Month	Percent
1968-01-01	49.7884344146686
1968-02-01	50.3098591549296
1968-03-01	47.1714044469462
1968-04-01	44.4631815626757
1968-05-01	42.9213483146067
1968-06-01	43.2978126752664
1968-07-01	44.0459512468479
1968-08-01	44.2609182530795
1968-09-01	44.9105145413870
1968-10-01	45.0865438302624
1968-11-01	45.8856345885635
1968-12-01	48.4518828451883
1969-01-01	50.4037872458925
1969-02-01	50.1252435290843
1969-03-01	47.3040578098944
1969-04-01	45.2500000000000
1969-05-01	43.8089950027762
1969-06-01	44.0654464780921
1969-07-01	44.8725055432372
1969-08-01	45.3237410071942
1969-09-01	44.8008849557522
1969-10-01	45.2085059375863
1969-11-01	46.6887417218543
1969-12-01	48.8416988416988
1970-01-01	50.4132231404959
1970-02-01	50.0137627305257
1970-03-01	47.4291998900192
1970-04-01	45.3172205438066
1970-05-01	44.1943453197914
1970-06-01	44.1184535234439
1970-07-01	44.5175438596491
1970-08-01	45.6634746922025
1970-09-01	45.1339529797704
1970-10-01	45.5215729109776
1970-11-01	47.3124147339700
1970-12-01	48.8810043668122
1971-01-01	50.4229195088677
1971-02-01	50.6135805835833
1971-03-01	47.1132897603486
1971-04-01	46.2333423986946
1971-05-01	45.8276705626529
1971-06-01	45.4792288894923
1971-07-01	45.7801899592944
1971-08-01	46.5708864190838
1971-09-01	47.1432439750880
1971-10-01	46.7406004868813
1971-11-01	47.6461038961039
1971-12-01	50.0135317997294
1972-01-01	50.8249932377603
1972-02-01	51.3279132791328
1972-03-01	49.3358633776091
1972-04-01	48.2795990246546
1972-05-01	47.0127061367937
1972-06-01	47.2845176979195
1972-07-01	47.2810072327886
1972-08-01	47.6050307733476
1972-09-01	47.6585496387477
1972-10-01	46.7411545623836
1972-11-01	47.8712080894093
1972-12-01	49.0284801703487
1973-01-01	49.6544391281233
1973-02-01	49.6414342629482
1973-03-01	48.4067976633032
1973-04-01	47.6645435244161
1973-05-01	47.3893453485290
1973-06-01	46.2271644162033
1973-07-01	46.6490066225166
1973-08-01	47.8444855858239
1973-09-01	47.1209720021130
1973-10-01	45.5505677317138
1973-11-01	47.2266244057052
1973-12-01	50.5413255875363
1974-01-01	51.7941952506596
1974-02-01	51.1854583772392
1974-03-01	49.9208860759494
1974-04-01	48.3667017913593
1974-05-01	47.5802209363493
1974-06-01	47.8329393223010
1974-07-01	48.7509860636340
1974-08-01	49.0288713910761
1974-09-01	48.7401574803150
1974-10-01	48.3727034120735
1974-11-01	49.7375328083990
1974-12-01	51.7449488323275
1975-01-01	53.2617238669112
1975-02-01	52.8010471204188
1975-03-01	51.2310110005238
1975-04-01	50.1831501831502
1975-05-01	48.3281086729363
1975-06-01	47.8215496999739
1975-07-01	48.3037578288100
1975-08-01	48.9700130378096
1975-09-01	49.1666666666667
1975-10-01	49.2455775234131
1975-11-01	50.4164497657470
1975-12-01	51.8075422626788
1976-01-01	52.9228371005456
1976-02-01	52.5741029641186
1976-03-01	50.7672301690507
1976-04-01	49.6623376623377
1976-05-01	48.9758879958517
1976-06-01	48.8209380668567
1976-07-01	48.4565499351492
1976-08-01	48.7703857105876
1976-09-01	48.6297828335057
1976-10-01	48.8624612202689
1976-11-01	50.0129299198345
1976-12-01	50.9692426983717
1977-01-01	52.0392359318534
1977-02-01	51.9752130131681
1977-03-01	50.5678884873516
1977-04-01	48.1290322580645
1977-05-01	47.1785622262304
1977-06-01	47.0891293147862
1977-07-01	47.2179289026275
1977-08-01	48.0576279907384
1977-09-01	47.7512207658700
1977-10-01	47.9321859748266
1977-11-01	48.5875706214689
1977-12-01	49.4477266889288
1978-01-01	51.1287839917907
1978-02-01	50.8461538461538
1978-03-01	49.4485765580918
1978-04-01	47.7971311475410
1978-05-01	46.1263104065456
1978-06-01	45.5777096114519
1978-07-01	46.7535787321063
1978-08-01	47.2434915773354
1978-09-01	46.9252360295994
1978-10-01	46.8128505864355
1978-11-01	47.8338430173293
1978-12-01	48.7885743432798
1979-01-01	49.5796178343949
1979-02-01	50.0254712175242
1979-03-01	49.0960020371785
1979-04-01	47.1126939709997
1979-05-01	45.8545269582910
1979-06-01	46.0228716645489
1979-07-01	46.3278271918679
1979-08-01	46.5464702894870
1979-09-01	46.6379091601116
1979-10-01	46.2201927955353
1979-11-01	47.3537604456825
1979-12-01	48.8984553051405
1980-01-01	50.1265182186235
1980-02-01	50.0126550240446
1980-03-01	48.8866396761134
1980-04-01	46.8552664814347
1980-05-01	45.9500378501136
1980-06-01	45.5003781194858
1980-07-01	45.7366296670030
1980-08-01	46.1092923696802
1980-09-01	46.1016096579477
1980-10-01	46.5694898215632
1980-11-01	47.2626820693119
1980-12-01	48.4170854271357
1981-01-01	49.7991967871486
1981-02-01	50.0502008032128
1981-03-01	48.7700803212851
1981-04-01	46.3353413654618
1981-05-01	45.5845459106874
1981-06-01	45.7737647353900
1981-07-01	46.0612142498746
1981-08-01	46.4294662991731
1981-09-01	46.3561232156274
1981-10-01	46.2193289934902
1981-11-01	46.4196294441662
1981-12-01	47.2166499498496
1982-01-01	48.7615711783838
1982-02-01	48.8883337496877
1982-03-01	47.5131217195701
1982-04-01	46.1557663504743
1982-05-01	45.1395812562313
1982-06-01	45.3097785518786
1982-07-01	45.9297983569828
1982-08-01	46.3735717834078
1982-09-01	46.0163812360387
1982-10-01	45.5492189437144
1982-11-01	46.3027295285360
1982-12-01	46.5739821251241
1983-01-01	47.5235264982665
1983-02-01	47.5754576942108
1983-03-01	46.1729006688135
1983-04-01	44.6313706086096
1983-05-01	43.8566131025958
1983-06-01	44.1372500617132
1983-07-01	44.4060261793035
1983-08-01	44.5403007148139
1983-09-01	44.3377646479567
1983-10-01	44.4253015013537
1983-11-01	45.3628536285363
1983-12-01	46.7519685039370
1984-01-01	48.0707790611944
1984-02-01	47.9842674532940
1984-03-01	46.4373464373464
1984-04-01	44.7252208047105
1984-05-01	44.1392839627268
1984-06-01	43.7040666340029
1984-07-01	44.1234084231146
1984-08-01	44.6345636763627
1984-09-01	43.9863381312515
1984-10-01	43.8369538686844
1984-11-01	45.0243902439024
1984-12-01	46.3753966316817
1985-01-01	47.1348451597171
1985-02-01	47.1118693638801
1985-03-01	46.2326261887345
1985-04-01	44.4661140906875
1985-05-01	43.9006574141709
1985-06-01	44.0739839376977
1985-07-01	44.3201167599124
1985-08-01	44.6632628251884
1985-09-01	44.1290635613780
1985-10-01	44.2317014057198
1985-11-01	45.2300242130751
1985-12-01	46.8863581293918
1986-01-01	46.8893730331639
1986-02-01	46.9294003868472
1986-03-01	45.8434026099565
1986-04-01	44.2860594346460
1986-05-01	44.0677966101695
1986-06-01	43.6411992263056
1986-07-01	43.8253738543174
1986-08-01	44.4150216658642
1986-09-01	44.4017299375300
1986-10-01	44.4177671068427
1986-11-01	45.2077828489070
1986-12-01	46.3350156212449
1987-01-01	47.1209213051823
1987-02-01	47.0969289827255
1987-03-01	45.9362263246224
1987-04-01	44.1169422477834
1987-05-01	43.3365292425695
1987-06-01	43.4938892882818
1987-07-01	44.1732471883226
1987-08-01	44.3887297039160
1987-09-01	44.1422094965402
1987-10-01	44.3782753692234
1987-11-01	44.6823697359029
1987-12-01	45.3288846520496
1988-01-01	46.2178877259753
1988-02-01	46.5841466317543
1988-03-01	45.3225422518448
1988-04-01	43.6074144486692
1988-05-01	42.8808732795444
1988-06-01	43.2470923332542
1988-07-01	43.4132447187277
1988-08-01	43.9677648731927
1988-09-01	43.8741721854305
1988-10-01	44.1190363722248
1988-11-01	44.6883852691218
1988-12-01	45.0307619498344
1989-01-01	45.9229496572914
1989-02-01	45.6521739130435
1989-03-01	44.4706994328922
1989-04-01	42.8875236294896
1989-05-01	42.0655505776939
1989-06-01	42.0259128386337
1989-07-01	42.5206124852768
1989-08-01	43.2031984948260
1989-09-01	43.1620924231762
1989-10-01	43.0783669638667
1989-11-01	43.3129985922102
1989-12-01	43.9671361502347
1990-01-01	44.7757689598497
1990-02-01	44.4679351656096
1990-03-01	43.3200281756281
1990-04-01	42.0361247947455
1990-05-01	41.3389513108614
1990-06-01	41.4794007490637
1990-07-01	41.8697282099344
1990-08-01	42.4327485380117
1990-09-01	42.1003500583431
1990-10-01	42.3310023310023
1990-11-01	42.4468830259164
1990-12-01	43.0776426566885
1991-01-01	43.7777258930656
1991-02-01	43.6580238262088
1991-03-01	42.9638273045508
1991-04-01	41.4315691303334
1991-05-01	40.6993006993007
1991-06-01	40.5682347461574
1991-07-01	41.1230195712954
1991-08-01	41.2886717841358
1991-09-01	41.3897280966767
1991-10-01	41.4923291492329
1991-11-01	41.3897280966767
1991-12-01	41.8025151374010
1992-01-01	43.4812921217755
1992-02-01	43.0329772410590
1992-03-01	42.3094795539033
1992-04-01	41.2750116333178
1992-05-01	40.4551788202508
1992-06-01	40.3663343380478
1992-07-01	41.3921113689095
1992-08-01	41.4504170528267
1992-09-01	41.2635963897246
1992-10-01	40.9069875057844
1992-11-01	41.0553112705392
1992-12-01	41.7111059587294
1993-01-01	43.2407407407407
1993-02-01	43.8064366751563
1993-03-01	42.8439092172302
1993-04-01	41.1669367909238
1993-05-01	40.5224225612575
1993-06-01	40.5592789461521
1993-07-01	41.1519777931992
1993-08-01	41.4549653579677
1993-09-01	41.4262635587353
1993-10-01	41.1819021237304
1993-11-01	41.3379469434833
1993-12-01	41.7417417417417
1994-01-01	42.9132040627886
1994-02-01	43.3918669131238
1994-03-01	42.3485899214055
1994-04-01	40.4580152671756
1994-05-01	40.0461893764434
1994-06-01	40.3601939505888
1994-07-01	41.0908250519991
1994-08-01	41.5743305632502
1994-09-01	41.5359778597786
1994-10-01	41.3745387453875
1994-11-01	41.7070357554787
1994-12-01	42.3787528868360
1995-01-01	42.8867881023749
1995-02-01	42.9660429660430
1995-03-01	42.0383637624220
1995-04-01	40.7861271676301
1995-05-01	40.4476234425473
1995-06-01	40.3460207612457
1995-07-01	40.9479768786127
1995-08-01	41.4741219963031
1995-09-01	40.8356417359187
1995-10-01	41.3705583756345
1995-11-01	41.7896678966790
1995-12-01	42.1308065634389
1996-01-01	42.7020785219400
1996-02-01	43.0256766134629
1996-03-01	41.6242480333179
1996-04-01	40.4954850659875
1996-05-01	40.2636447733580
1996-06-01	39.6579616362376
1996-07-01	39.9166473720769
1996-08-01	40.8607126330403
1996-09-01	40.3512826438641
1996-10-01	40.5592789461521
1996-11-01	41.2430683918669
1996-12-01	41.9407132931913
1997-01-01	42.0263097161320
1997-02-01	41.6512488436633
1997-03-01	41.1791907514451
1997-04-01	40.0786308973173
1997-05-01	39.5241395241395
1997-06-01	39.1595474486262
1997-07-01	39.4816014811386
1997-08-01	39.9629972247919
1997-09-01	39.5381062355658
1997-10-01	39.4688221709007
1997-11-01	40.5867405867406
1997-12-01	41.0048622366288
1998-01-01	40.9669211195929
1998-02-01	41.5085608514577
1998-03-01	40.7964806668210
1998-04-01	39.7916666666667
1998-05-01	39.1254049051365
1998-06-01	39.3154486586494
1998-07-01	39.7361721823652
1998-08-01	39.4864677307425
1998-09-01	39.7595931576514
1998-10-01	39.9815114397966
1998-11-01	40.4530744336570
1998-12-01	41.2882298424467
1999-01-01	41.9444444444444
1999-02-01	41.8809358350706
1999-03-01	40.6626506024096
1999-04-01	39.6103896103896
1999-05-01	39.2906815020862
1999-06-01	39.7635056805008
1999-07-01	40.0510204081633
1999-08-01	39.7219003476246
1999-09-01	39.7822057460612
1999-10-01	40.2594394255270
1999-11-01	40.4585456229736
1999-12-01	41.2801484230056
2000-01-01	41.7806631115233
2000-02-01	41.8928322894920
2000-03-01	41.2679981421273
2000-04-01	39.6747967479675
2000-05-01	39.4009751567216
2000-06-01	39.5683453237410
2000-07-01	39.8559144782710
2000-08-01	40.1486988847584
2000-09-01	40.0696864111498
2000-10-01	39.7352531351602
2000-11-01	39.9117715347109
2000-12-01	40.7897793263647
2001-01-01	40.6417112299465
2001-02-01	40.4151119402985
2001-03-01	40.4567699836868
2001-04-01	39.8228025180695
2001-05-01	39.1942244993014
2001-06-01	39.2408011178388
2001-07-01	39.6129633947307
2001-08-01	40.0000000000000
2001-09-01	40.0139827546027
2001-10-01	39.7206053550640
2001-11-01	39.4045126773668
2001-12-01	40.5638397017707
2002-01-01	41.2286848867087
2002-02-01	41.1090313523631
2002-03-01	40.5664794007491
2002-04-01	40.2061855670103
2002-05-01	39.9719166861690
2002-06-01	39.5648104819841
2002-07-01	39.7234591047574
2002-08-01	39.9390243902439
2002-09-01	39.9156711173577
2002-10-01	39.6628424256614
2002-11-01	39.6575984990619
2002-12-01	40.5405405405405
2003-01-01	41.1847672778561
2003-02-01	41.4743287800283
2003-03-01	40.3578996939016
2003-04-01	39.8209236569274
2003-05-01	39.4260174076688
2003-06-01	38.9424206815511
2003-07-01	39.4210402447635
2003-08-01	39.8211343845611
2003-09-01	39.7224835371590
2003-10-01	39.5343367826905
2003-11-01	39.8588235294118
2003-12-01	40.2453408822836
2004-01-01	40.9005186232909
2004-02-01	40.8876298394712
2004-03-01	40.0990099009901
2004-04-01	39.5666509656147
2004-05-01	39.3589441432948
2004-06-01	39.2772791686349
2004-07-01	39.0924131411014
2004-08-01	38.9598108747045
2004-09-01	39.0872546701348
2004-10-01	39.0883325460557
2004-11-01	40.1087213424722
2004-12-01	40.4310753197537
2005-01-01	40.3031020601468
2005-02-01	40.4976303317536
2005-03-01	40.0142314990512
2005-04-01	38.9073634204276
2005-05-01	37.9743833017078
2005-06-01	38.4798099762470
2005-07-01	38.4633682207422
2005-08-01	38.6498692655099
2005-09-01	38.3939177952008
2005-10-01	38.4450784593438
2005-11-01	39.4811994288434
2005-12-01	39.9046483909416
2006-01-01	39.7900763358779
2006-02-01	39.8232202580029
2006-03-01	39.6609360076409
2006-04-01	38.6602870813397
2006-05-01	37.5956022944551
2006-06-01	37.8585086042065
2006-07-01	38.2902298850575
2006-08-01	38.1169142309535
2006-09-01	38.0062305295950
2006-10-01	38.0393096836050
2006-11-01	38.3029721955896
2006-12-01	39.0865384615385
2007-01-01	39.6190016879672
2007-02-01	39.3676080135168
2007-03-01	38.6621588988167
2007-04-01	37.6086956521739
2007-05-01	36.8446484658130
2007-06-01	37.2132335184738
2007-07-01	37.8567972907596
2007-08-01	37.7966101694915
2007-09-01	37.9026398643739
2007-10-01	37.7180232558140
2007-11-01	37.3575757575758
2007-12-01	37.8181818181818
2008-01-01	38.6258800679777
2008-02-01	38.9348249027237
2008-03-01	38.1265206812652
2008-04-01	37.0189965903556
2008-05-01	36.8613138686131
2008-06-01	36.7998051631758
2008-07-01	37.4817340477350
2008-08-01	37.5701390583069
2008-09-01	37.2711740297779
2008-10-01	37.6556776556777
2008-11-01	37.1058420923980
2008-12-01	37.4847076094935
2009-01-01	37.7450980392157
2009-02-01	37.8159509202454
2009-03-01	37.8836238644734
2009-04-01	36.7657901204227
2009-05-01	36.5625768379641
2009-06-01	36.6363412835014
2009-07-01	36.8576346201131
2009-08-01	36.3032242185577
2009-09-01	35.9605911330049
2009-10-01	36.7824587336782
2009-11-01	36.6100024636610
2009-12-01	37.0653514180025
2010-01-01	37.5802469135802
2010-02-01	37.5525339925834
2010-03-01	37.4691052891745
2010-04-01	36.5998515219005
2010-05-01	36.2354687113530
2010-06-01	36.6691376328144
2010-07-01	36.6897575457694
2010-08-01	36.3861386138614
2010-09-01	35.6205102799108
2010-10-01	36.0732854666997
2010-11-01	36.4603960396040
2010-12-01	37.0608609599208
2011-01-01	37.2680029695620
2011-02-01	36.9893538004457
2011-03-01	36.3865123301460
2011-04-01	35.7340720221607
2011-05-01	35.4465408805031
2011-06-01	35.3799698037242
2011-07-01	35.9587317564167
2011-08-01	36.0879454131918
2011-09-01	36.4992541024366
2011-10-01	36.4088535190251
2011-11-01	36.4111498257840
2011-12-01	37.1948181365222
2012-01-01	37.9010196468540
2012-02-01	37.3256972111554
2012-03-01	37.2290057313730
2012-04-01	36.1707438841737
2012-05-01	35.9410147463134
2012-06-01	36.1840460115029
2012-07-01	36.3044566850275
2012-08-01	36.4183596689240
2012-09-01	36.3796133567663
2012-10-01	36.0894697160090
2012-11-01	36.0090588827378
2012-12-01	36.7161923948628
2013-01-01	36.4072764022233
2013-02-01	35.7884079979752
2013-03-01	35.6563608717689
2013-04-01	34.5763571790969
2013-05-01	34.5694691389383
2013-06-01	35.1042196237926
2013-07-01	35.2671755725191
2013-08-01	34.9133537206932
2013-09-01	34.5144022431812
2013-10-01	33.9795918367347
2013-11-01	33.9294839039346
2013-12-01	34.5347648261759
2014-01-01	35.1614556637622
2014-02-01	34.9344978165939
2014-03-01	34.7993827160494
2014-04-01	34.2776203966006
2014-05-01	33.5824742268041
2014-06-01	33.3763218983750
2014-07-01	33.7032258064516
2014-08-01	34.0056891647272
2014-09-01	33.3160755889205
2014-10-01	33.1259720062208
2014-11-01	33.2295719844358
2014-12-01	33.4025974025974
2015-01-01	34.1749089016137
2015-02-01	33.9588219963513
2015-03-01	33.9765319426336
2015-04-01	33.5160532498042
2015-05-01	33.0546119675986
2015-06-01	32.4458365961890
2015-07-01	32.8276222861627
2015-08-01	33.0102174482578
2015-09-01	32.2504584752423
2015-10-01	32.3637316561845
2015-11-01	32.7563598216627
2015-12-01	32.7115081450342
2016-01-01	32.2461862177801
2016-02-01	32.9467580390090
2016-03-01	32.8322784810127
2016-04-01	32.1362556113018
2016-05-01	32.3125659978881
2016-06-01	31.4496963295485
2016-07-01	31.4482029598309
2016-08-01	31.3045779306695
2016-09-01	31.0911016949152
2016-10-01	31.3476303944930
2016-11-01	31.3907284768212
2016-12-01	31.2367303609342
2017-01-01	31.3444709626094
2017-02-01	31.9352269710645
2017-03-01	31.9872476089267
2017-04-01	30.8940926024481
2017-05-01	30.3989361702128
2017-06-01	30.0239552834709
2017-07-01	30.2820649281533
2017-08-01	30.1092459365841
2017-09-01	29.7549280767182
2017-10-01	30.0719808051186
2017-11-01	29.8746332355295
2017-12-01	29.9412393162393
2018-01-01	29.9090422685928
2018-02-01	29.6117804551540
2018-03-01	29.0728831725616
2018-04-01	28.5101822079314
2018-05-01	28.7590458322166
2018-06-01	28.6823781467595
2018-07-01	28.2993562231760
2018-08-01	28.1569048898442
2018-09-01	27.9269602577873