date,value 1982-01-01,7.623742312603177 1982-02-01,7.656648072173956 1982-03-01,7.12899337009474 1982-04-01,7.408347166532389 1982-05-01,7.3200409128716855 1982-06-01,7.345378640802906 1982-07-01,7.558986621775887 1982-08-01,6.879798140898191 1982-09-01,6.507224894049537 1982-10-01,6.279162181044623 1982-11-01,5.6262142298658935 1982-12-01,5.881731420974228 1983-01-01,5.543389499179106 1983-02-01,5.8617048740989945 1983-03-01,5.573838474432896 1983-04-01,5.700122440627811 1983-05-01,5.402393529821991 1983-06-01,5.8095582354328466 1983-07-01,5.818579104050467 1983-08-01,6.26942177514427 1983-09-01,6.355024852336738 1983-10-01,6.032693329282391 1983-11-01,6.143937924111651 1983-12-01,6.148424544324151 1984-01-01,6.215304494076353 1984-02-01,6.101018099289153 1984-03-01,6.4625793714329545 1984-04-01,6.628748742192138 1984-05-01,6.851464913527818 1984-06-01,7.345768329945996 1984-07-01,7.446144276620427 1984-08-01,6.871148667311723 1984-09-01,6.97565415359848 1984-10-01,6.608853257555455 1984-11-01,6.066481444771659 1984-12-01,6.075625108358305 1985-01-01,6.161900565651923 1985-02-01,6.0158178319979205 1985-03-01,6.383835805699016 1985-04-01,6.191388040383693 1985-05-01,5.937486563869259 1985-06-01,5.156005304248854 1985-07-01,5.3339283521709255 1985-08-01,5.590118138625224 1985-09-01,5.423274095756784 1985-10-01,5.407695292006934 1985-11-01,5.242490803194717 1985-12-01,5.080769517162249 1986-01-01,4.547185264226664 1986-02-01,4.623880408706063 1986-03-01,4.209182046554958 1986-04-01,3.948304907503154 1986-05-01,4.0465903220159385 1986-06-01,4.584483813877565 1986-07-01,3.993027852639149 1986-08-01,3.920580702645605 1986-09-01,3.551726419453353 1986-10-01,3.867054590195943 1986-11-01,3.7438863922086023 1986-12-01,3.543734361001219 1987-01-01,3.6045657277034007 1987-02-01,3.5785813470472507 1987-03-01,3.554785452055467 1987-04-01,3.760199168107242 1987-05-01,4.3597144030657935 1987-06-01,4.332412655310094 1987-07-01,4.277528620777792 1987-08-01,4.480231760862889 1987-09-01,4.604200211948612 1987-10-01,4.959241809849571 1987-11-01,4.525431713427587 1987-12-01,4.5792755119308355 1988-01-01,4.605385555374621 1988-02-01,4.098369130234847 1988-03-01,4.04273805904781 1988-04-01,4.416556480660776 1988-05-01,4.496271753582617 1988-06-01,4.65088067672822 1988-07-01,4.435352750197127 1988-08-01,4.542744818251105 1988-09-01,4.7078602475228175 1988-10-01,4.461993911664754 1988-11-01,4.358722177538836 1988-12-01,4.617938723398832 1989-01-01,4.863193711814782 1989-02-01,4.7318798190800715 1989-03-01,4.973722267283658 1989-04-01,4.871050036770399 1989-05-01,4.629662485740043 1989-06-01,4.41116563809798 1989-07-01,4.002676225745951 1989-08-01,3.7393527322120423 1989-09-01,4.277071430003085 1989-10-01,4.297183329751212 1989-11-01,4.030134947263208 1989-12-01,4.0296658252165125 1990-01-01,4.127623404013053 1990-02-01,4.366927390601967 1990-03-01,4.551967616238951 1990-04-01,4.55216195548333 1990-05-01,4.80506176201458 1990-06-01,4.382611146597609 1990-07-01,4.341818504381612 1990-08-01,4.170532071078226 1990-09-01,4.3987446973957764 1990-10-01,4.2005390230505775 1990-11-01,4.05885497560017 1990-12-01,3.893920697629707 1991-01-01,3.92293114861382 1991-02-01,3.907053816321134 1991-03-01,4.175836184995414 1991-04-01,4.10983310343586 1991-05-01,4.049916307553238 1991-06-01,4.1876442632964705 1991-07-01,4.222253751575502 1991-08-01,4.13991739393444 1991-09-01,3.878495545273509 1991-10-01,3.6378620628223204 1991-11-01,3.565057716798671 1991-12-01,3.410333462438575 1992-01-01,3.198542448480315 1992-02-01,3.628291585504009 1992-03-01,3.660264978078348 1992-04-01,3.789859866268498 1992-05-01,3.746169973319813 1992-06-01,3.568576663204369 1992-07-01,3.3530994353809316 1992-08-01,3.124822603154068 1992-09-01,2.957342356744521 1992-10-01,2.728043745849222 1992-11-01,3.3246333353121686 1992-12-01,3.509685430856007 1993-01-01,3.26790845788079 1993-02-01,3.004785241190908 1993-03-01,2.67342493237856 1993-04-01,2.77451692817479 1993-05-01,2.664720620430829 1993-06-01,2.761237339447017 1993-07-01,2.591798778045749 1993-08-01,2.702903069317015 1993-09-01,2.450580691247309 1993-10-01,2.398843191745032 1993-11-01,2.562295326328904 1993-12-01,2.7201164729759872 1994-01-01,2.772684926219558 1994-02-01,2.6201687494288297 1994-03-01,2.971203051258004 1994-04-01,3.659182782945869 1994-05-01,3.6245770927648873 1994-06-01,3.593565519428135 1994-07-01,3.786419403848552 1994-08-01,3.580284054502715 1994-09-01,3.6371044996802095 1994-10-01,3.956623068708412 1994-11-01,4.103252746379081 1994-12-01,4.1169530702890675 1995-01-01,4.244290218509092 1995-02-01,4.054996725645498 1995-03-01,3.720985567707469 1995-04-01,3.6549273016207056 1995-05-01,3.420480803572559 1995-06-01,2.90471287134308 1995-07-01,2.938030155578125 1995-08-01,3.148488436779992 1995-09-01,3.017598558872737 1995-10-01,3.009729398553624 1995-11-01,2.884224410663969 1995-12-01,2.7221534615139853 1996-01-01,2.647591965077956 1996-02-01,2.597858724277812 1996-03-01,2.8972936008166377 1996-04-01,3.108334424121682 1996-05-01,3.3050258715781005 1996-06-01,3.4940802857810414 1996-07-01,3.369260553917434 1996-08-01,3.329415382760091 1996-09-01,3.5208220905108503 1996-10-01,3.3183494666206403 1996-11-01,3.141646748474246 1996-12-01,2.950935114928959 1997-01-01,3.2548678029941445 1997-02-01,3.213374889125484 1997-03-01,3.308555800372697 1997-04-01,3.550473373567679 1997-05-01,3.436981168056056 1997-06-01,3.27910832112531 1997-07-01,3.1998764205946273 1997-08-01,3.088511897900703 1997-09-01,3.150869524771769 1997-10-01,3.0165907448395624 1997-11-01,2.972956828437235 1997-12-01,2.919851044907411 1998-01-01,2.840301628373516 1998-02-01,2.777068909279663 1998-03-01,2.852511963630812 1998-04-01,2.846065534382559 1998-05-01,2.893042275637537 1998-06-01,2.870997451217253 1998-07-01,2.770705710280165 1998-08-01,2.779340183883193 1998-09-01,2.496239209462006 1998-10-01,1.935145474427074 1998-11-01,2.2210304823376927 1998-12-01,2.22957980514185 1999-01-01,2.308152454779598 1999-02-01,2.3675901914868973 1999-03-01,2.710358807230467 1999-04-01,2.67778993374501 1999-05-01,2.704238047890141 1999-06-01,3.116563107135541 1999-07-01,3.005561801913754 1999-08-01,3.1015433142252977 1999-09-01,3.169465426910558 1999-10-01,3.1429218550964295 1999-11-01,3.1472535293900337 1999-12-01,3.192203496304554 2000-01-01,3.411051121765263 2000-02-01,3.513343385163231 2000-03-01,3.440347355759352 2000-04-01,3.202966652536991 2000-05-01,3.3605311014588843 2000-06-01,3.127892900207812 2000-07-01,3.06235485376154 2000-08-01,3.045613275719989 2000-09-01,2.885996179570946 2000-10-01,2.876625589773199 2000-11-01,2.833137928786588 2000-12-01,2.639210418281095 2001-01-01,2.251432937092537 2001-02-01,2.267013977618575 2001-03-01,2.267294725540403 2001-04-01,2.220983911036444 2001-05-01,2.4334179683445147 2001-06-01,2.526456023167459 2001-07-01,2.528367435151533 2001-08-01,2.334361416779216 2001-09-01,2.177767973302852 2001-10-01,1.986932453926508 2001-11-01,1.814765531540673 2001-12-01,2.040576298619389 2002-01-01,2.523499959932926 2002-02-01,2.400073427841372 2002-03-01,2.4212901801989197 2002-04-01,2.701126316890513 2002-05-01,2.350549933208896 2002-06-01,2.319863913796937 2002-07-01,2.141928553150377 2002-08-01,1.742262594203643 2002-09-01,1.4461082500121099 2002-10-01,1.2686956426206188 2002-11-01,1.395586810128195 2002-12-01,1.692253663239753 2003-01-01,1.488201742614148 2003-02-01,1.466378999800522 2003-03-01,1.223590951599201 2003-04-01,1.309618469031286 2003-05-01,1.370720979941694 2003-06-01,0.9051157364225463 2003-07-01,1.128688956029663 2003-08-01,1.751704464361489 2003-09-01,1.897238247008274 2003-10-01,1.380819363334494 2003-11-01,1.7139016469494828 2003-12-01,1.713572660681599 2004-01-01,1.701954364618272 2004-02-01,1.571580741091225 2004-03-01,1.4701646620849889 2004-04-01,1.358149413380364 2004-05-01,1.883245161771608 2004-06-01,1.946576109313539 2004-07-01,1.9337986184157112 2004-08-01,1.8558026944109332 2004-09-01,1.4846916426642411 2004-10-01,1.687106299088154 2004-11-01,1.6076887639935211 2004-12-01,1.909536621931968 2005-01-01,1.779275896837667 2005-02-01,1.81315912000019 2005-03-01,1.979341111632589 2005-04-01,2.020526836697903 2005-05-01,1.789865682775948 2005-06-01,1.666888107383685 2005-07-01,1.820021081767443 2005-08-01,2.008216774057314 2005-09-01,1.735690174064965 2005-10-01,1.9670448395101139 2005-11-01,2.075689005595786 2005-12-01,2.018347270903436 2006-01-01,2.064841724460626 2006-02-01,2.204412778624465 2006-03-01,2.383620875959587 2006-04-01,2.3583930306825494 2006-05-01,2.4063701465657608 2006-06-01,2.450809862313478 2006-07-01,2.496349530198012 2006-08-01,2.298286096232476 2006-09-01,2.206057191174784 2006-10-01,2.212062074581814 2006-11-01,2.199885402863892 2006-12-01,2.1221377825170773 2007-01-01,2.148075794691401 2007-02-01,2.287150911405079 2007-03-01,2.02498640253111 2007-04-01,2.077486853000188 2007-05-01,2.031844203471804 2007-06-01,2.246309734238142 2007-07-01,2.37357341796877 2007-08-01,2.133880771964547 2007-09-01,1.9462225818144372 2007-10-01,1.989114218742783 2007-11-01,1.826247118633973 2007-12-01,1.38696881312606 2008-01-01,1.399490682654015 2008-02-01,1.111122862056632 2008-03-01,1.025220078482886 2008-04-01,1.06289421700746 2008-05-01,1.400516290668482 2008-06-01,1.487554012228934 2008-07-01,1.445581092444758 2008-08-01,1.35649733139354 2008-09-01,1.239574717960838 2008-10-01,1.48506331284469 2008-11-01,1.6316285391118508 2008-12-01,0.9753798467602185 2009-01-01,0.9385410405226674 2009-02-01,1.039306493328457 2009-03-01,1.250741766858789 2009-04-01,0.7128196734821358 2009-05-01,1.0174109030204839 2009-06-01,1.322105541113068 2009-07-01,1.266902816267875 2009-08-01,1.159040366160068 2009-09-01,0.9492376399578712 2009-10-01,0.997141156474489 2009-11-01,1.061410044008182 2009-12-01,0.8480405635971678 2010-01-01,1.2979248621654231 2010-02-01,1.124515411364295 2010-03-01,0.9987315301932173 2010-04-01,1.309105296694601 2010-05-01,1.22638786278391 2010-06-01,1.0193609843226439 2010-07-01,0.8467590684334707 2010-08-01,0.6561638932852182 2010-09-01,0.57706774701723 2010-10-01,0.40880525236085585 2010-11-01,0.3388895572359221 2010-12-01,0.6262092720313267 2011-01-01,0.8639771568807556 2011-02-01,0.8296871849109898 2011-03-01,0.8738508778417531 2011-04-01,0.9775028309227881 2011-05-01,0.7114748367264195 2011-06-01,0.49226699111467964 2011-07-01,0.5739523549251996 2011-08-01,0.394974907210906 2011-09-01,0.2149388750925752 2011-10-01,0.09856249221210356 2011-11-01,0.1370695321762593 2011-12-01,0.1444683072874155 2012-01-01,0.1461005141504521 2012-02-01,0.02185102691243625 2012-03-01,0.1692369103490445 2012-04-01,0.1946457271256212 2012-05-01,-0.08722197636244694 2012-06-01,-0.04815105035679617 2012-07-01,-0.05482602530292398 2012-08-01,-0.06008477539263436 2012-09-01,-0.1692571387416237 2012-10-01,-0.09317223669535143 2012-11-01,-0.0057370538610769005 2012-12-01,-0.1723774494444027 2013-01-01,0.08440141666923856 2013-02-01,0.1721001765680248 2013-03-01,0.05034072072566527 2013-04-01,-0.02421188108210062 2013-05-01,-0.01939122836104979 2013-06-01,0.22769375495399302 2013-07-01,0.5463810425317026 2013-08-01,0.4750686857992664 2013-09-01,0.540834513403753 2013-10-01,0.49296942497001817 2013-11-01,0.48963774455900416 2013-12-01,0.4182999279181812 2014-01-01,0.6806367051097082 2014-02-01,0.5086773068390036 2014-03-01,0.5804531830663714 2014-04-01,0.7022220982906939 2014-05-01,0.6268541542874525 2014-06-01,0.6245294407996472 2014-07-01,0.5909949546516648 2014-08-01,0.6494056958733948 2014-09-01,0.5808599340033406 2014-10-01,0.7009646953985798 2014-11-01,0.7133002629724674 2014-12-01,0.3847253730060852 2015-01-01,0.7099427981653903 2015-02-01,0.5383803750467855 2015-03-01,0.7517054204747149 2015-04-01,0.41032251664207353 2015-05-01,0.5339214396164578 2015-06-01,0.5537777953189169 2015-07-01,0.6670749013176267 2015-08-01,0.548305564552283 2015-09-01,0.512459908347183 2015-10-01,0.5287717089586441 2015-11-01,0.6662057039784065 2015-12-01,0.6474222298754244 2016-01-01,0.7345059737336207 2016-02-01,0.5387380040757334 2016-03-01,0.551407419793913 2016-04-01,0.34527267550343826 2016-05-01,0.4136498304128635 2016-06-01,0.5190985204088853 2016-07-01,0.1653469407614078 2016-08-01,0.22683745854018253 2016-09-01,0.2160743036093106 2016-10-01,0.28979681451632644 2016-11-01,0.3466093307575698 2016-12-01,0.7004565753907281 2017-01-01,0.7256510734707188 2017-02-01,0.7743815775763713 2017-03-01,0.9165030180171121 2017-04-01,0.7657537769986664 2017-05-01,0.7764087985402484 2017-06-01,0.7361113469079155 2017-07-01,0.7250161184422258 2017-08-01,0.6708601636710877 2017-09-01,0.5652126409843056 2017-10-01,0.7291435060241029 2017-11-01,0.7521904534019173 2017-12-01,0.5730492269436337 2018-01-01,0.873788010555215 2018-02-01,1.08846929481093 2018-03-01,1.029535829065063 2018-04-01,1.014354329394185 2018-05-01,1.216091799560343 2018-06-01,1.245728142663874 2018-07-01,1.1552337067240541 2018-08-01,1.255241616628743 2018-09-01,1.13214689769487 2018-10-01,1.30012680994454 2018-11-01,1.3086583519184352 2018-12-01,1.2549666558257602 2019-01-01,1.040434344468194 2019-02-01,1.068182846288955 2019-03-01,0.5172076521805932 2019-04-01,0.42030374997824027 2019-05-01,0.5404288002171954 2019-06-01,0.42130161824932166 2019-07-01,0.4405718819222492 2019-08-01,0.4200517923907419 2019-09-01,0.2350055193791797 2019-10-01,0.368324526951251 2019-11-01,0.4336118479771061 2019-12-01,0.5142649298253519 2020-01-01,0.5050963082399085 2020-02-01,0.3159857912666278 2020-03-01,-0.1278374455283066 2020-04-01,-0.11159442435054209 2020-05-01,-0.02785652408395182 2020-06-01,-0.1536993553220846 2020-07-01,-0.34534449699373493 2020-08-01,-0.40713399889413804 2020-09-01,-0.34333693195369314 2020-10-01,-0.29173844771995794 2020-11-01,-0.21395563539148002 2020-12-01,-0.2323214568126287 2021-01-01,-0.2350172067308755 2021-02-01,-0.23082379645332501 2021-03-01,0.012506873752820731 2021-04-01,0.11804693613703969 2021-05-01,0.03694758309377158 2021-06-01,-0.0056648535581593044 2021-07-01,0.03504107831442029 2021-08-01,-0.2610187892398262 2021-09-01,-0.19473086547032412 2021-10-01,0.08790114092441742 2021-11-01,0.1639978845476628 2021-12-01,0.091689168794623 2022-01-01,0.3194950987117438 2022-02-01,0.44159289294350856 2022-03-01,0.3470899162976302 2022-04-01,0.949400265390591 2022-05-01,1.2038977568376699 2022-06-01,1.02509350690327 2022-07-01,1.062174927571707 2022-08-01,0.8556252966071068 2022-09-01,1.204248680792072 2022-10-01,1.797332031489821 2022-11-01,1.930713048324121 2022-12-01,1.576125150187671 2023-01-01,1.783098965661184 2023-02-01,1.420202174144705 2023-03-01,2.059636357596882 2023-04-01,1.4439138553589148 2023-05-01,1.53690405829745 2023-06-01,1.060631071464942 2023-07-01,1.426047301662144 2023-08-01,1.602095389481712 2023-09-01,1.699707539727355 2023-10-01,2.082460756364706 2023-11-01,2.094328641301075 2023-12-01,1.680899067805165 2024-01-01,1.680871447502169 2024-02-01,1.6168231031176719 2024-03-01,1.9259692761555889 2024-04-01,1.938193964480505 2024-05-01,2.103398779878818 2024-06-01,1.999566707581464 2024-07-01,2.048395934604067 2024-08-01,1.6641898364737568 2024-09-01,1.5815806900533298 2024-10-01,1.480148337451444 2024-11-01,1.958416876463765 2024-12-01,1.824368791425441 2025-01-01,2.055532489739372 2025-02-01,2.027689350354025 2025-03-01,1.859174685417496 2025-04-01,1.670487010307728 2025-05-01,1.66614308174607 2025-06-01,1.8692399377498818 2025-07-01,1.6598873481464198 2025-08-01,1.566329261893121 2025-09-01,1.565199183037171 2025-10-01,1.5537869330208751 2025-11-01,1.6084276873835461 2025-12-01,1.457286312179907 2026-01-01,1.666074728758413 2026-02-01,1.748093294748834 2026-03-01,1.474732787974075 2026-04-01,1.5938719127026608 2026-05-01,1.6280080614337908 2026-06-01,1.9150911928824839 2026-07-01,2.073275585237301 2026-08-01,2.190890446408611 2026-09-01,2.248325114409402 2026-10-01,2.474402590741779