date,value
1947-10-01,3.789451192515737
1948-10-01,3.699054093577681
1949-10-01,3.9888776803497064
1950-10-01,3.661660597915267
1951-10-01,3.5954129676734667
1952-01-01,3.6100105608359736
1952-04-01,3.6606431598482123
1952-07-01,3.6291062575298954
1952-10-01,3.51439555476193
1953-01-01,3.4762178462807363
1953-04-01,3.448470832088914
1953-07-01,3.490854383377091
1953-10-01,3.591750654195922
1954-01-01,3.6566920551713396
1954-04-01,3.70554567091663
1954-07-01,3.752046056737153
1954-10-01,3.7130216594035037
1955-01-01,3.64578415921641
1955-04-01,3.6559359669016827
1955-07-01,3.673505012540067
1955-10-01,3.6624280471845747
1956-01-01,3.73833758578816
1956-04-01,3.7089235667361717
1956-07-01,3.7073323714347146
1956-10-01,3.715253994349166
1957-01-01,3.669597832172149
1957-04-01,3.730937979979874
1957-07-01,3.66925274771111
1957-10-01,3.740218251962667
1958-01-01,3.8702250074859905
1958-04-01,3.8916919856433987
1958-07-01,3.8922075329171477
1958-10-01,3.845822782276226
1959-01-01,3.8049203456586915
1959-04-01,3.7683415191341103
1959-07-01,3.776149735064777
1959-10-01,3.8167593643586835
1960-01-01,3.7337684834367764
1960-04-01,3.7782934131736523
1960-07-01,3.73787215636249
1960-10-01,3.873137022234481
1961-01-01,3.9335746709282993
1961-04-01,3.8981378646194282
1961-07-01,3.8802073057301505
1961-10-01,3.890377739350892
1962-01-01,3.8250661180815904
1962-04-01,3.6257616187458983
1962-07-01,3.6382771207187856
1962-10-01,3.7914107924479
1963-01-01,3.7908688182835966
1963-04-01,3.7926183640544218
1963-07-01,3.7711639801130903
1963-10-01,3.7085274139138575
1964-01-01,3.689087548632323
1964-04-01,3.7080100313257915
1964-07-01,3.7022618928920816
1964-10-01,3.7383120207537726
1965-01-01,3.6932361832848053
1965-04-01,3.6268140801516315
1965-07-01,3.6380786389847906
1965-10-01,3.6355775746025496
1966-01-01,3.536181688855824
1966-04-01,3.5349803287282557
1966-07-01,3.4363096879354056
1966-10-01,3.4866194968930833
1967-01-01,3.567981567693711
1967-04-01,3.596073184033132
1967-07-01,3.62881674647176
1967-10-01,3.638547874555131
1968-01-01,3.5529384079605277
1968-04-01,3.6049923796802887
1968-07-01,3.6061210001840505
1968-10-01,3.7173445037860398
1969-01-01,3.6438872205505284
1969-04-01,3.59246793918852
1969-07-01,3.5423600619832305
1969-10-01,3.528717031403067
1970-01-01,3.5122336377473364
1970-04-01,3.3990453214662137
1970-07-01,3.457922635878898
1970-10-01,3.5611974190893325
1971-01-01,3.560781954198366
1971-04-01,3.5599137226480644
1971-07-01,3.5467781858322542
1971-10-01,3.609195856160269
1972-01-01,3.6217084386673593
1972-04-01,3.5703377135732164
1972-07-01,3.6014353392232556
1972-10-01,3.6815729352910367
1973-01-01,3.571848797450435
1973-04-01,3.507028496619603
1973-07-01,3.58616873035866
1973-10-01,3.4564119897933265
1974-01-01,3.444007513366671
1974-04-01,3.343729902696372
1974-07-01,3.2536259011067763
1974-10-01,3.2592876445836945
1975-01-01,3.3832453858510156
1975-04-01,3.4508676014148962
1975-07-01,3.3325619071013324
1975-10-01,3.327240240408984
1976-01-01,3.330247895206063
1976-04-01,3.368928464227795
1976-07-01,3.369620229009657
1976-10-01,3.37127799436791
1977-01-01,3.3370526106178673
1977-04-01,3.3148023574973404
1977-07-01,3.2834367018130513
1977-10-01,3.2842371792798497
1978-01-01,3.307895095244148
1978-04-01,3.2307421450974494
1978-07-01,3.247936058199965
1978-10-01,3.2107956199340397
1979-01-01,3.2749055057963044
1979-04-01,3.2998266857617207
1979-07-01,3.309722537220274
1979-10-01,3.3380108470150884
1980-01-01,3.33486950157034
1980-04-01,3.4488180250465446
1980-07-01,3.5137058403638317
1980-10-01,3.467851057608346
1981-01-01,3.3784071856977422
1981-04-01,3.428014009028209
1981-07-01,3.3570958676737996
1981-10-01,3.4306456499568094
1982-01-01,3.4838472443897968
1982-04-01,3.464711588212626
1982-07-01,3.49486650415498
1982-10-01,3.5499060854456395
1983-01-01,3.5782016132259535
1983-04-01,3.555731341481952
1983-07-01,3.491888574666613
1983-10-01,3.4201814317103882
1984-01-01,3.3877172628627954
1984-04-01,3.35983455710431
1984-07-01,3.380046275325947
1984-10-01,3.396478433072174
1985-01-01,3.42677619423153
1985-04-01,3.4531886403530527
1985-07-01,3.428298432583587
1985-10-01,3.495040608952016
1986-01-01,3.5579410252326253
1986-04-01,3.612490814768532
1986-07-01,3.6024540825306683
1986-10-01,3.68526805602939
1987-01-01,3.767918086568932
1987-04-01,3.761989197196931
1987-07-01,3.7857448631451587
1987-10-01,3.6809634755952185
1988-01-01,3.7327921153820376
1988-04-01,3.7314018631084642
1988-07-01,3.725894145851612
1988-10-01,3.7367438409677622
1989-01-01,3.73895264833605
1989-04-01,3.7478379812927054
1989-07-01,3.7888707747440247
1989-10-01,3.8234546443795514
1990-01-01,3.748870068474455
1990-04-01,3.739567330891734
1990-07-01,3.683288568333512
1990-10-01,3.765354096510203
1991-01-01,3.830412789813325
1991-04-01,3.7880874418258483
1991-07-01,3.7937487924869364
1991-10-01,3.850699652328822
1992-01-01,3.7935984681685126
1992-04-01,3.7468649369479303
1992-07-01,3.7515929376982844
1992-10-01,3.777236359162215
1993-01-01,3.7988963154393245
1993-04-01,3.7955594843778155
1993-07-01,3.8200483340981197
1993-10-01,3.812920014976322
1994-01-01,3.7796246921575145
1994-04-01,3.7405537599295484
1994-07-01,3.7509710376718286
1994-10-01,3.7187692816159483
1995-01-01,3.7606140896740343
1995-04-01,3.8110133799024055
1995-07-01,3.8201781176279184
1995-10-01,3.868255816017989
1996-01-01,3.8915796569294048
1996-04-01,3.8728952649374317
1996-07-01,3.866249485943886
1996-10-01,3.893137715319226
1997-01-01,3.884728952707005
1997-04-01,3.9767787224177042
1997-07-01,4.0299721003187985
1997-10-01,4.055226002283621
1998-01-01,4.193424448033493
1998-04-01,4.225220266588655
1998-07-01,4.082210725310783
1998-10-01,4.229630736677064
1999-01-01,4.2090012178482015
1999-04-01,4.277875986357639
1999-07-01,4.204528491138194
1999-10-01,4.369179758446547
2000-01-01,4.4297954475719745
2000-04-01,4.3296651352691145
2000-07-01,4.361935382890271
2000-10-01,4.259796426589229
2001-01-01,4.227992008963317
2001-04-01,4.297475705255213
2001-07-01,4.198615496102102
2001-10-01,4.314100932745428
2002-01-01,4.326563731627023
2002-04-01,4.232449901078856
2002-07-01,4.094965695682099
2002-10-01,4.15143580402286
2003-01-01,4.133895894704634
2003-04-01,4.249228172844732
2003-07-01,4.235186724890286
2003-10-01,4.3219808576689855
2004-01-01,4.477067244061218
2004-04-01,4.480235271487263
2004-07-01,4.5125308129248625
2004-10-01,4.6094905060295135
2005-01-01,4.5951653311439875
2005-04-01,4.65935563091674
2005-07-01,4.710631545772912
2005-10-01,4.752196303809218
2006-01-01,4.804207906958959
2006-04-01,4.77067870517189
2006-07-01,4.812846156086709
2006-10-01,4.862590066925174
2007-01-01,4.866344847661215
2007-04-01,4.851316705459669
2007-07-01,4.854623936349866
2007-10-01,4.751154361742916
2008-01-01,4.604538131271956
2008-04-01,4.483700365021469
2008-07-01,4.314286281917329
2008-10-01,4.184772068910021
2009-01-01,4.107693822603743
2009-04-01,4.148634999105779
2009-07-01,4.248046596269525
2009-10-01,4.19834227102413
2010-01-01,4.250686201667365
2010-04-01,4.153166451193252
2010-07-01,4.243774257250237
2010-10-01,4.308793626743806
2011-01-01,4.366889625004756
2011-04-01,4.335348797775793
2011-07-01,4.1936133663265105
2011-10-01,4.234735715405233
2012-01-01,4.297636569738695
2012-04-01,4.266240475248063
2012-07-01,4.351989801673956
2012-10-01,4.3621001997573865
2013-01-01,4.477534943890895
2013-04-01,4.528113652912509
2013-07-01,4.614635164025986
2013-10-01,4.671719941677589
2014-01-01,4.7649607175083135
2014-04-01,4.803164287735005
2014-07-01,4.763753924067924
2014-10-01,4.822306500546364
2015-01-01,4.87249313243276
2015-04-01,4.863265506857193
2015-07-01,4.777858163186232
2015-10-01,4.849121978317819
2016-01-01,4.88604390396964
2016-04-01,4.931367814643478
2016-07-01,4.980540569266157
2016-10-01,4.967108411436538
2017-01-01,5.041454176236992
2017-04-01,5.112597417422605
2017-07-01,5.13186164647168
2017-10-01,5.175853696904461
2018-01-01,5.1556537250831385
2018-04-01,5.152391205987373
2018-07-01,5.19830311754612
2018-10-01,4.957660931681036
2019-01-01,5.154164014096517
2019-04-01,5.216398841794943
2019-07-01,5.161338877886076
2019-10-01,5.242525800022861
2020-01-01,5.019039697878346
2020-04-01,5.846347515426045
2020-07-01,5.607185203652138
2020-10-01,5.888053783284044
2021-01-01,5.976154620309056
2021-04-01,6.102141954446465
2021-07-01,6.11298590048754
2021-10-01,6.083102655218769
2022-01-01,6.000296595501694
2022-04-01,5.634539796955881
2022-07-01,5.399218518787696
2022-10-01,5.343948074926244
2023-01-01,5.385606888838786
2023-04-01,5.540176890871897
2023-07-01,5.396461598960549
2023-10-01,5.469104217752578
2024-01-01,5.594585261494636
2024-04-01,5.609991788721801
2024-07-01,5.677885026428343
2024-10-01,5.63728818927861
2025-01-01,5.591209645214191
2025-04-01,5.721368575966953
2025-07-01,5.78916962602227
2025-10-01,5.793375407306019
2026-01-01,5.737651974028681
2026-04-01,6.015118863324451