date,value
1947-01-01,0.09035054531098353
1947-04-01,0.08451505886944644
1947-07-01,0.08239277200152252
1947-10-01,0.08643477256540068
1948-01-01,0.08933100526074161
1948-04-01,0.0915041072470255
1948-07-01,0.08793464089743405
1948-10-01,0.08474636724852515
1949-01-01,0.07883752554229659
1949-04-01,0.07065387634466061
1949-07-01,0.07261560561253842
1949-10-01,0.07189600446370835
1950-01-01,0.0713497229620978
1950-04-01,0.08201237675759257
1950-07-01,0.09338542866692844
1950-10-01,0.09870759036709434
1951-01-01,0.07840773809523809
1951-04-01,0.0656485221889622
1951-07-01,0.0591317216158914
1951-10-01,0.06342895967746463
1952-01-01,0.06131399032849759
1952-04-01,0.05898401794864694
1952-07-01,0.05871618516131313
1952-10-01,0.06237198407613205
1953-01-01,0.06342852724367236
1953-04-01,0.06294336424598404
1953-07-01,0.06186808326793142
1953-10-01,0.0501360209342695
1954-01-01,0.05689187611101739
1954-04-01,0.05834699485394475
1954-07-01,0.06090343635229005
1954-10-01,0.06382994691469827
1955-01-01,0.06919600167524868
1955-04-01,0.06894850213032463
1955-07-01,0.069366674337143
1955-10-01,0.07118638639005061
1956-01-01,0.06958789846866145
1956-04-01,0.07050514562453757
1956-07-01,0.06695833915126853
1956-10-01,0.06923248990689805
1957-01-01,0.0684875228564921
1957-04-01,0.06542661935278851
1957-07-01,0.06313791737053953
1957-10-01,0.058799993261228485
1958-01-01,0.0518372759549985
1958-04-01,0.052121073439863726
1958-07-01,0.05570546742658607
1958-10-01,0.060970263534545745
1959-01-01,0.064087943095644
1959-04-01,0.06781937537907559
1959-07-01,0.061788379419237614
1959-10-01,0.06046159667045024
1960-01-01,0.06378720643953353
1960-04-01,0.059717601833370285
1960-07-01,0.05685992038181538
1960-10-01,0.05539090368883944
1961-01-01,0.05361841260288651
1961-04-01,0.0552088489681304
1961-07-01,0.056929803545759466
1961-10-01,0.05958368066798482
1962-01-01,0.05925122850846698
1962-04-01,0.05857426969548575
1962-07-01,0.059447282304397005
1962-10-01,0.060537662507349585
1963-01-01,0.05904721460834652
1963-04-01,0.061376541876802304
1963-07-01,0.061530559676248056
1963-10-01,0.06221996580715603
1964-01-01,0.06629970350331879
1964-04-01,0.06541726955799103
1964-07-01,0.06576583996959674
1964-10-01,0.06478240231515275
1965-01-01,0.07063207902032628
1965-04-01,0.07200033963716342
1965-07-01,0.0714204688765726
1965-10-01,0.0732998469923833
1966-01-01,0.07303696964060855
1966-04-01,0.07276693487175474
1966-07-01,0.07124730673785255
1966-10-01,0.06902299526462195
1967-01-01,0.0653328121113046
1967-04-01,0.06508728678901698
1967-07-01,0.06534655982839305
1967-10-01,0.06749984967762943
1968-01-01,0.06468093341998511
1968-04-01,0.06477913916073737
1968-07-01,0.0641800541634896
1968-10-01,0.0646663843062715
1969-01-01,0.06240983674221337
1969-04-01,0.059795643297456944
1969-07-01,0.05692864549553574
1969-10-01,0.055690571759105405
1970-01-01,0.05262842465753424
1970-04-01,0.05171003630401687
1970-07-01,0.05168411660876619
1970-10-01,0.0490075399041712
1971-01-01,0.052990073611027914
1971-04-01,0.053983884400802234
1971-07-01,0.05650455346339185
1971-10-01,0.05774609194175907
1972-01-01,0.05914551250640943
1972-04-01,0.0582965944365347
1972-07-01,0.05966684384990772
1972-10-01,0.06282169366635965
1973-01-01,0.06936311697362595
1973-04-01,0.07004307982179622
1973-07-01,0.07055260078195724
1973-10-01,0.07197303509001286
1974-01-01,0.07554675434496438
1974-04-01,0.07551553668623893
1974-07-01,0.07760127074805163
1974-10-01,0.06745603336669419
1975-01-01,0.05860161028045016
1975-04-01,0.060178478351281865
1975-07-01,0.06774455790668024
1975-10-01,0.07043297569403649
1976-01-01,0.07289368174559883
1976-04-01,0.07371842628643244
1976-07-01,0.07359434483328899
1976-10-01,0.07190867059613612
1977-01-01,0.07534314770638142
1977-04-01,0.07721693907658364
1977-07-01,0.07795379030084405
1977-10-01,0.07680696031456334
1978-01-01,0.07805616590096061
1978-04-01,0.08180618476406878
1978-07-01,0.08252802756348189
1978-10-01,0.08473771563322458
1979-01-01,0.08423698156818821
1979-04-01,0.08536314755019495
1979-07-01,0.08472445844806031
1979-10-01,0.08169367039626886
1980-01-01,0.07999700341453028
1980-04-01,0.06950751996888486
1980-07-01,0.07061900946023485
1980-10-01,0.06967577574301881
1981-01-01,0.06784155718284901
1981-04-01,0.06327113844223553
1981-07-01,0.06290849347468526
1981-10-01,0.06147095023253347
1982-01-01,0.055419445121433514
1982-04-01,0.055006464640159035
1982-07-01,0.05305166885401931
1982-10-01,0.05066771763974254
1983-01-01,0.050089638059165435
1983-04-01,0.0540115143196917
1983-07-01,0.05549120820648713
1983-10-01,0.05545067259492567
1984-01-01,0.05609978777161217
1984-04-01,0.05496955931525356
1984-07-01,0.051867050254024605
1984-10-01,0.05137094855529075
1985-01-01,0.048187684271641225
1985-04-01,0.04763594478737159
1985-07-01,0.047486842834128865
1985-10-01,0.047201746857739736
1986-01-01,0.03874736185012336
1986-04-01,0.03767088930641052
1986-07-01,0.03709120598723563
1986-10-01,0.038056933283837455
1987-01-01,0.04059289866747308
1987-04-01,0.045902341994440474
1987-07-01,0.04825639183098563
1987-10-01,0.048654411327170126
1988-01-01,0.049715258411959534
1988-04-01,0.05137189799839539
1988-07-01,0.050328848052229536
1988-10-01,0.05163191690207387
1989-01-01,0.05055347667762667
1989-04-01,0.048671144914452
1989-07-01,0.04614857871269006
1989-10-01,0.04576111964758022
1990-01-01,0.046452220196464965
1990-04-01,0.04782242633759439
1990-07-01,0.04807488334389561
1990-10-01,0.04802012012857191
1991-01-01,0.049625379731964826
1991-04-01,0.04971435622346317
1991-07-01,0.05002226094141787
1991-10-01,0.050458772711164744
1992-01-01,0.051830537998605083
1992-04-01,0.053248125452902535
1992-07-01,0.05004857125583689
1992-10-01,0.050301438315124694
1993-01-01,0.049727325777599654
1993-04-01,0.051256884516075116
1993-07-01,0.05261564133495338
1993-10-01,0.05452784235738489
1994-01-01,0.05807886613904109
1994-04-01,0.05899393826158963
1994-07-01,0.06131160846124205
1994-10-01,0.06212087313058866
1995-01-01,0.0634841336194342
1995-04-01,0.0661277138086191
1995-07-01,0.06628891238916457
1995-10-01,0.06650965328656383
1996-01-01,0.06827301070551471
1996-04-01,0.06726014709617022
1996-07-01,0.066074411713199
1996-10-01,0.06670184924013026
1997-01-01,0.06748837540230943
1997-04-01,0.06861486179138555
1997-07-01,0.07021048450372355
1997-10-01,0.06980954737484667
1998-01-01,0.06081240808077163
1998-04-01,0.06002520262943049
1998-07-01,0.058685155963147856
1998-10-01,0.05585135599980676
1999-01-01,0.05869960332276419
1999-04-01,0.05968554125932559
1999-07-01,0.05876917308462203
1999-10-01,0.05969514257786912
2000-01-01,0.05649199039529287
2000-04-01,0.05458014075326024
2000-07-01,0.05370819326886127
2000-10-01,0.05110914947702818
2001-01-01,0.05376051397528861
2001-04-01,0.05488989527313898
2001-07-01,0.05020824644603425
2001-10-01,0.048094806371016645
2002-01-01,0.05178912227013492
2002-04-01,0.056446498999766705
2002-07-01,0.06095034249693191
2002-10-01,0.06710685676982357
2003-01-01,0.06617607511064173
2003-04-01,0.0656447768830364
2003-07-01,0.06787036094834217
2003-10-01,0.071368357101974
2004-01-01,0.08007558552489058
2004-04-01,0.08232347311504386
2004-07-01,0.0847196254429085
2004-10-01,0.08347578320287337
2005-01-01,0.0991922637277805
2005-04-01,0.10003570473438278
2005-07-01,0.1018975484533475
2005-10-01,0.10563768011957787
2006-01-01,0.10540217189885258
2006-04-01,0.10708635173321203
2006-07-01,0.10780928131615808
2006-10-01,0.10344676043978586
2007-01-01,0.09738562096100982
2007-04-01,0.10154698466513383
2007-07-01,0.09679048856858262
2007-10-01,0.09737984043284097
2008-01-01,0.09013916123563546
2008-04-01,0.09067941027469878
2008-07-01,0.08620652971384185
2008-10-01,0.05293393598078998
2009-01-01,0.07802117982645852
2009-04-01,0.08339776914863228
2009-07-01,0.09567473801779267
2009-10-01,0.10232929629412482
2010-01-01,0.10640050770050817
2010-04-01,0.10418957886590648
2010-07-01,0.10874189245566868
2010-10-01,0.10761310284076384
2011-01-01,0.09861200063993963
2011-04-01,0.10156799221265007
2011-07-01,0.10175022750976502
2011-10-01,0.10551430828141366
2012-01-01,0.12051219739115634
2012-04-01,0.11477169132199037
2012-07-01,0.11511059042653221
2012-10-01,0.11254036818427104
2013-01-01,0.10999809048299489
2013-04-01,0.10902517334444717
2013-07-01,0.10986409095096933
2013-10-01,0.11128733629249711
2014-01-01,0.10746523757950029
2014-04-01,0.11145812189028882
2014-07-01,0.11295238411909801
2014-10-01,0.11041057824722635
2015-01-01,0.10391291756998315
2015-04-01,0.10388142441945704
2015-07-01,0.10015343209344653
2015-10-01,0.09474993323890135
2016-01-01,0.09747946297765407
2016-04-01,0.09969253465024186
2016-07-01,0.09832115036972866
2016-10-01,0.10093775182524271
2017-01-01,0.10610254602625176
2017-04-01,0.10390900228992321
2017-07-01,0.10468412111252985
2017-10-01,0.09306891300771848
2018-01-01,0.09774355311959489
2018-04-01,0.10025226287348199
2018-07-01,0.09684947109751413
2018-10-01,0.09637497934182296
2019-01-01,0.09687280926125923
2019-04-01,0.09623787114440653
2019-07-01,0.09613567991889921
2019-10-01,0.09669922109465293
2020-01-01,0.09211172256034346
2020-04-01,0.09310962546843314
2020-07-01,0.11777439792610145
2020-10-01,0.1099905555988185
2021-01-01,0.11808100983719193
2021-04-01,0.12706514486175982
2021-07-01,0.12392680247431917
2021-10-01,0.11910536075339229
2022-01-01,0.11636987058428205
2022-04-01,0.12238957039242536
2022-07-01,0.1165277546466589
2022-10-01,0.1071284629106536
2023-01-01,0.11423474857020312
2023-04-01,0.11300633672823616
2023-07-01,0.11459914241830968
2023-10-01,0.11412531891696218
2024-01-01,0.11577619166975969
2024-04-01,0.1166170491640875
2024-07-01,0.11397631973965594
2024-10-01,0.12089569533149043
2025-01-01,0.11135249033548644
2025-04-01,0.11036310143063503
2025-07-01,0.11514680027669864
2025-10-01,0.12026133441364507
2026-01-01,0.123748451480107
2026-04-01,0.13143546531142833