537720 1972-10-01 7.150654136613960 1972-11-01 7.130226896449790 1972-12-01 7.215812500289100 1973-01-01 7.439911695305510 1973-02-01 7.591497020455240 1973-03-01 7.815873085381390 1973-04-01 8.382266430035170 1973-05-01 8.906129844068340 1973-06-01 9.189422186693660 1973-07-01 9.053322321785800 1973-08-01 9.182202802584530 1973-09-01 9.255323792974840 1973-10-01 9.756806793825460 1973-11-01 10.364082033706300 1973-12-01 10.931741555417800 1974-01-01 11.452097345476000 1974-02-01 12.128042957280000 1974-03-01 12.904358232310800 1974-04-01 13.431039389116800 1974-05-01 13.503663574554700 1974-06-01 13.528291598522600 1974-07-01 14.110983679509800 1974-08-01 14.442305131821500 1974-09-01 14.955153488695000 1974-10-01 14.946407803031300 1974-11-01 15.227840223058500 1974-12-01 14.943444470039500 1975-01-01 15.090738695989000 1975-02-01 14.839456142877900 1975-03-01 14.354307554328900 1975-04-01 14.259874797749500 1975-05-01 14.442640082722400 1975-06-01 14.444939913020400 1975-07-01 13.972575326969800 1975-08-01 13.536775655141400 1975-09-01 13.058460937872900 1975-10-01 12.441172124331500 1975-11-01 11.812178995741100 1975-12-01 11.844954418769200 1976-01-01 11.678968179822500 1976-02-01 11.626908263715700 1976-03-01 11.725422929835800 1976-04-01 11.481263287885900 1976-05-01 11.248904815931000 1976-06-01 10.776708211450900 1976-07-01 10.637589506005400 1976-08-01 11.021955708288500 1976-09-01 11.162830657838100 1976-10-01 11.760873924925000 1976-11-01 12.050149934760100 1976-12-01 11.905255176583900 1977-01-01 11.907247720827000 1977-02-01 11.919252197872400 1977-03-01 11.916880569790200 1977-04-01 12.064675846068900 1977-05-01 11.801684253189900 1977-06-01 12.288716284864800 1977-07-01 12.576710844808600 1977-08-01 12.508987517723600 1977-09-01 12.405882855933400 1977-10-01 12.129968528295000 1977-11-01 11.909326838107500 1977-12-01 11.854661249419700 1978-01-01 11.498185717373100 1978-02-01 11.340443144756500 1978-03-01 11.051850296778800 1978-04-01 10.878638101452000 1978-05-01 10.932934649812900 1978-06-01 10.817490697137800 1978-07-01 10.888837070127300 1978-08-01 10.720438298153100 1978-09-01 10.537536168758100 1978-10-01 10.387295091216100 1978-11-01 10.259419246945300 1978-12-01 10.237617530938100 1979-01-01 10.555054007004700 1979-02-01 10.524007746781600 1979-03-01 10.694281302325500 1979-04-01 10.759116585560900 1979-05-01 10.881189350647600 1979-06-01 11.591623848273100 1979-07-01 12.768761807200400 1979-08-01 13.128401317112900 1979-09-01 13.651277608081800 1979-10-01 14.221442200946200 1979-11-01 14.640241460648800 1979-12-01 15.208131422276400 1980-01-01 16.322035434488900 1980-02-01 17.487025569804500 1980-03-01 17.582208235369600 1980-04-01 17.953778207464100 1980-05-01 17.856713365930300 1980-06-01 17.291379638996200 1980-07-01 16.321770041286800 1980-08-01 16.187138260247300 1980-09-01 15.884005749673300 1980-10-01 15.520299492968200 1980-11-01 15.462550757572000 1980-12-01 15.210774030675700 1981-01-01 14.333112493739700 1981-02-01 13.459914153215500 1981-03-01 13.556947405075100 1981-04-01 13.189096721941300 1981-05-01 13.191591030233600 1981-06-01 13.101306535655700 1981-07-01 13.079557288706300 1981-08-01 13.032980229375800 1981-09-01 13.115404925292800 1981-10-01 13.138496107923500 1981-11-01 13.085383756608100 1981-12-01 12.826655993539300 1982-01-01 12.692918174860800 1982-02-01 12.331527068618200 1982-03-01 11.987005972228600 1982-04-01 11.793339814238700 1982-05-01 11.757522115013100 1982-06-01 11.798531548150400 1982-07-01 11.300303372420700 1982-08-01 11.017218982862500 1982-09-01 10.577512707422300 1982-10-01 10.367077346730300 1982-11-01 10.090973486319400 1982-12-01 10.148598015885300 1983-01-01 9.846582916501060 1983-02-01 9.779078258404190 1983-03-01 9.596499318951420 1983-04-01 9.492116633811560 1983-05-01 9.133090800834150 1983-06-01 8.747955861897980 1983-07-01 8.835966809564840 1983-08-01 9.026802978862730 1983-09-01 9.219662623103860 1983-10-01 9.263597810673060 1983-11-01 9.317417039933350 1983-12-01 9.292214680974050 1984-01-01 9.121630230972020 1984-02-01 9.099252590541010 1984-03-01 9.188528688826140 1984-04-01 9.179010384860530 1984-05-01 9.293862945958580 1984-06-01 9.626401356032320 1984-07-01 9.315350492703170 1984-08-01 9.166563635853730 1984-09-01 8.746151112733640 1984-10-01 8.709283009997240 1984-11-01 8.550813247876620 1984-12-01 8.222296755231560 1985-01-01 8.442677975092390 1985-02-01 8.688309717779490 1985-03-01 8.929320133617580 1985-04-01 8.752278073826810 1985-05-01 8.597344337747830 1985-06-01 7.884622500380360 1985-07-01 7.720082416991040 1985-08-01 7.373903707156090 1985-09-01 7.549917971180360 1985-10-01 7.433846635666400 1985-11-01 7.533337167739950 1985-12-01 7.530694123396550 1986-01-01 7.135002072708110 1986-02-01 6.450431760359440 1986-03-01 5.684904110523050 1986-04-01 5.307748608297230 1986-05-01 5.077903453748090 1986-06-01 5.258499390419040 1986-07-01 5.109210211379580 1986-08-01 5.050995015922740 1986-09-01 4.951380728563160 1986-10-01 4.737678599473380 1986-11-01 4.337381944767680 1986-12-01 4.264722783669780 1987-01-01 4.251443701245050 1987-02-01 4.481161222983910 1987-03-01 4.730336397419530 1987-04-01 4.926129084369360 1987-05-01 5.092013379180570 1987-06-01 4.922117579320310 1987-07-01 5.155316942664020 1987-08-01 5.293819745756420 1987-09-01 5.167270470474620 1987-10-01 5.267273831446460 1987-11-01 5.492401593113490 1987-12-01 6.072429004754720 1988-01-01 5.983181702643870 1988-02-01 6.026457855679360 1988-03-01 6.226687058638830 1988-04-01 6.415940878736700 1988-05-01 6.450321128878180 1988-06-01 6.614045321132680 1988-07-01 6.685586924761480 1988-08-01 6.858489303095360 1988-09-01 7.185446580156000 1988-10-01 7.163746904432100 1988-11-01 7.301269186960840 1988-12-01 6.852314911749720 1989-01-01 7.128812840822180 1989-02-01 7.305379149762250 1989-03-01 7.192115633227890 1989-04-01 7.468212420906260 1989-05-01 7.502175743583300 1989-06-01 7.567777730028110 1989-07-01 7.657868829802970 1989-08-01 7.595222544973990 1989-09-01 7.668104591464400 1989-10-01 7.892096256666870 1989-11-01 7.790202688963830 1989-12-01 7.804826030825210 1990-01-01 7.705492789725160 1990-02-01 7.761624380135900 1990-03-01 7.863962774272600 1990-04-01 7.760123622548010 1990-05-01 7.844059268031840 1990-06-01 7.762127276852240 1990-07-01 7.496982269914260 1990-08-01 7.871467456137900 1990-09-01 8.274682027369990 1990-10-01 8.473099593772690 1990-11-01 8.290984380747790 1990-12-01 7.972020225029340 1991-01-01 8.013801811829810 1991-02-01 8.089999273892160 1991-03-01 7.948733070056080 1991-04-01 8.244382157820800 1991-05-01 8.258534878837010 1991-06-01 8.571436706855410 1991-07-01 8.997932196298420 1991-08-01 8.707773792477420 1991-09-01 8.253142409610300 1991-10-01 8.313383846715710 1991-11-01 8.713100712834840 1991-12-01 8.957601245090940 1992-01-01 9.028797370770000 1992-02-01 9.040448835029080 1992-03-01 9.247989349396160 1992-04-01 8.648635520470470 1992-05-01 8.416828412836430 1992-06-01 7.951151888395550 1992-07-01 7.501953131364650 1992-08-01 7.441210005869460 1992-09-01 7.504524735779140 1992-10-01 7.092388327961570 1992-11-01 6.924892898129530 1992-12-01 6.843458671016140 1993-01-01 6.915962539876720 1993-02-01 6.818154093347090 1993-03-01 6.805307928979370 1993-04-01 6.816211743359470 1993-05-01 6.973773125539160 1993-06-01 7.068262425578590 1993-07-01 7.472915703100180 1993-08-01 7.438707162775910 1993-09-01 7.213650177998690 1993-10-01 7.123205946259360 1993-11-01 7.068384192458690 1993-12-01 7.187685797597410 1994-01-01 6.737428085217380 1994-02-01 6.876878759414550 1994-03-01 6.797709050247260 1994-04-01 8.046934375600220 1994-05-01 8.485662626347490 1994-06-01 8.466048175091110 1994-07-01 8.294310601425410 1994-08-01 8.452218676796550 1994-09-01 8.556320536341060 1994-10-01 8.653190836804140 1994-11-01 8.845760573291640 1994-12-01 9.374358074906340 1995-01-01 9.574301308126500 1995-02-01 9.568014486749910 1995-03-01 9.662128282230830 1995-04-01 8.470623011600750 1995-05-01 8.046543850424060 1995-06-01 8.161554427309990 1995-07-01 7.940801408408180 1995-08-01 7.955282798000930 1995-09-01 8.142684629180280 1995-10-01 7.947954864940690 1995-11-01 7.732894071744130 1995-12-01 7.367430453870690 1996-01-01 7.458183977321660 1996-02-01 7.345708231328060 1996-03-01 7.382401566534490 1996-04-01 7.383647393450260 1996-05-01 7.408745270636910 1996-06-01 7.317049168820150 1996-07-01 7.253757653844840 1996-08-01 7.164595181125570 1996-09-01 6.967378812128690 1996-10-01 7.047784644713560 1996-11-01 6.964125956320670 1996-12-01 6.907675151273380 1997-01-01 6.820013012428640 1997-02-01 6.609836197842300 1997-03-01 6.361555510886910 1997-04-01 6.187396903863190 1997-05-01 6.198303191380800 1997-06-01 6.268793990724090 1997-07-01 6.783648104322680 1997-08-01 7.034892075358540 1997-09-01 7.123580780743980 1997-10-01 7.254768701055540 1997-11-01 7.545251526990590 1997-12-01 7.646932950913680 1998-01-01 7.408264096318350 1998-02-01 7.448415452427790 1998-03-01 7.414235499593980 1998-04-01 7.436329679959500 1998-05-01 7.299231904193880 1998-06-01 7.164997489064640 1998-07-01 6.778818467293710 1998-08-01 6.345497892924000 1998-09-01 6.175560633016780 1998-10-01 5.918005177732140 1998-11-01 5.541936665341860 1998-12-01 5.298350800161130 1999-01-01 5.040878095738240 1999-02-01 4.869235610735170 1999-03-01 4.967739429601830 1999-04-01 5.051466648625930 1999-05-01 4.932278854712720 1999-06-01 4.941799109693420 1999-07-01 5.025026913242740 1999-08-01 5.189719276022840 1999-09-01 5.208755544086370 1999-10-01 5.252489882559490 1999-11-01 5.369753782898540 1999-12-01 5.772585714546620 2000-01-01 5.814251118392530 2000-02-01 5.949910240060180 2000-03-01 5.854063719935630 2000-04-01 5.481420582698700 2000-05-01 5.508395507698600 2000-06-01 5.623419601690250 2000-07-01 5.527974989055970 2000-08-01 5.255760095411560 2000-09-01 5.275559792134930 2000-10-01 5.007167662666480 2000-11-01 4.954774957753660 2000-12-01 4.500807352941120 2001-01-01 4.230444659833400 2001-02-01 4.181666431109930 2001-03-01 4.367859281148360 2001-04-01 5.184621131766320 2001-05-01 5.697060949682650 2001-06-01 5.698319708863440 2001-07-01 5.514197740922150 2001-08-01 5.572458641955560 2001-09-01 5.520729914783720 2001-10-01 5.652345482298940 2001-11-01 5.455962105568600 2001-12-01 5.667986280006030 2002-01-01 6.125186839462850 2002-02-01 5.944542628358600 2002-03-01 5.750873862779690 2002-04-01 5.094354161062420 2002-05-01 4.461837938980880 2002-06-01 4.107549705597390 2002-07-01 4.039045631279800 2002-08-01 4.032901851229820 2002-09-01 3.849520223308230 2002-10-01 3.787274662051420 2002-11-01 3.667344004287650 2002-12-01 3.532069907874940 2003-01-01 3.251784446306720 2003-02-01 3.452711229908920 2003-03-01 3.457490463202110 2003-04-01 3.101752701505240 2003-05-01 2.906456145228480 2003-06-01 2.988683199549310 2003-07-01 2.900822131092830 2003-08-01 2.864159798284510 2003-09-01 2.767973946364300 2003-10-01 2.580720103051370 2003-11-01 2.536600050543170 2003-12-01 2.375487723725310 2004-01-01 2.159518561581380 2004-02-01 1.940044236543010 2004-03-01 1.888614872296320 2004-04-01 2.201152781535450 2004-05-01 2.554631901201510 2004-06-01 2.530815615661920 2004-07-01 2.537673502415330 2004-08-01 2.542363059287540 2004-09-01 2.347632242063640 2004-10-01 2.567657969682200 2004-11-01 2.545843609339250 2004-12-01 2.588091009238410 2005-01-01 2.281131825779370 2005-02-01 2.345946434555300 2005-03-01 2.408140512726350 2005-04-01 2.299523791558330 2005-05-01 2.189011076218480 2005-06-01 2.205376882835560 2005-07-01 2.331192386001480 2005-08-01 2.368616763717160 2005-09-01 2.594221831098970 2005-10-01 2.487389487398930 2005-11-01 2.371474133122030 2005-12-01 2.303023533428570 2006-01-01 2.524689792177670 2006-02-01 2.474324067503130 2006-03-01 2.293898213937390 2006-04-01 2.571653126642920 2006-05-01 2.714109128273400 2006-06-01 2.752440419626480 2006-07-01 2.818320182962930 2006-08-01 2.700093622455500 2006-09-01 2.392257047325140 2006-10-01 2.190584605401650 2006-11-01 2.397878182301530 2006-12-01 2.453590577413520 2007-01-01 2.427580826361230 2007-02-01 2.454267569158710 2007-03-01 2.646476044792360 2007-04-01 2.624862576782910 2007-05-01 2.449980708469290 2007-06-01 2.431732059926820 2007-07-01 2.223281852304760 2007-08-01 2.199262510860710 2007-09-01 2.448983622186870 2007-10-01 2.870688374770080 2007-11-01 3.310156718403950 2007-12-01 3.392194399615920 2008-01-01 3.521376003619950 2008-02-01 3.647014995414140 2008-03-01 3.808094008946710 2008-04-01 3.695381634353430 2008-05-01 4.131494816076270 2008-06-01 4.369446822127870 2008-07-01 4.640731285604800 2008-08-01 4.511339145047020 2008-09-01 4.357108434389860 2008-10-01 3.958396160241130 2008-11-01 3.040110080118080 2008-12-01 2.441109503523900 2009-01-01 2.103553349845820 2009-02-01 2.036714082617880 2009-03-01 1.594723682479410 2009-04-01 1.391368951139370 2009-05-01 0.927524186672125 2009-06-01 0.775090179653367 2009-07-01 0.411584778901690 2009-08-01 0.632451941540117 2009-09-01 0.422356038391034 2009-10-01 0.558974700667763 2009-11-01 1.053170894059370 2009-12-01 1.531964875325360 2010-01-01 1.797587234291560 2010-02-01 1.784324026011060 2010-03-01 2.133449619588440 2010-04-01 2.300546987939540 2010-05-01 2.202931226950150 2010-06-01 2.014175878084150 2010-07-01 2.138132730514760 2010-08-01 2.107620716565520 2010-09-01 2.310932075245940 2010-10-01 2.393858337071820 2010-11-01 2.343474351757730 2010-12-01 2.542470973001870 2011-01-01 2.654684237243190 2011-02-01 2.742161305836010 2011-03-01 2.858216219937690 2011-04-01 2.927291857092230 2011-05-01 3.122569139361380 2011-06-01 3.013279493271560 2011-07-01 3.011326423307750 2011-08-01 3.059671171774240 2011-09-01 3.237558958858020 2011-10-01 3.354792718892190 2011-11-01 3.493239492254390 2011-12-01 3.273331126606940 2012-01-01 3.187621428708040 2012-02-01 3.216863335085140 2012-03-01 3.125654967154990 2012-04-01 3.065653573762980 2012-05-01 2.736513952335580 2012-06-01 2.693589194283630 2012-07-01 2.757756250828630 2012-08-01 2.894658248199800 2012-09-01 2.876317174914330 2012-10-01 2.783073379526630 2012-11-01 2.453399903038580 2012-12-01 2.398268387459600 2013-01-01 2.246077645800080 2013-02-01 2.101723607482700 2013-03-01 1.999915822859740 2013-04-01 1.583576664227470 2013-05-01 1.769543793648240 2013-06-01 2.051279407273510 2013-07-01 2.139767987260840 2013-08-01 1.909824573965490 2013-09-01 1.713190171750950 2013-10-01 1.437817453469100 2013-11-01 1.419960656678430 2013-12-01 1.501272800274490 2014-01-01 1.450601634733490 2014-02-01 1.394250933643520 2014-03-01 1.297510921998750 2014-04-01 1.522481156536670 2014-05-01 1.371404744932730 2014-06-01 1.387541548500830 2014-07-01 1.265705641290630 2014-08-01 1.228140993469190 2014-09-01 1.115003377845550 2014-10-01 1.172504419110960 2014-11-01 1.089973926169000 2014-12-01 0.677805728767698 2015-01-01 0.267353708526182 2015-02-01 0.455964828865723 2015-03-01 0.578071648163861 2015-04-01 0.699472982401802 2015-05-01 0.926559871831135 2015-06-01 0.777530540995207 2015-07-01 0.713623324514199 2015-08-01 0.687919760687881 2015-09-01 0.623207032166703 2015-10-01 0.706118642017524 2015-11-01 0.827902332801704 2015-12-01 0.949944280568231 2016-01-01 1.103040829621400 2016-02-01 0.758529131093162 2016-03-01 0.731840584496052 2016-04-01 0.525071452000901 2016-05-01 0.604879666043384 2016-06-01 0.824893335930604 2016-07-01 0.984836068163283 2016-08-01 0.984106971432543 2016-09-01 1.103314918363890 2016-10-01 1.200047697026120 2016-11-01 1.289152554279080 2016-12-01 1.862041236877550 2017-01-01 2.364639197206560 2017-02-01 2.675665889371330 2017-03-01 2.518808456473820 2017-04-01 2.778838085783680 2017-05-01 2.488844765599290 2017-06-01 2.282725193106460 2017-07-01 2.264881910796150 2017-08-01 2.452574760033680 2017-09-01 2.554988100407700 2017-10-01 2.532792521645570 2017-11-01 2.727438080191840 2017-12-01 2.507928654978670 2018-01-01 2.287340260343980 2018-02-01 2.133921085351630 2018-03-01 2.238673080430790 2018-04-01 2.257409604300830 2018-05-01 2.761659867502250 2018-06-01 3.118649196129640 2018-07-01 3.211709309131850 2018-08-01 3.402174951418040 2018-09-01 3.940395034171080