Month	Percent
1960-01-01	81.9488817891374
1960-02-01	82.6100829610721
1960-03-01	84.7160178685386
1960-04-01	85.9554140127389
1960-05-01	86.3781031190324
1960-06-01	86.0050890585242
1960-07-01	86.2277353689568
1960-08-01	85.5007949125596
1960-09-01	85.3968253968254
1960-10-01	85.9409711202793
1960-11-01	85.1441241685144
1960-12-01	84.0923466160658
1961-01-01	82.4012638230648
1961-02-01	82.6649826334070
1961-03-01	85.0647300284180
1961-04-01	86.1014812480302
1961-05-01	86.2362204724410
1961-06-01	85.6020119459290
1961-07-01	86.0684028867273
1961-08-01	85.6471325603259
1961-09-01	85.5357700718526
1961-10-01	85.4692859370128
1961-11-01	84.9361967009026
1961-12-01	84.0584213797390
1962-01-01	82.2180916976456
1962-02-01	82.5293753865182
1962-03-01	84.2283950617284
1962-04-01	85.4237288135593
1962-05-01	85.8020897357099
1962-06-01	85.5214723926380
1962-07-01	85.0887936313534
1962-08-01	84.8290598290598
1962-09-01	84.7137637028014
1962-10-01	84.5288753799392
1962-11-01	83.8641188959660
1962-12-01	83.1113801452784
1963-01-01	79.7827398913699
1963-02-01	80.8305747818236
1963-03-01	83.1582107475233
1963-04-01	84.0718562874252
1963-05-01	84.5234538392590
1963-06-01	84.3973747016706
1963-07-01	84.2763549731984
1963-08-01	83.7243837243837
1963-09-01	83.7925925925926
1963-10-01	83.9739798935541
1963-11-01	83.0088495575221
1963-12-01	82.1796759941090
1964-01-01	80.5580029368576
1964-02-01	79.7538822150601
1964-03-01	81.8527177089421
1964-04-01	82.9929988331389
1964-05-01	83.4352256186317
1964-06-01	83.2558139534884
1964-07-01	83.0867420945750
1964-08-01	82.4363425925926
1964-09-01	82.5823223570191
1964-10-01	83.0645161290322
1964-11-01	82.0350675481460
1964-12-01	81.0903873744620
1965-01-01	79.5077275329136
1965-02-01	79.5487003713225
1965-03-01	81.3515825491874
1965-04-01	82.3177676537585
1965-05-01	82.8595793064241
1965-06-01	83.0258302583026
1965-07-01	82.5495750708215
1965-08-01	82.4427480916030
1965-09-01	82.3878069432684
1965-10-01	82.2585187271191
1965-11-01	81.7388857625211
1965-12-01	80.8761583824768
1966-01-01	79.5460913421126
1966-02-01	79.9664241745943
1966-03-01	81.5921787709497
1966-04-01	82.3857302118172
1966-05-01	83.2730308934038
1966-06-01	83.1017231795442
1966-07-01	82.7595780122154
1966-08-01	82.1003047935716
1966-09-01	81.8986991419873
1966-10-01	82.3431887261674
1966-11-01	81.3138283190726
1966-12-01	80.4245933278191
1967-01-01	78.9980732177264
1967-02-01	79.4942275975811
1967-03-01	81.3391877058178
1967-04-01	82.0597096685840
1967-05-01	82.9915231063714
1967-06-01	83.0601092896175
1967-07-01	83.3742833742834
1967-08-01	82.6430517711172
1967-09-01	82.0680272108844
1967-10-01	81.6847826086956
1967-11-01	81.7417254476397
1967-12-01	80.9485094850948
1968-01-01	80.2599512591389
1968-02-01	79.8810167658194
1968-03-01	81.7985417229274
1968-04-01	82.7446751145861
1968-05-01	83.0595206032858
1968-06-01	83.4543987086360
1968-07-01	83.2885545405696
1968-08-01	82.8548430372954
1968-09-01	82.7392120075047
1968-10-01	82.9588014981274
1968-11-01	82.3309275594761
1968-12-01	81.2132549438803
1969-01-01	80.3523758675921
1969-02-01	79.9946652440651
1969-03-01	81.5228966986156
1969-04-01	82.6503459286855
1969-05-01	83.1517406324741
1969-06-01	83.2182687201274
1969-07-01	82.9973474801061
1969-08-01	82.4947033898305
1969-09-01	82.4695928080381
1969-10-01	82.1975699947174
1969-11-01	81.5254684613354
1969-12-01	81.2549433166359
1970-01-01	80.5372662628391
1970-02-01	80.0526315789474
1970-03-01	81.8539915966386
1970-04-01	82.7341905011808
1970-05-01	82.5995807127882
1970-06-01	82.6394344069128
1970-07-01	82.9842931937173
1970-08-01	82.3836905384213
1970-09-01	82.2378716744914
1970-10-01	81.9744725188851
1970-11-01	81.5720978656950
1970-12-01	81.3510693792384
1971-01-01	80.9275664408546
1971-02-01	80.9994794377928
1971-03-01	82.3590542998181
1971-04-01	83.1084587441619
1971-05-01	83.4974093264249
1971-06-01	83.1824062095731
1971-07-01	83.0403309203723
1971-08-01	82.5200103279112
1971-09-01	82.2285272117617
1971-10-01	82.0499613700747
1971-11-01	82.0638188368502
1971-12-01	81.8486096807415
1972-01-01	81.0025706940874
1972-02-01	81.1504879301489
1972-03-01	82.1144470105209
1972-04-01	82.9743589743590
1972-05-01	83.0304581520348
1972-06-01	83.1288343558282
1972-07-01	83.1853918336292
1972-08-01	82.6075949367089
1972-09-01	82.4734446130501
1972-10-01	82.2948328267477
1972-11-01	81.5536437246964
1972-12-01	81.3765182186235
1973-01-01	81.0148952284776
1973-02-01	81.2058526740666
1973-03-01	81.8982880161128
1973-04-01	82.7291037260826
1973-05-01	83.0862025634582
1973-06-01	82.9274416269144
1973-07-01	83.2120451693852
1973-08-01	82.6817042606516
1973-09-01	82.4236354531798
1973-10-01	82.6870152614461
1973-11-01	82.2427572427572
1973-12-01	81.4185814185814
1974-01-01	80.7673143996014
1974-02-01	80.8304326205868
1974-03-01	82.2608695652174
1974-04-01	82.6918301465110
1974-05-01	82.7466534457114
1974-06-01	82.7142149579000
1974-07-01	82.4374535546198
1974-08-01	82.2744128553770
1974-09-01	82.1260815822002
1974-10-01	82.2875494071146
1974-11-01	81.8608094768016
1974-12-01	81.2978040957316
1975-01-01	80.3641732283464
1975-02-01	80.3391496682232
1975-03-01	81.2331122574306
1975-04-01	81.6932515337423
1975-05-01	82.1699730590252
1975-06-01	81.7603911980440
1975-07-01	82.0293398533007
1975-08-01	81.7671466927020
1975-09-01	81.7694369973190
1975-10-01	81.9133398247322
1975-11-01	81.8978102189781
1975-12-01	81.9353270119134
1976-01-01	80.7179238418627
1976-02-01	80.6694154741693
1976-03-01	81.4303030303030
1976-04-01	81.6178251392589
1976-05-01	81.8423597678917
1976-06-01	81.8203766296475
1976-07-01	81.7984046410442
1976-08-01	81.5681544028951
1976-09-01	81.2515042117930
1976-10-01	81.2710640346654
1976-11-01	81.3326918450806
1976-12-01	80.8413461538462
1977-01-01	79.8896088312935
1977-02-01	79.8607777244359
1977-03-01	80.7719971229921
1977-04-01	81.0162991371045
1977-05-01	81.1902485659656
1977-06-01	81.3620071684588
1977-07-01	81.4442850310856
1977-08-01	81.1784351145038
1977-09-01	80.8763991426530
1977-10-01	80.5568776772965
1977-11-01	80.7609988109394
1977-12-01	80.4471931493816
1978-01-01	79.4481446241674
1978-02-01	79.7766159695818
1978-03-01	80.4322013773450
1978-04-01	81.0156620787850
1978-05-01	81.6524621212121
1978-06-01	81.4481779460483
1978-07-01	81.1168954093706
1978-08-01	80.7419659735350
1978-09-01	80.5667060212515
1978-10-01	80.4055647253006
1978-11-01	80.5653710247350
1978-12-01	80.1131008482564
1979-01-01	79.1627469426152
1979-02-01	79.1911591817541
1979-03-01	79.8967863007272
1979-04-01	80.6663538244956
1979-05-01	81.1621368322399
1979-06-01	81.5308988764045
1979-07-01	81.5499882931398
1979-08-01	81.0102899906455
1979-09-01	80.2428771602055
1979-10-01	80.3733955659276
1979-11-01	80.3633822501747
1979-12-01	80.0186306474150
1980-01-01	79.0183763665969
1980-02-01	79.0183763665969
1980-03-01	79.8885276358570
1980-04-01	80.4962894248608
1980-05-01	80.4629629629630
1980-06-01	80.9160305343512
1980-07-01	80.9534829900486
1980-08-01	80.3373382624769
1980-09-01	80.2167396818077
1980-10-01	80.3867403314917
1980-11-01	80.1932367149758
1980-12-01	79.7882136279926
1981-01-01	79.2556857339766
1981-02-01	79.4989657549988
1981-03-01	80.3305026394308
1981-04-01	80.7665825109020
1981-05-01	80.6052269601100
1981-06-01	81.0265811182401
1981-07-01	80.7331042382589
1981-08-01	80.3432494279176
1981-09-01	80.1600000000000
1981-10-01	80.0091386794608
1981-11-01	79.6347031963470
1981-12-01	79.1457286432161
1982-01-01	78.4997720018240
1982-02-01	78.7927107061504
1982-03-01	79.7497155858931
1982-04-01	80.6825938566553
1982-05-01	80.6766575840145
1982-06-01	80.4126048515076
1982-07-01	80.2040816326531
1982-08-01	80.0000000000000
1982-09-01	79.8418079096045
1982-10-01	79.8825920072251
1982-11-01	79.7879539815024
1982-12-01	79.5623731107602
1983-01-01	79.1535344439442
1983-02-01	79.0195637508433
1983-03-01	79.5096716149348
1983-04-01	80.3146067415730
1983-05-01	80.7001795332136
1983-06-01	80.8243727598566
1983-07-01	80.3583426651736
1983-08-01	79.9553072625698
1983-09-01	79.7767857142857
1983-10-01	79.7233995092572
1983-11-01	79.5631825273011
1983-12-01	78.9661319073084
1984-01-01	78.3789801825874
1984-02-01	78.5221455597596
1984-03-01	78.9461983103602
1984-04-01	79.7159343098091
1984-05-01	79.9334811529934
1984-06-01	79.9645782599070
1984-07-01	79.5484727755644
1984-08-01	79.4741493592576
1984-09-01	79.5810363836825
1984-10-01	79.2594225258982
1984-11-01	79.1675842325479
1984-12-01	78.5682819383260
1985-01-01	78.0219780219780
1985-02-01	77.8168240720404
1985-03-01	78.3973655323820
1985-04-01	79.1712343784258
1985-05-01	79.2778993435449
1985-06-01	79.1684901531729
1985-07-01	79.0946862016182
1985-08-01	78.7024901703801
1985-09-01	78.7581699346405
1985-10-01	78.6507072905332
1985-11-01	78.4130434782609
1985-12-01	77.8695652173913
1986-01-01	77.4907749077491
1986-02-01	77.1416178703101
1986-03-01	77.7657501623728
1986-04-01	78.8265858410911
1986-05-01	78.9473684210526
1986-06-01	78.7537862397231
1986-07-01	78.9337362400173
1986-08-01	78.7852681455955
1986-09-01	78.4823731728289
1986-10-01	78.3505154639175
1986-11-01	78.0377844568484
1986-12-01	77.5821344213013
1987-01-01	76.9395627946850
1987-02-01	76.7023554603854
1987-03-01	77.4028193079880
1987-04-01	78.1690140845070
1987-05-01	78.3397353819889
1987-06-01	78.4998934583422
1987-07-01	78.3450329717082
1987-08-01	78.3559898045879
1987-09-01	78.0254777070064
1987-10-01	77.9474130619169
1987-11-01	77.6766821836648
1987-12-01	77.2111722386796
1988-01-01	76.5512874630646
1988-02-01	76.4184771145328
1988-03-01	77.1193589202868
1988-04-01	77.9953674457781
1988-05-01	78.1512605042017
1988-06-01	78.2891971416562
1988-07-01	78.2745591939546
1988-08-01	78.0293501048218
1988-09-01	77.4220548231848
1988-10-01	77.3923944839114
1988-11-01	77.4765380604797
1988-12-01	77.0868113522538
1989-01-01	76.1467889908257
1989-02-01	76.2708333333333
1989-03-01	76.8718801996672
1989-04-01	77.8332293616136
1989-05-01	78.0614362806144
1989-06-01	78.0472636815920
1989-07-01	78.1915994206497
1989-08-01	77.8053316800992
1989-09-01	77.3880750979988
1989-10-01	77.4366371316711
1989-11-01	77.5190603750258
1989-12-01	77.2970745776679
1990-01-01	76.2492288710672
1990-02-01	76.3060468942822
1990-03-01	76.9878775426341
1990-04-01	77.7183967112025
1990-05-01	78.2671036460467
1990-06-01	78.1486790907229
1990-07-01	78.1736281736282
1990-08-01	77.6165167620605
1990-09-01	78.0134611462370
1990-10-01	78.2803585982070
1990-11-01	77.7709861450693
1990-12-01	77.5061124694376
1991-01-01	76.7399267399268
1991-02-01	76.6992266992267
1991-03-01	77.8364116094987
1991-04-01	78.1788683836950
1991-05-01	78.4933171324423
1991-06-01	78.6321327397815
1991-07-01	78.4472300849171
1991-08-01	78.2152230971129
1991-09-01	78.3511388832897
1991-10-01	78.1583719524481
1991-11-01	78.0733575171302
1991-12-01	77.8696792414767
1992-01-01	77.2919605077574
1992-02-01	77.5407526665325
1992-03-01	77.8336012861736
1992-04-01	78.3946891973446
1992-05-01	78.6230429546367
1992-06-01	78.3079390537289
1992-07-01	78.5256410256410
1992-08-01	78.3913565426170
1992-09-01	78.1774580335731
1992-10-01	78.4258889332801
1992-11-01	78.3719074221868
1992-12-01	77.9952076677316
1993-01-01	77.0089730807577
1993-02-01	77.2863120143455
1993-03-01	77.7114427860696
1993-04-01	78.2799124029464
1993-05-01	78.7119856887299
1993-06-01	78.5771065182830
1993-07-01	78.6735504368546
1993-08-01	78.3660519532024
1993-09-01	78.2686212361331
1993-10-01	78.5218941945710
1993-11-01	78.3297051256679
1993-12-01	77.9030662710188
1994-01-01	76.9762845849802
1994-02-01	77.0553359683794
1994-03-01	77.4639541773652
1994-04-01	78.0675755779490
1994-05-01	78.5207100591716
1994-06-01	78.3517350157729
1994-07-01	78.3602680331100
1994-08-01	78.4124482962379
1994-09-01	78.2258064516129
1994-10-01	77.9591034211561
1994-11-01	77.6729559748428
1994-12-01	77.4808410296718
1995-01-01	76.5652600588812
1995-02-01	76.5121759622938
1995-03-01	77.2263632797175
1995-04-01	77.7145101119183
1995-05-01	77.9215686274510
1995-06-01	78.1978452497551
1995-07-01	78.4636488340192
1995-08-01	78.2370225269344
1995-09-01	78.3603991391117
1995-10-01	78.1274433150899
1995-11-01	77.6518851338152
1995-12-01	77.3109243697479
1996-01-01	76.6978922716628
1996-02-01	76.5728800312622
1996-03-01	77.1439734323110
1996-04-01	77.9144698301113
1996-05-01	78.1091617933723
1996-06-01	78.3752191700760
1996-07-01	78.5032157474176
1996-08-01	78.4225900681597
1996-09-01	78.2684824902724
1996-10-01	78.0867198133385
1996-11-01	77.7172856309547
1996-12-01	77.7129521586931
1997-01-01	77.1600154978690
1997-02-01	76.9767441860465
1997-03-01	77.6809910956252
1997-04-01	78.1371030209140
1997-05-01	78.6308257590408
1997-06-01	78.6707882534776
1997-07-01	78.4306146115191
1997-08-01	78.0591532959598
1997-09-01	77.8120779471349
1997-10-01	77.7863478596220
1997-11-01	77.4050510892616
1997-12-01	77.3148148148148
1998-01-01	76.7392561187126
1998-02-01	76.4637904468413
1998-03-01	77.1346153846154
1998-04-01	77.5745909528393
1998-05-01	78.0919407578380
1998-06-01	78.1923076923077
1998-07-01	77.7713736791546
1998-08-01	77.5729646697389
1998-09-01	77.3704414587332
1998-10-01	77.3747841105354
1998-11-01	77.1516197048112
1998-12-01	77.0485511418154
1999-01-01	76.7152165580682
1999-02-01	76.3036809815951
1999-03-01	76.6589950134254
1999-04-01	77.0425776754891
1999-05-01	77.6010730024909
1999-06-01	77.6202337612569
1999-07-01	77.2309459977020
1999-08-01	77.1996939556236
1999-09-01	77.2848948374761
1999-10-01	77.2553516819572
1999-11-01	76.9054441260745
1999-12-01	76.6615737203972
2000-01-01	76.0213822069492
2000-02-01	75.7633587786260
2000-03-01	76.2449914138523
2000-04-01	76.4840618438633
2000-05-01	76.8834636658402
2000-06-01	76.7308792675949
2000-07-01	76.5210757200076
2000-08-01	76.6590389016018
2000-09-01	76.7472862311940
2000-10-01	76.9318614389037
2000-11-01	76.8162799543553
2000-12-01	76.2737642585551
2001-01-01	75.3422053231939
2001-02-01	75.2569470879330
2001-03-01	75.8312749382481
2001-04-01	76.1832351264018
2001-05-01	76.3197873148500
2001-06-01	76.0015188912094
2001-07-01	75.9491268033409
2001-08-01	76.1669829222011
2001-09-01	75.6920743268866
2001-10-01	75.5589238347859
2001-11-01	75.6342294585384
2001-12-01	75.2130278356372
2002-01-01	74.3289224952741
2002-02-01	74.2332449829610
2002-03-01	74.9621498864497
2002-04-01	75.1610458507010
2002-05-01	75.0662126371548
2002-06-01	75.0661625708885
2002-07-01	75.1181697863490
2002-08-01	75.2976752976753
2002-09-01	74.8584371460929
2002-10-01	74.8443102472164
2002-11-01	74.3860974688326
2002-12-01	74.1587901701323
2003-01-01	73.6016628873772
2003-02-01	73.4832734832735
2003-03-01	74.2124127523109
2003-04-01	74.5420207743154
2003-05-01	74.8726655348048
2003-06-01	74.8681235870384
2003-07-01	74.4251790425933
2003-08-01	74.3261074458058
2003-09-01	74.2135995479375
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2016-02-01	69.9626865671642
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2017-03-01	69.9123297892184
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2017-06-01	70.9009513150532
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2017-10-01	70.7976146105106
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2018-01-01	70.4609068856130
2018-02-01	70.5618816501774
2018-03-01	70.8364451082898
2018-04-01	71.3538748832866
2018-05-01	71.6392830470500
2018-06-01	71.5165081141578
2018-07-01	71.1086226203808
2018-08-01	71.3085682284861
2018-09-01	71.4552238805970