date,value
1947-10-01,0.574432616604747
1948-10-01,0.5917407959595672
1949-10-01,0.6619036533679197
1950-10-01,0.6190595258560065
1951-10-01,0.6150913307391248
1952-01-01,0.6117058529264632
1952-04-01,0.633484751959671
1952-07-01,0.619916725817988
1952-10-01,0.6206106950411227
1953-01-01,0.6190422186710655
1953-04-01,0.6240092508213166
1953-07-01,0.644585104724021
1953-10-01,0.645430992046014
1954-01-01,0.6467996211187377
1954-04-01,0.6503608972316969
1954-07-01,0.6584338458705461
1954-10-01,0.6559311942441725
1955-01-01,0.6375725356050869
1955-04-01,0.6385351527286185
1955-07-01,0.64073115910195
1955-10-01,0.6393322229645018
1956-01-01,0.6480377308719125
1956-04-01,0.6511804668056771
1956-07-01,0.6517062618713583
1956-10-01,0.6417844647669845
1957-01-01,0.6393878823872502
1957-04-01,0.6461056088130925
1957-07-01,0.6450040668209973
1957-10-01,0.652372047575727
1958-01-01,0.6533986396885828
1958-04-01,0.6540537906427842
1958-07-01,0.6489612856881161
1958-10-01,0.6430983575382091
1959-01-01,0.6233554758685557
1959-04-01,0.6205379094733982
1959-07-01,0.6273022318554609
1959-10-01,0.6310026485054862
1960-01-01,0.6320856245669384
1960-04-01,0.6362682043320765
1960-07-01,0.636124368589673
1960-10-01,0.6396166583672254
1961-01-01,0.6253793452693306
1961-04-01,0.6255712858544312
1961-07-01,0.6214944051410694
1961-10-01,0.6149149518094701
1962-01-01,0.6088166420600223
1962-04-01,0.6027573180359981
1962-07-01,0.5936173601498783
1962-10-01,0.5958956686483309
1963-01-01,0.5923911644725836
1963-04-01,0.5783276591420116
1963-07-01,0.572059015213114
1963-10-01,0.5629616263315482
1964-01-01,0.5450224089384941
1964-04-01,0.5476517444310524
1964-07-01,0.5369528243676945
1964-10-01,0.5413519493947533
1965-01-01,0.5287674668078407
1965-04-01,0.5187861806020617
1965-07-01,0.5051239585599268
1965-10-01,0.5002791967942248
1966-01-01,0.4785129201466822
1966-04-01,0.5009882220822603
1966-07-01,0.4894355800975553
1966-10-01,0.49950318131961763
1967-01-01,0.4945544143952048
1967-04-01,0.49726084032306894
1967-07-01,0.49388315055019866
1967-10-01,0.4988603862547494
1968-01-01,0.5023196944755094
1968-04-01,0.5009033075612408
1968-07-01,0.4989256698130571
1968-10-01,0.5219156431102342
1969-01-01,0.5283312712604081
1969-04-01,0.5296792927791322
1969-07-01,0.5228000031069289
1969-10-01,0.5334042288808811
1970-01-01,0.5312985159817352
1970-04-01,0.5458568919077176
1970-07-01,0.5309656289391277
1970-10-01,0.540556380258091
1971-01-01,0.534545031696084
1971-04-01,0.5383547628540368
1971-07-01,0.5397584223151549
1971-10-01,0.54421795568669
1972-01-01,0.5517276405422031
1972-04-01,0.5426443635306929
1972-07-01,0.5518857617510456
1972-10-01,0.5681915322702016
1973-01-01,0.5615895578189316
1973-04-01,0.5679654739027942
1973-07-01,0.5891620950204974
1973-10-01,0.5887681883425264
1974-01-01,0.5666583289129827
1974-04-01,0.5388489048766844
1974-07-01,0.5238361411925185
1974-10-01,0.5262318252599427
1975-01-01,0.5546186041101011
1975-04-01,0.5699986621085533
1975-07-01,0.542889894842732
1975-10-01,0.5418062231848572
1976-01-01,0.5352369997698417
1976-04-01,0.5539822234890938
1976-07-01,0.5516093329757156
1976-10-01,0.5546807508557479
1977-01-01,0.5625389712005342
1977-04-01,0.5771374122103654
1977-07-01,0.5803434832542119
1977-10-01,0.5931833828496444
1978-01-01,0.6047612994606766
1978-04-01,0.6003757881278915
1978-07-01,0.6054525724482924
1978-10-01,0.6064864476418368
1979-01-01,0.6297956550476725
1979-04-01,0.6463918723301947
1979-07-01,0.6490818405549631
1979-10-01,0.6522111999671059
1980-01-01,0.6642196941618915
1980-04-01,0.683145346027243
1980-07-01,0.6989969833533054
1980-10-01,0.6754635734638462
1981-01-01,0.6517441551549418
1981-04-01,0.6896663812413598
1981-07-01,0.6935882223228852
1981-10-01,0.6994289229088599
1982-01-01,0.7243727059996299
1982-04-01,0.7152770191346145
1982-07-01,0.7105983919541862
1982-10-01,0.7101115894762797
1983-01-01,0.712371952313186
1983-04-01,0.6969904840887347
1983-07-01,0.6795707120744209
1983-10-01,0.6647930037267709
1984-01-01,0.6835962348524355
1984-04-01,0.6924270020882377
1984-07-01,0.7041853461467833
1984-10-01,0.7148821359554215
1985-01-01,0.7185341102291919
1985-04-01,0.7366878336962068
1985-07-01,0.7480010932865685
1985-10-01,0.7650103710677587
1986-01-01,0.7714336228846552
1986-04-01,0.7857944620204429
1986-07-01,0.7928531758683187
1986-10-01,0.7989407481535125
1987-01-01,0.8103239283073241
1987-04-01,0.8116510894352248
1987-07-01,0.8167751207633039
1987-10-01,0.8101095967766735
1988-01-01,0.8181804921854735
1988-04-01,0.8227588402084302
1988-07-01,0.8213107166890504
1988-10-01,0.8134384070847923
1989-01-01,0.8115825929239685
1989-04-01,0.8103739837572204
1989-07-01,0.8220804110008754
1989-10-01,0.8236540445434911
1990-01-01,0.7964333617529651
1990-04-01,0.7843063824532368
1990-07-01,0.7813530113134975
1990-10-01,0.7731334598890575
1991-01-01,0.7637680280515339
1991-04-01,0.7518801631242877
1991-07-01,0.7488617754256932
1991-10-01,0.74414929108921
1992-01-01,0.7371469135651134
1992-04-01,0.7282383854886975
1992-07-01,0.7261108076412279
1992-10-01,0.7201866302598655
1993-01-01,0.7155246803643502
1993-04-01,0.7155199951123075
1993-07-01,0.7173863260883527
1993-10-01,0.7139227327852852
1994-01-01,0.7100524308945969
1994-04-01,0.7058332692832318
1994-07-01,0.7055819235241763
1994-10-01,0.6968824007871997
1995-01-01,0.6942326996476738
1995-04-01,0.6950378690296276
1995-07-01,0.6667599446839665
1995-10-01,0.664985244293212
1996-01-01,0.6623469778360922
1996-04-01,0.6558679122203355
1996-07-01,0.6540841389338722
1996-10-01,0.6477606945761571
1997-01-01,0.6445337037101254
1997-04-01,0.6421647351600719
1997-07-01,0.6353540872299942
1997-10-01,0.6369952362031677
1998-01-01,0.6426605597711832
1998-04-01,0.6531233656781571
1998-07-01,0.6592519518211462
1998-10-01,0.6610958629075496
1999-01-01,0.665311471424555
1999-04-01,0.6760078772145481
1999-07-01,0.6825814272172788
1999-10-01,0.6840026670251791
2000-01-01,0.7102837291754127
2000-04-01,0.7261598677559497
2000-07-01,0.749251247678245
2000-10-01,0.7693623952446514
2001-01-01,0.8259712703568814
2001-04-01,0.8373757901688839
2001-07-01,0.8591931323020715
2001-10-01,0.8760092547557728
2002-01-01,0.8883025919228451
2002-04-01,0.8962228104626792
2002-07-01,0.9040252038412095
2002-10-01,0.9130359511285743
2003-01-01,0.922132812320316
2003-04-01,0.9235195000055689
2003-07-01,0.9182372211048834
2003-10-01,0.9214132168966399
2004-01-01,0.9531894593903927
2004-04-01,0.9662762124246098
2004-07-01,0.9909207466339522
2004-10-01,1.00796178623595
2005-01-01,1.0233558643551965
2005-04-01,1.0432481527017357
2005-07-01,1.062963824168687
2005-10-01,1.0798991819698947
2006-01-01,1.0418066998255775
2006-04-01,1.0355534011021545
2006-07-01,1.0308876130590299
2006-10-01,1.0136075489545258
2007-01-01,0.969913864655231
2007-04-01,0.9357942136421665
2007-07-01,0.9007418712717015
2007-10-01,0.8626184144160356
2008-01-01,0.8122671698804981
2008-04-01,0.7671809085895109
2008-07-01,0.7304777320946192
2008-10-01,0.7125641480074663
2009-01-01,0.6841447610135527
2009-04-01,0.6590981470577355
2009-07-01,0.6383624698436876
2009-10-01,0.6174511128709914
2010-01-01,0.6143284516150443
2010-04-01,0.6037403523439251
2010-07-01,0.5928438110961406
2010-10-01,0.5801989669925957
2011-01-01,0.5595228541307634
2011-04-01,0.5485376575305387
2011-07-01,0.5429064883739954
2011-10-01,0.5290143911925692
2012-01-01,0.5136484013590307
2012-04-01,0.5241080846282635
2012-07-01,0.5379783046594264
2012-10-01,0.5483261419821259
2013-01-01,0.5680277296227235
2013-04-01,0.5963374172760838
2013-07-01,0.6176724703869413
2013-10-01,0.6298975123282495
2014-01-01,0.6492483488235488
2014-04-01,0.6620712791294783
2014-07-01,0.6727504275950634
2014-10-01,0.6828523366829724
2015-01-01,0.6976997130516414
2015-04-01,0.711678595326947
2015-07-01,0.7285270877693091
2015-10-01,0.741807180494509
2016-01-01,0.7535658258075315
2016-04-01,0.7718900183425323
2016-07-01,0.7877226151412727
2016-10-01,0.7981005039503903
2017-01-01,0.809459077045515
2017-04-01,0.825915317236908
2017-07-01,0.8368041388146152
2017-10-01,0.8390617938095596
2018-01-01,0.855914289620122
2018-04-01,0.8604963667304928
2018-07-01,0.8680875707314822
2018-10-01,0.8391819299740266
2019-01-01,0.8273391879345953
2019-04-01,0.8602840142821239
2019-07-01,0.845064764650976
2019-10-01,0.826910662489684
2020-01-01,0.8754695249989908
2020-04-01,0.9787336500905813
2020-07-01,0.9472338305757482
2020-10-01,0.9722592673752534
2021-01-01,1.0120427753786119
2021-04-01,1.0842225174990456
2021-07-01,1.1214424328105137
2021-10-01,1.1003495521727868
2022-01-01,1.1815774921860625
2022-04-01,1.2315897115787937
2022-07-01,1.1513980017902916
2022-10-01,1.0916175872391982
2023-01-01,1.0803701162081873
2023-04-01,1.1560229062874254
2023-07-01,1.1472553195492368
2023-10-01,1.1141467843972728
2024-01-01,1.1375631134458144
2024-04-01,1.1759893386110283
2024-07-01,1.1497904712405087
2024-10-01,1.1191916604698926
2025-01-01,1.1269537208679616
2025-04-01,1.1436190666105912
2025-07-01,1.1075674781665577
2025-10-01,1.0829922635257192
2026-01-01,1.0919756722455276
2026-04-01,1.0998589504723608