date,value
1947-01-01,0.14744781299863466
1947-04-01,0.14028247576920577
1947-07-01,0.13987619448284153
1947-10-01,0.16650946120233306
1948-01-01,0.17762340917130146
1948-04-01,0.18467386000506297
1948-07-01,0.18809725067694377
1948-10-01,0.18309638115891372
1949-01-01,0.15685333449682584
1949-04-01,0.13355764305272508
1949-07-01,0.1449270582544551
1949-10-01,0.1384488613479069
1950-01-01,0.16646844331761793
1950-04-01,0.18007596863452752
1950-07-01,0.19029832583164855
1950-10-01,0.21391489162199753
1951-01-01,0.19220833333333331
1951-04-01,0.19582957947048737
1951-07-01,0.17639056874937747
1951-10-01,0.16026818051648334
1952-01-01,0.16155855705630592
1952-04-01,0.1468132842146082
1952-07-01,0.1556155680838507
1952-10-01,0.1594933983172799
1953-01-01,0.15893345017784422
1953-04-01,0.15855815841265708
1953-07-01,0.157054076094598
1953-10-01,0.14624452677669247
1954-01-01,0.144589912935162
1954-04-01,0.1436052429160807
1954-07-01,0.15082251480833564
1954-10-01,0.15545087483176315
1955-01-01,0.16631927044372302
1955-04-01,0.17243767970165969
1955-07-01,0.1737409377970857
1955-10-01,0.1804700154658516
1956-01-01,0.1780641552168752
1956-04-01,0.17268671106029013
1956-07-01,0.17346755586880058
1956-10-01,0.1675378912095
1957-01-01,0.1654565231736625
1957-04-01,0.16504846141623855
1957-07-01,0.16546539031053828
1957-10-01,0.14961125711782744
1958-01-01,0.14272575608504084
1958-04-01,0.13785600176279403
1958-07-01,0.14819457394497376
1958-10-01,0.16014452863048115
1959-01-01,0.1629651402033978
1959-04-01,0.17101403799461593
1959-07-01,0.15923921117489534
1959-10-01,0.16368520620507
1960-01-01,0.17778744231988322
1960-04-01,0.16096695497893102
1960-07-01,0.15831445517261603
1960-10-01,0.14062092162673986
1961-01-01,0.1438080944115607
1961-04-01,0.15139727654825444
1961-07-01,0.16015988331125455
1961-10-01,0.1600569743649804
1962-01-01,0.16510413071767788
1962-04-01,0.16107840883727595
1962-07-01,0.16117512031486286
1962-10-01,0.15510550728424904
1963-01-01,0.16035626504008543
1963-04-01,0.16141274660501279
1963-07-01,0.16232907746832928
1963-10-01,0.16391309267851079
1964-01-01,0.16493038449020786
1964-04-01,0.16284401642025478
1964-07-01,0.1627542696786705
1964-10-01,0.16489440270521813
1965-01-01,0.17629390211621784
1965-04-01,0.17399831003121102
1965-07-01,0.17514076039304813
1965-10-01,0.17328598432092993
1966-01-01,0.1812163361123189
1966-04-01,0.1782663193292761
1966-07-01,0.17470395467267255
1966-10-01,0.17503258122505405
1967-01-01,0.1691732707866899
1967-04-01,0.1619525950460728
1967-07-01,0.16508270026686456
1967-10-01,0.16751357722996146
1968-01-01,0.16746225754271835
1968-04-01,0.17011186458092523
1968-07-01,0.16373465148686664
1968-10-01,0.16606923339152713
1969-01-01,0.17354432584309254
1969-04-01,0.17117698360785713
1969-07-01,0.17239959765271526
1969-10-01,0.1652685024375161
1970-01-01,0.15992484779299848
1970-04-01,0.16063239255182107
1970-07-01,0.16012389750464753
1970-10-01,0.1531809430024398
1971-01-01,0.16693300304099173
1971-04-01,0.17065981936760502
1971-07-01,0.17157365147430317
1971-10-01,0.166690330228506
1972-01-01,0.17305903012248408
1972-04-01,0.179093139519366
1972-07-01,0.18061067779563386
1972-10-01,0.18038549059977244
1973-01-01,0.18462057800782583
1973-04-01,0.18968701176260905
1973-07-01,0.18435485738277266
1973-10-01,0.19024594777851764
1974-01-01,0.1799620308085587
1974-04-01,0.18129467156757662
1974-07-01,0.17372338666150433
1974-10-01,0.17587215935196998
1975-01-01,0.1511686042338545
1975-04-01,0.14727763305814742
1975-07-01,0.15509936718484987
1975-10-01,0.15678915855152964
1976-01-01,0.1673387395790247
1976-04-01,0.17399850566745054
1976-07-01,0.17402433426377562
1976-10-01,0.1745617087143335
1977-01-01,0.18118490552375283
1977-04-01,0.18955265043345787
1977-07-01,0.19548703240494453
1977-10-01,0.1951230669001557
1978-01-01,0.19738827652581303
1978-04-01,0.20182593058169962
1978-07-01,0.20557707908760267
1978-10-01,0.20822188910631587
1979-01-01,0.20810849319839625
1979-04-01,0.20812103207451857
1979-07-01,0.20453897093416654
1979-10-01,0.20113749379103288
1980-01-01,0.19877899895406262
1980-04-01,0.18563770308491745
1980-07-01,0.17331487707085952
1980-10-01,0.18471327125893092
1981-01-01,0.19825229194233668
1981-04-01,0.19283378002183058
1981-07-01,0.2000537322935685
1981-10-01,0.19610810474704782
1982-01-01,0.17967737856801236
1982-04-01,0.17815906016016939
1982-07-01,0.17614298335096878
1982-10-01,0.16142017733113379
1983-01-01,0.16281392394166774
1983-04-01,0.17150295290551598
1983-07-01,0.17680600480486308
1983-10-01,0.18934167758977902
1984-01-01,0.20236977278205467
1984-04-01,0.20423328904796262
1984-07-01,0.20538703556344493
1984-10-01,0.20048952031685277
1985-01-01,0.19144984312679783
1985-04-01,0.19256385557990233
1985-07-01,0.18741726549333645
1985-10-01,0.19341287560524145
1986-01-01,0.19154332377824324
1986-04-01,0.18815688155341515
1986-07-01,0.18140018304266214
1986-10-01,0.18079227898670286
1987-01-01,0.18449115192297758
1987-04-01,0.18197230221216107
1987-07-01,0.17943620247903852
1987-10-01,0.1889896433581989
1988-01-01,0.1790858229989837
1988-04-01,0.18006137144328094
1988-07-01,0.17831505242923543
1988-10-01,0.17830287902103692
1989-01-01,0.18244254074345706
1989-04-01,0.17836144309548232
1989-07-01,0.17495981381351328
1989-10-01,0.17326743268113007
1990-01-01,0.17212488767945106
1990-04-01,0.17025423370494233
1990-07-01,0.16637833750837058
1990-10-01,0.1577843677645617
1991-01-01,0.15319664142466055
1991-04-01,0.15122602728770454
1991-07-01,0.1526725134335073
1991-10-01,0.15624259722182315
1992-01-01,0.15036958389163022
1992-04-01,0.15656329864036125
1992-07-01,0.1559643659520903
1992-10-01,0.1583585087002266
1993-01-01,0.1610573747458748
1993-04-01,0.16074148997369486
1993-07-01,0.1592322573726791
1993-10-01,0.164411901328507
1994-01-01,0.16887770790364676
1994-04-01,0.17454947480526586
1994-07-01,0.17074562734660334
1994-10-01,0.17538772479346204
1995-01-01,0.17648697092068652
1995-04-01,0.17200745495612252
1995-07-01,0.16962472952086555
1995-10-01,0.1717748764696846
1996-01-01,0.1722511929895375
1996-04-01,0.176573665104745
1996-07-01,0.18131546221761347
1996-10-01,0.17919721987449772
1997-01-01,0.1820479261669888
1997-04-01,0.18667104911768934
1997-07-01,0.1876121675347632
1997-10-01,0.18760511604788874
1998-01-01,0.19312331387427706
1998-04-01,0.18905573085562846
1998-07-01,0.19094446643863125
1998-10-01,0.19334686250503147
1999-01-01,0.19688967391800954
1999-04-01,0.19402690051972402
1999-07-01,0.19549996046094892
1999-10-01,0.19727915755781542
2000-01-01,0.19502250459624848
2000-04-01,0.2025607647359608
2000-07-01,0.19964489809961364
2000-10-01,0.1980910033822217
2001-01-01,0.18827980013048423
2001-04-01,0.18615275025945843
2001-07-01,0.18351626058452428
2001-10-01,0.17354693252123615
2002-01-01,0.1773690360272639
2002-04-01,0.17756960760361004
2002-07-01,0.17600054260545298
2002-10-01,0.17561296081619804
2003-01-01,0.17542494811004955
2003-04-01,0.17435046389185457
2003-07-01,0.17674094417329658
2003-10-01,0.18104558574014074
2004-01-01,0.18065681845191245
2004-04-01,0.18679448171213708
2004-07-01,0.18839611234404796
2004-10-01,0.1907911846959747
2005-01-01,0.19472172864303347
2005-04-01,0.1916381585952609
2005-07-01,0.19258502209829653
2005-10-01,0.1985306589421777
2006-01-01,0.19925789534059454
2006-04-01,0.19698745563286638
2006-07-01,0.19534125997427
2006-10-01,0.19056195493306058
2007-01-01,0.18741983747350016
2007-04-01,0.18741852740457943
2007-07-01,0.18442374501660486
2007-10-01,0.17958203086933125
2008-01-01,0.17432389594342326
2008-04-01,0.17090314139911733
2008-07-01,0.1676785131672269
2008-10-01,0.15798753974563204
2009-01-01,0.13962245741811566
2009-04-01,0.12958900055600228
2009-07-01,0.12744349355195786
2009-10-01,0.13641908618166274
2010-01-01,0.13804367335134488
2010-04-01,0.14344241092220908
2010-07-01,0.14770526008236773
2010-10-01,0.14621273075743818
2011-01-01,0.14369732418726885
2011-04-01,0.1476680855500346
2011-07-01,0.14844628724513795
2011-10-01,0.15806426343616778
2012-01-01,0.15979719711577806
2012-04-01,0.16269786448729462
2012-07-01,0.1620216524472104
2012-10-01,0.1606708087046987
2013-01-01,0.1649680935265692
2013-04-01,0.16619606786832702
2013-07-01,0.17060172451807076
2013-10-01,0.17067751030289113
2014-01-01,0.16995054814766916
2014-04-01,0.17462080674906788
2014-07-01,0.17647757600048708
2014-10-01,0.17708809792542785
2015-01-01,0.1817077382830343
2015-04-01,0.18004063942987508
2015-07-01,0.17953087406515053
2015-10-01,0.17775181166269607
2016-01-01,0.17512300190225236
2016-04-01,0.1734946933207893
2016-07-01,0.17263713131871095
2016-10-01,0.1760639777752854
2017-01-01,0.17443393918823177
2017-04-01,0.1766053319668456
2017-07-01,0.17773899275336744
2017-10-01,0.17839149081942446
2018-01-01,0.1793356861159769
2018-04-01,0.17796718629378522
2018-07-01,0.1821597761017139
2018-10-01,0.18175983239591303
2019-01-01,0.1824006707213096
2019-04-01,0.18244729936127493
2019-07-01,0.18140479715336774
2019-10-01,0.17692662230077785
2020-01-01,0.17505670251964506
2020-04-01,0.16385105317885182
2020-07-01,0.18019375485298234
2020-10-01,0.1840279601361153
2021-01-01,0.17889947653894686
2021-04-01,0.17278353808215544
2021-07-01,0.17727158024778195
2021-10-01,0.18632077504945982
2022-01-01,0.1899753966667923
2022-04-01,0.18551225459716755
2022-07-01,0.18325583680717805
2022-10-01,0.18494451189557437
2023-01-01,0.17922688073197143
2023-04-01,0.18007298269316852
2023-07-01,0.18145190256339502
2023-10-01,0.18173476634209876
2024-01-01,0.17990715235417984
2024-04-01,0.18193793143931625
2024-07-01,0.18203018128630918
2024-10-01,0.17852843236677915
2025-01-01,0.18675851524356424
2025-04-01,0.17845203882942356
2025-07-01,0.17740723342636053
2025-10-01,0.17787273449112773
2026-01-01,0.17918870752504662
2026-04-01,0.1788368281452924