Month	Percent
1978-02-01	56.2681512943724
1978-03-01	55.9698938172208
1978-04-01	55.9841971917753
1978-05-01	56.2074186923757
1978-06-01	56.5122542194416
1978-07-01	56.3792447144432
1978-08-01	56.5172286226669
1978-09-01	56.5585547048580
1978-10-01	56.5921406955735
1978-11-01	56.6086680820637
1978-12-01	55.6494878191946
1979-01-01	57.6631534359538
1979-02-01	56.3990683899908
1979-03-01	56.0471899849457
1979-04-01	56.3286365445922
1979-05-01	56.8868096886087
1979-06-01	56.7399147273816
1979-07-01	56.6774900366830
1979-08-01	57.1471722997163
1979-09-01	56.0995730392660
1979-10-01	55.9310890972537
1979-11-01	55.8257416151638
1979-12-01	55.2731429614922
1980-01-01	57.0741811452825
1980-02-01	55.4671545025316
1980-03-01	54.7048284203404
1980-04-01	55.3965692436526
1980-05-01	55.2639033438268
1980-06-01	55.1416056356066
1980-07-01	54.9223874254099
1980-08-01	55.2948400755963
1980-09-01	54.4536784792313
1980-10-01	55.3298009205762
1980-11-01	55.2242261530118
1980-12-01	54.5590636029996
1981-01-01	56.7709805165679
1981-02-01	55.4935709869130
1981-03-01	54.7107555334849
1981-04-01	54.9969760951619
1981-05-01	55.3214357575517
1981-06-01	55.5769344012169
1981-07-01	55.3425082263648
1981-08-01	55.6314443456916
1981-09-01	54.4508255695736
1981-10-01	55.0897288877316
1981-11-01	55.1951210820240
1981-12-01	54.4834427283756
1982-01-01	56.4993359201925
1982-02-01	55.0658231615764
1982-03-01	54.3643070590087
1982-04-01	55.3004620428201
1982-05-01	55.2737613155350
1982-06-01	55.6246704014848
1982-07-01	55.6758092511175
1982-08-01	56.0312573316664
1982-09-01	55.2716783962378
1982-10-01	55.1343226004566
1982-11-01	55.4048162662885
1982-12-01	54.6568542823038
1983-01-01	56.9320358412289
1983-02-01	55.1171532366854
1983-03-01	54.4377629533434
1983-04-01	55.5149550694638
1983-05-01	55.1672885342261
1983-06-01	55.5763048235830
1983-07-01	55.4818138279488
1983-08-01	55.9751604368494
1983-09-01	54.7193094745016
1983-10-01	55.4943350157004
1983-11-01	55.2182100536336
1983-12-01	54.4517198350884
1984-01-01	56.7347425399840
1984-02-01	55.1423046290379
1984-03-01	53.8565394975015
1984-04-01	54.1720829801951
1984-05-01	54.7014066337461
1984-06-01	54.6021292047953
1984-07-01	54.9129303549435
1984-08-01	55.4158965507486
1984-09-01	54.0325522268880
1984-10-01	54.7070587830720
1984-11-01	54.4498349748668
1984-12-01	53.7014194105998
1985-01-01	55.8633838121658
1985-02-01	53.8288704243495
1985-03-01	53.0754685559547
1985-04-01	54.3855196311488
1985-05-01	53.8818240417777
1985-06-01	53.9237033550879
1985-07-01	53.8938271314216
1985-08-01	54.3060590385284
1985-09-01	53.0048710298907
1985-10-01	53.7149682850853
1985-11-01	52.6580064247694
1985-12-01	52.1618826329318
1986-01-01	54.1223650896539
1986-02-01	52.1269918740274
1986-03-01	51.2357518876193
1986-04-01	51.1264580224280
1986-05-01	51.4866048395254
1986-06-01	51.8104036777890
1986-07-01	51.5027310947732
1986-08-01	52.4228601213195
1986-09-01	51.1284374441906
1986-10-01	51.4653235203894
1986-11-01	51.3943951226433
1986-12-01	50.6749801514001
1987-01-01	52.9218221142946
1987-02-01	51.1218951519972
1987-03-01	49.9340950777963
1987-04-01	50.5862297419206
1987-05-01	50.9998014210346
1987-06-01	51.3124694181475
1987-07-01	51.0099960495975
1987-08-01	51.7388568897987
1987-09-01	50.9400566825815
1987-10-01	51.1610811373230
1987-11-01	51.1241824115732
1987-12-01	49.9274163903604
1988-01-01	51.6666639024037
1988-02-01	50.6468141685323
1988-03-01	49.1376669259883
1988-04-01	49.4690322037539
1988-05-01	50.0996979247018
1988-06-01	50.3706909101067
1988-07-01	50.9797723011286
1988-08-01	50.6498953487254
1988-09-01	49.3992576074312
1988-10-01	50.2981875700247
1988-11-01	50.0922895630449
1988-12-01	48.8587499484583
1989-01-01	50.6549780750900
1989-02-01	49.2244381439260
1989-03-01	48.8154393947611
1989-04-01	48.8696630079196
1989-05-01	48.4252401049418
1989-06-01	48.9824686480358
1989-07-01	48.9167595163956
1989-08-01	49.1509376043034
1989-09-01	47.8894400490210
1989-10-01	48.6940379773374
1989-11-01	48.2166208402469
1989-12-01	47.4693441990320
1990-01-01	49.4408157524926
1990-02-01	47.7811837770231
1990-03-01	47.4994294894346
1990-04-01	47.6959741029918
1990-05-01	47.4647881097923
1990-06-01	47.5868784457080
1990-07-01	47.4733690992619
1990-08-01	48.1011628152583
1990-09-01	47.2631297554811
1990-10-01	47.9926146352934
1990-11-01	47.8659752789058
1990-12-01	46.9084991481504
1991-01-01	49.0706052043859
1991-02-01	47.7366091042148
1991-03-01	47.3782207358097
1991-04-01	47.1028924266988
1991-05-01	47.6037233921514
1991-06-01	48.2236231218491
1991-07-01	48.7632091520618
1991-08-01	48.4445971705942
1991-09-01	47.2917039223562
1991-10-01	48.6603813105804
1991-11-01	48.6299405791368
1991-12-01	47.3485487185720
1992-01-01	49.0093967531246
1992-02-01	47.7256187806164
1992-03-01	47.5661578177332
1992-04-01	48.0004604970972
1992-05-01	48.1720619799485
1992-06-01	48.1335517745318
1992-07-01	48.0657023483540
1992-08-01	48.4604226043061
1992-09-01	47.4398652827668
1992-10-01	48.1568648415291
1992-11-01	48.5281748475213
1992-12-01	47.4621268609684
1993-01-01	49.0824375799450
1993-02-01	48.3390912136318
1993-03-01	47.7917556876284
1993-04-01	49.0117783309491
1993-05-01	48.6753323341326
1993-06-01	48.7200595721768
1993-07-01	48.9068206315193
1993-08-01	48.8616256854747
1993-09-01	47.4789731252536
1993-10-01	47.9112510321724
1993-11-01	47.7174859365882
1993-12-01	47.0949921805812
1994-01-01	48.7572839656938
1994-02-01	47.3713227344282
1994-03-01	47.0569820995183
1994-04-01	47.6439051025547
1994-05-01	47.6521182367710
1994-06-01	47.6849478257642
1994-07-01	47.2513525830919
1994-08-01	48.1672118240112
1994-09-01	46.1640573120727
1994-10-01	47.5239965279586
1994-11-01	47.2607379685750
1994-12-01	46.3260085272243
1995-01-01	48.1455235735481
1995-02-01	46.6032708295739
1995-03-01	46.2235584025593
1995-04-01	46.5320118369495
1995-05-01	46.4732885133772
1995-06-01	46.3130951454952
1995-07-01	46.4096676494425
1995-08-01	46.8202479068943
1995-09-01	45.8010345989863
1995-10-01	46.3488376897491
1995-11-01	45.7638137762798
1995-12-01	45.3743077950551
1996-01-01	47.0210575630790
1996-02-01	46.0009100622307
1996-03-01	45.7368599773887
1996-04-01	46.4035760511182
1996-05-01	46.1672048092070
1996-06-01	46.4141909765138
1996-07-01	46.2348337899887
1996-08-01	46.5983626533586
1996-09-01	45.5968188071114
1996-10-01	46.2947102098625
1996-11-01	46.5722216847632
1996-12-01	45.4748921210412
1997-01-01	47.1593476510111
1997-02-01	45.7885463350606
1997-03-01	45.9315323390938
1997-04-01	46.2300877054748
1997-05-01	46.4178210444416
1997-06-01	46.6755714352541
1997-07-01	46.5992241282226
1997-08-01	47.3521665497732
1997-09-01	45.7050380237931
1997-10-01	46.8074947331354
1997-11-01	46.4117903413154
1997-12-01	45.9385517191229
1998-01-01	47.6011265522082
1998-02-01	46.4785755694173
1998-03-01	46.3111934682481
1998-04-01	46.3109563458494
1998-05-01	46.5240452422057
1998-06-01	46.3205237126885
1998-07-01	46.2839500797909
1998-08-01	46.7867458349243
1998-09-01	45.3560744026293
1998-10-01	46.2692408305047
1998-11-01	46.4738170291398
1998-12-01	45.6394890012840
1999-01-01	47.4553710874151
1999-02-01	46.4176087077972
1999-03-01	46.3084484279319
1999-04-01	46.4730949723250
1999-05-01	46.6520450160627
1999-06-01	46.6482805309562
1999-07-01	46.6319389670336
1999-08-01	47.1611574771066
1999-09-01	45.4201468264393
1999-10-01	46.0912390737963
1999-11-01	46.1153050277217
1999-12-01	45.0979308350798
2000-01-01	47.1188400757977
2000-02-01	45.7242026711355
2000-03-01	45.2916566466266
2000-04-01	45.3279185573416
2000-05-01	45.4475399192946
2000-06-01	45.4279826552322
2000-07-01	45.1631908016958
2000-08-01	45.5027939860731
2000-09-01	44.5286020938558
2000-10-01	45.5825428292110
2000-11-01	45.8883242444931
2000-12-01	44.9050249169489
2001-01-01	46.5480129013114
2001-02-01	45.0995119233459
2001-03-01	44.9379303769723
2001-04-01	44.4636295250886
2001-05-01	44.6473687374786
2001-06-01	44.6704381278469
2001-07-01	45.1093562520779
2001-08-01	45.2956665622506
2001-09-01	44.3920766941081
2001-10-01	44.9044050207452
2001-11-01	45.0493373445214
2001-12-01	44.2977265932092
2002-01-01	45.3020365330304
2002-02-01	44.7041377915304
2002-03-01	44.8260863165868
2002-04-01	45.2777985802860
2002-05-01	45.2808522513548
2002-06-01	44.8926788188754
2002-07-01	45.2943163130504
2002-08-01	45.1290115624398
2002-09-01	43.8272362207005
2002-10-01	44.7373690353336
2002-11-01	44.4027149837892
2002-12-01	43.4409629073431
2003-01-01	44.3209567623222
2003-02-01	43.4254289479513
2003-03-01	43.7144532279629
2003-04-01	43.9843792687051
2003-05-01	43.7555480084544
2003-06-01	44.0534762752444
2003-07-01	44.5078455329113
2003-08-01	44.7843046055620
2003-09-01	43.6024977711503
2003-10-01	44.4797429252548
2003-11-01	44.5508444856671
2003-12-01	43.8430160946703
2004-01-01	45.3094176557781
2004-02-01	44.4191758384225
2004-03-01	44.1953553170276
2004-04-01	44.4604169409596
2004-05-01	44.4095606336754
2004-06-01	44.4526938429095
2004-07-01	44.6063829737347
2004-08-01	44.8524326240689
2004-09-01	43.6440004442793
2004-10-01	44.0998005980215
2004-11-01	44.1548634240114
2004-12-01	43.1617547691974
2005-01-01	44.2258554101801
2005-02-01	43.1719971558721
2005-03-01	42.7225137119366
2005-04-01	43.0653131892455
2005-05-01	43.0013683225158
2005-06-01	42.9538353172665
2005-07-01	43.1563405824868
2005-08-01	43.4225196033800
2005-09-01	42.3366724002881
2005-10-01	42.9941523484154
2005-11-01	43.0831564163079
2005-12-01	42.2391695228093
2006-01-01	43.4929383160380
2006-02-01	42.7508587366907
2006-03-01	42.5608730737782
2006-04-01	42.7156019663108
2006-05-01	42.3856553611561
2006-06-01	42.3324381462909
2006-07-01	42.6183654061539
2006-08-01	42.7754398210552
2006-09-01	41.5189761892138
2006-10-01	42.6400980680073
2006-11-01	42.6213254774563
2006-12-01	41.3667306604450
2007-01-01	42.8840524921218
2007-02-01	41.8738754892942
2007-03-01	41.9002530965772
2007-04-01	42.1997872596565
2007-05-01	41.9607576963182
2007-06-01	42.0585312812429
2007-07-01	42.2760921637237
2007-08-01	42.3894094811472
2007-09-01	41.1287208499658
2007-10-01	41.7745238096074
2007-11-01	41.8067096031877
2007-12-01	40.9233742333220
2008-01-01	42.1786183194356
2008-02-01	41.4744065890151
2008-03-01	41.4052424271212
2008-04-01	41.2089548240381
2008-05-01	41.4522426055088
2008-06-01	41.4138826461130
2008-07-01	41.4641961873748
2008-08-01	41.8510326740498
2008-09-01	40.9341344064818
2008-10-01	41.5162429177550
2008-11-01	41.6592707875042
2008-12-01	40.8703665307050
2009-01-01	41.9135824783462
2009-02-01	40.5527708491795
2009-03-01	40.6385222943484
2009-04-01	41.0737294179250
2009-05-01	40.9947782691413
2009-06-01	41.2158918667744
2009-07-01	41.5696772697758
2009-08-01	42.0514409049217
2009-09-01	41.0109329364342
2009-10-01	41.5347760846721
2009-11-01	41.6772256847091
2009-12-01	40.8059446823867
2010-01-01	42.1112877821636
2010-02-01	41.4554276065399
2010-03-01	41.3321045794396
2010-04-01	41.5448151342706
2010-05-01	41.6178583002838
2010-06-01	41.5043370476975
2010-07-01	41.5480926890496
2010-08-01	41.8772489001849
2010-09-01	40.8327182521364
2010-10-01	41.1168812209761
2010-11-01	41.1475405252267
2010-12-01	40.5632094134392
2011-01-01	41.8246102648684
2011-02-01	41.0830004435651
2011-03-01	40.6943310023821
2011-04-01	41.2095560476264
2011-05-01	41.1170214027501
2011-06-01	41.0519294479831
2011-07-01	41.2643275974224
2011-08-01	41.6341284850645
2011-09-01	40.4410050365725
2011-10-01	41.1008329290709
2011-11-01	41.3693429915892
2011-12-01	40.8420568527461
2012-01-01	42.0780590768846
2012-02-01	41.1700058469649
2012-03-01	40.6385295446772
2012-04-01	41.2986705966830
2012-05-01	40.7078214956879
2012-06-01	41.1811535115432
2012-07-01	41.3935183759002
2012-08-01	41.9981274721307
2012-09-01	40.5224094490560
2012-10-01	41.2683901612881
2012-11-01	41.5780289686370
2012-12-01	40.9064476188451
2013-01-01	41.9147706425232
2013-02-01	40.8925661733957
2013-03-01	40.8877022837524
2013-04-01	40.8792315365277
2013-05-01	41.1220762759107
2013-06-01	41.2074917164435
2013-07-01	41.5428461051892
2013-08-01	41.9054368488314
2013-09-01	40.8748916868746
2013-10-01	41.4358314248724
2013-11-01	41.7645296266513
2013-12-01	41.2863242844302
2014-01-01	42.1451854491907
2014-02-01	41.0607724393941
2014-03-01	40.8986083226492
2014-04-01	41.3274795404164
2014-05-01	41.1492648275759
2014-06-01	41.2782028374735
2014-07-01	41.3968473720411
2014-08-01	41.1588634272902
2014-09-01	41.4356856004288
2014-10-01	41.4626021538459
2014-11-01	41.7573806056255
2014-12-01	40.9089098449428
2015-01-01	42.0325956298480
2015-02-01	40.6220435511368
2015-03-01	41.0000642324807
2015-04-01	41.1176670745864
2015-05-01	40.8725021382827
2015-06-01	40.9942665660581
2015-07-01	40.7776163907570
2015-08-01	41.1829914571363
2015-09-01	40.9685431270091
2015-10-01	40.7007984196097
2015-11-01	40.2489881499308
2015-12-01	39.9774023091404
2016-01-01	41.2511822132880
2016-02-01	39.9831754689463
2016-03-01	40.3971936560015
2016-04-01	40.4018977075042
2016-05-01	40.4175861774805
2016-06-01	40.3798527919908
2016-07-01	40.6137204160431
2016-08-01	41.2208119328580
2016-09-01	41.0518259924287
2016-10-01	41.1096402020290
2016-11-01	40.6719863169566
2016-12-01	40.2697503210516
2017-01-01	41.3271818959054
2017-02-01	40.2446309095774
2017-03-01	40.1766630131390
2017-04-01	40.4179607675142
2017-05-01	40.1475712622111
2017-06-01	40.0993294663797
2017-07-01	40.3645086332268
2017-08-01	40.3043192644844
2017-09-01	40.0619338893152
2017-10-01	40.0814678238464
2017-11-01	39.6612700693141
2017-12-01	38.9016105767490
2018-01-01	40.1655363459868
2018-02-01	38.8988911736116
2018-03-01	39.1962278164772
2018-04-01	39.3865257415403
2018-05-01	39.2892097641600
2018-06-01	39.2937893222401
2018-07-01	39.7842149673887
2018-08-01	39.8596156140569
2018-09-01	39.8614819203651