Month	Percent
1978-02-01	49.7273881338980
1978-03-01	48.5239493078379
1978-04-01	48.1813139970942
1978-05-01	48.2802197856064
1978-06-01	48.6069035148211
1978-07-01	48.5431835572017
1978-08-01	48.2491224743299
1978-09-01	48.1100649081950
1978-10-01	48.1576629860225
1978-11-01	48.0555465324735
1978-12-01	48.3086366394928
1979-01-01	51.3781770006718
1979-02-01	48.9629055272070
1979-03-01	47.8346628143169
1979-04-01	47.9661018206401
1979-05-01	48.7903285374066
1979-06-01	48.4119467172980
1979-07-01	48.0863393864899
1979-08-01	48.5743650151679
1979-09-01	47.5032620624037
1979-10-01	46.5776206460644
1979-11-01	46.7855434358098
1979-12-01	47.4628292222587
1980-01-01	50.3968407835993
1980-02-01	47.4279614266253
1980-03-01	46.0642448631210
1980-04-01	47.0806124743899
1980-05-01	47.1832849250098
1980-06-01	46.7664735907935
1980-07-01	46.4323456016904
1980-08-01	46.6995821301998
1980-09-01	46.1450355642004
1980-10-01	46.7459259001019
1980-11-01	46.4510734027273
1980-12-01	46.9419690626108
1981-01-01	50.0090019825344
1981-02-01	47.4099770291522
1981-03-01	45.7133632351519
1981-04-01	45.9596103827318
1981-05-01	46.2525297411073
1981-06-01	46.3754770332387
1981-07-01	46.3268869510394
1981-08-01	46.4598650453436
1981-09-01	45.0507430849098
1981-10-01	45.3110757403015
1981-11-01	45.3879772967076
1981-12-01	46.1398203879224
1982-01-01	49.0656619266457
1982-02-01	46.4358327391124
1982-03-01	44.9881462417096
1982-04-01	46.1189568704051
1982-05-01	45.9769267330770
1982-06-01	45.9597999027631
1982-07-01	45.8123625309193
1982-08-01	45.9735672270640
1982-09-01	45.1452029220500
1982-10-01	45.2832891014645
1982-11-01	45.3425701093791
1982-12-01	45.8954365403037
1983-01-01	49.5897409347044
1983-02-01	46.1483783669810
1983-03-01	44.7114366850351
1983-04-01	46.3187652930965
1983-05-01	45.7372762510748
1983-06-01	46.1113557550200
1983-07-01	45.9532315246297
1983-08-01	46.4940573810171
1983-09-01	45.0267107950397
1983-10-01	45.9476295405344
1983-11-01	45.4255924975740
1983-12-01	45.8283620182291
1984-01-01	49.1639800863818
1984-02-01	46.2231310571260
1984-03-01	43.9777132850283
1984-04-01	44.2685442734136
1984-05-01	44.7705956953894
1984-06-01	44.2939716954798
1984-07-01	44.5975888299778
1984-08-01	44.9930905027528
1984-09-01	43.2823315525399
1984-10-01	43.7188806532111
1984-11-01	43.4888336716059
1984-12-01	43.6345223720576
1985-01-01	47.0969896256007
1985-02-01	43.4897151645736
1985-03-01	41.8880233681048
1985-04-01	43.5546232232776
1985-05-01	42.8958707744105
1985-06-01	42.7849741482148
1985-07-01	42.6032125192713
1985-08-01	42.8547974108367
1985-09-01	41.8916024363028
1985-10-01	42.1761988606582
1985-11-01	40.6115666211789
1985-12-01	41.0977003633368
1986-01-01	44.3475105761268
1986-02-01	40.8372280672017
1986-03-01	39.2345720302543
1986-04-01	39.2132237390804
1986-05-01	39.2067554607844
1986-06-01	39.3153047980216
1986-07-01	38.6089847591860
1986-08-01	39.6759919452387
1986-09-01	38.4570464454886
1986-10-01	38.5038623261715
1986-11-01	38.5751060395183
1986-12-01	38.9699573509875
1987-01-01	42.5595735377562
1987-02-01	39.1924395900516
1987-03-01	37.3240003757394
1987-04-01	37.8517010081326
1987-05-01	38.0912361134479
1987-06-01	38.2922244319024
1987-07-01	38.3517117550100
1987-08-01	38.3236271196795
1987-09-01	37.6665189383901
1987-10-01	38.1768366157781
1987-11-01	37.9311067116878
1987-12-01	37.5674943201873
1988-01-01	40.1994376393950
1988-02-01	37.7587187900821
1988-03-01	35.7727773102040
1988-04-01	35.9054141561491
1988-05-01	36.2679338218467
1988-06-01	36.4589311575866
1988-07-01	37.2322233262555
1988-08-01	36.9589613939516
1988-09-01	35.1890980607142
1988-10-01	36.4099063662763
1988-11-01	35.9102035456890
1988-12-01	35.9303529447684
1989-01-01	38.8627440395402
1989-02-01	36.3990196110172
1989-03-01	35.0323396638940
1989-04-01	34.7653004832036
1989-05-01	34.3394079654063
1989-06-01	34.7880941413208
1989-07-01	34.8344215934571
1989-08-01	34.6607121088865
1989-09-01	33.1144716537032
1989-10-01	34.2750028860250
1989-11-01	32.9443514752876
1989-12-01	33.2862388455093
1990-01-01	36.7426677535497
1990-02-01	33.3670317352370
1990-03-01	32.3762091840700
1990-04-01	32.8539067077229
1990-05-01	32.4697950300409
1990-06-01	32.3960437471140
1990-07-01	33.1251327814803
1990-08-01	33.4133204722059
1990-09-01	32.3842674035868
1990-10-01	33.3247983933653
1990-11-01	33.0324523322047
1990-12-01	33.1085868639016
1991-01-01	36.0085929085432
1991-02-01	33.0596470994511
1991-03-01	32.1771071597381
1991-04-01	31.8053861483775
1991-05-01	32.1140607151369
1991-06-01	32.5561095610745
1991-07-01	33.3843947894085
1991-08-01	32.8375360470954
1991-09-01	31.7197767580067
1991-10-01	33.4606798456691
1991-11-01	33.1264998222924
1991-12-01	33.0611037456011
1992-01-01	35.1351592113945
1992-02-01	32.6091142050530
1992-03-01	31.8946831888293
1992-04-01	32.5834050908075
1992-05-01	32.6959342468729
1992-06-01	32.3852227942973
1992-07-01	32.7080008945961
1992-08-01	32.7892776026874
1992-09-01	31.7635547028041
1992-10-01	32.5988394660816
1992-11-01	32.7153865628830
1992-12-01	32.7230790729979
1993-01-01	35.3556436076599
1993-02-01	33.3307336599124
1993-03-01	32.1217723921791
1993-04-01	33.5174371422215
1993-05-01	33.0001655075610
1993-06-01	33.0142444594800
1993-07-01	33.3987101343045
1993-08-01	32.9883173839876
1993-09-01	31.7134173404825
1993-10-01	32.0544200069401
1993-11-01	31.7149554362140
1993-12-01	32.1903200503910
1994-01-01	35.1920743244781
1994-02-01	32.4789631555927
1994-03-01	31.9973024937312
1994-04-01	32.7059613270169
1994-05-01	32.3338189991827
1994-06-01	32.2921171319246
1994-07-01	31.9941147699668
1994-08-01	32.6205493414785
1994-09-01	30.3404171869162
1994-10-01	32.0079346887068
1994-11-01	31.6234602600960
1994-12-01	31.5549897674399
1995-01-01	34.0701171996491
1995-02-01	31.7342180557176
1995-03-01	30.8966048487997
1995-04-01	31.3280870789275
1995-05-01	30.9164778504727
1995-06-01	30.5278706521186
1995-07-01	30.5544758424380
1995-08-01	30.9030902531164
1995-09-01	30.0350615879018
1995-10-01	30.7045982330324
1995-11-01	29.8272042300709
1995-12-01	30.3876168590593
1996-01-01	33.1493318638264
1996-02-01	30.8077199883309
1996-03-01	30.3344159757495
1996-04-01	31.4181903026972
1996-05-01	30.9515159076573
1996-06-01	31.0703910035250
1996-07-01	31.0142664488200
1996-08-01	31.1057493477704
1996-09-01	29.8575702441503
1996-10-01	30.7476444248480
1996-11-01	30.6722191420578
1996-12-01	30.5131445526243
1997-01-01	32.6699360091333
1997-02-01	30.0446825589250
1997-03-01	30.4910853271154
1997-04-01	30.4361253528515
1997-05-01	30.5842884178925
1997-06-01	30.6918028496598
1997-07-01	30.6056545927743
1997-08-01	31.3093010322826
1997-09-01	29.4491844045219
1997-10-01	30.6983980688021
1997-11-01	30.4141318848162
1997-12-01	30.8021264706490
1998-01-01	33.3870102971245
1998-02-01	30.9535208092918
1998-03-01	30.4848818489162
1998-04-01	30.6233721816918
1998-05-01	30.7244474157675
1998-06-01	30.3776083528992
1998-07-01	30.4815539893170
1998-08-01	30.6197306815808
1998-09-01	29.3526358960587
1998-10-01	30.1994818341894
1998-11-01	30.6050068936829
1998-12-01	30.4019469481772
1999-01-01	33.0035150869709
1999-02-01	30.9020312997759
1999-03-01	30.6662724065260
1999-04-01	30.8794471878899
1999-05-01	30.6984012658103
1999-06-01	30.5271982924677
1999-07-01	30.6060153738469
1999-08-01	30.9796890269474
1999-09-01	29.3479331099983
1999-10-01	30.1831480194580
1999-11-01	30.1132272334616
1999-12-01	29.5519522536372
2000-01-01	32.4078019713588
2000-02-01	30.0747379649849
2000-03-01	29.4750490050448
2000-04-01	29.3397002108828
2000-05-01	29.5787386354938
2000-06-01	29.0537750559234
2000-07-01	28.8851652819070
2000-08-01	29.2448666919316
2000-09-01	27.9750544180413
2000-10-01	29.3927805533310
2000-11-01	29.6502479251382
2000-12-01	29.4016724104782
2001-01-01	31.5503604498482
2001-02-01	29.2939297729373
2001-03-01	28.9923756982088
2001-04-01	28.0791747245669
2001-05-01	28.5460967894068
2001-06-01	28.3344373500768
2001-07-01	28.8823863961920
2001-08-01	28.7955031919021
2001-09-01	27.8616309534133
2001-10-01	28.6159138982149
2001-11-01	28.7462544665345
2001-12-01	28.8960038555038
2002-01-01	30.0403610370165
2002-02-01	29.0150167642218
2002-03-01	28.6618773207809
2002-04-01	29.0247439719921
2002-05-01	29.0358030351991
2002-06-01	28.2240913096298
2002-07-01	28.6098424459872
2002-08-01	28.3376041627540
2002-09-01	27.0625203967804
2002-10-01	28.3485575379642
2002-11-01	27.5638346827992
2002-12-01	27.3298988837703
2003-01-01	28.5438424069700
2003-02-01	26.9185714877374
2003-03-01	27.0482294765809
2003-04-01	27.1720909667999
2003-05-01	26.9531282826352
2003-06-01	27.1622795497712
2003-07-01	27.9574164619563
2003-08-01	27.8706098469540
2003-09-01	26.5205541191250
2003-10-01	27.9005976342333
2003-11-01	27.9914206737975
2003-12-01	28.0612859276875
2004-01-01	29.8750347335588
2004-02-01	28.4172171249195
2004-03-01	28.0853379861607
2004-04-01	28.3724275700804
2004-05-01	28.1198059097773
2004-06-01	28.1167851200068
2004-07-01	28.3996555172435
2004-08-01	28.2472300886744
2004-09-01	27.2993081008485
2004-10-01	27.7261783846688
2004-11-01	27.5920764268876
2004-12-01	27.4475115370567
2005-01-01	28.7595266598622
2005-02-01	26.6847051245911
2005-03-01	26.0038100786605
2005-04-01	26.3976022834383
2005-05-01	25.8510066285835
2005-06-01	25.8900097027942
2005-07-01	26.3723684183188
2005-08-01	26.3355391186010
2005-09-01	25.3290074514453
2005-10-01	26.0932369287384
2005-11-01	26.2093382459385
2005-12-01	25.9589588293648
2006-01-01	27.5936027311239
2006-02-01	26.3636300480469
2006-03-01	25.8329110529566
2006-04-01	25.9896328858225
2006-05-01	25.3061320526671
2006-06-01	25.3612785671284
2006-07-01	25.9190237991922
2006-08-01	26.0278432985451
2006-09-01	24.4644104528899
2006-10-01	25.9147002950190
2006-11-01	25.6425096629275
2006-12-01	25.0445298044331
2007-01-01	27.1036893125383
2007-02-01	25.3010080364837
2007-03-01	24.9823663232308
2007-04-01	25.6233922203114
2007-05-01	25.3823440533680
2007-06-01	25.0500770484918
2007-07-01	25.4252966760865
2007-08-01	25.4660043251432
2007-09-01	24.0322502567029
2007-10-01	24.8618042925272
2007-11-01	24.8379560779079
2007-12-01	24.5168338469180
2008-01-01	26.4913235231261
2008-02-01	24.6101296562214
2008-03-01	24.4560139962159
2008-04-01	24.5051512072679
2008-05-01	24.5240506590991
2008-06-01	24.4023480468450
2008-07-01	24.7485752612332
2008-08-01	24.7485243826580
2008-09-01	24.0015634676463
2008-10-01	24.4997087991142
2008-11-01	24.4350978724155
2008-12-01	24.0370213253765
2009-01-01	25.5961061603987
2009-02-01	23.4833649577216
2009-03-01	23.7380440951337
2009-04-01	23.9878184540303
2009-05-01	23.7640779156951
2009-06-01	24.0988274976573
2009-07-01	24.5107898932745
2009-08-01	24.8961694419397
2009-09-01	23.9065272118418
2009-10-01	24.9474529077801
2009-11-01	25.3411206379603
2009-12-01	25.1357903098522
2010-01-01	26.4167040013571
2010-02-01	25.4240501973918
2010-03-01	25.2550069865129
2010-04-01	25.2310690866021
2010-05-01	25.0001516220347
2010-06-01	24.6216409412356
2010-07-01	24.8406842723643
2010-08-01	24.8560015170268
2010-09-01	23.6703283164131
2010-10-01	24.2942363190268
2010-11-01	24.2910761881418
2010-12-01	24.3599809885932
2011-01-01	25.9048530679114
2011-02-01	24.7193699270759
2011-03-01	23.9925502251603
2011-04-01	24.4130755093887
2011-05-01	24.1576137442473
2011-06-01	24.0850757202810
2011-07-01	24.2353882428305
2011-08-01	24.7489171392943
2011-09-01	23.3893869783597
2011-10-01	24.3159288424971
2011-11-01	24.2872130633442
2011-12-01	24.1255327478091
2012-01-01	26.2465944130551
2012-02-01	24.6717250270219
2012-03-01	23.8868437318659
2012-04-01	24.6094812377039
2012-05-01	23.9960973094974
2012-06-01	24.4222465196056
2012-07-01	24.5217365112000
2012-08-01	24.8002598232759
2012-09-01	23.2232092819031
2012-10-01	24.2988298889109
2012-11-01	24.1723646347416
2012-12-01	24.3681944095680
2013-01-01	25.6417599172028
2013-02-01	23.9669948514697
2013-03-01	23.6634864594761
2013-04-01	23.8333358536904
2013-05-01	24.0075201972013
2013-06-01	23.7843807497670
2013-07-01	24.4841967725812
2013-08-01	24.7173344960273
2013-09-01	23.4898457247773
2013-10-01	24.0636092037969
2013-11-01	24.3879069865617
2013-12-01	24.3307574774674
2014-01-01	25.5708634358424
2014-02-01	23.8015599075302
2014-03-01	23.5316794143749
2014-04-01	24.1341457218197
2014-05-01	23.9387494718005
2014-06-01	23.9772379502729
2014-07-01	24.2700124810114
2014-08-01	23.9229574310580
2014-09-01	24.0065066420928
2014-10-01	24.0651603744737
2014-11-01	24.4408479736004
2014-12-01	23.9014076018869
2015-01-01	25.3728820018295
2015-02-01	23.1598562804674
2015-03-01	23.3066369460529
2015-04-01	23.4770479319900
2015-05-01	23.1349784147364
2015-06-01	23.3961578284101
2015-07-01	23.4428200967182
2015-08-01	23.3588138099000
2015-09-01	23.2443525424733
2015-10-01	23.3388252650685
2015-11-01	22.8366808752623
2015-12-01	23.0127247003264
2016-01-01	24.4332847342706
2016-02-01	22.5485128450103
2016-03-01	22.9154973684048
2016-04-01	23.1222853541253
2016-05-01	22.8121570906976
2016-06-01	22.8705237412231
2016-07-01	23.0591369347190
2016-08-01	23.5158572989825
2016-09-01	23.1191152782986
2016-10-01	23.4047372021851
2016-11-01	22.8003119872364
2016-12-01	22.9014014881979
2017-01-01	24.6758805585514
2017-02-01	22.6322047615107
2017-03-01	22.3513912213707
2017-04-01	22.3047004171433
2017-05-01	22.2668621427979
2017-06-01	22.1888004089731
2017-07-01	22.5079585245915
2017-08-01	22.4149387100850
2017-09-01	22.1570674784274
2017-10-01	21.9625437511524
2017-11-01	21.3814182815516
2017-12-01	20.9204785384603
2018-01-01	22.5056093295140
2018-02-01	20.9470589810912
2018-03-01	20.9321611127385
2018-04-01	21.0539427229174
2018-05-01	21.2261582189306
2018-06-01	21.1115611618355
2018-07-01	21.5354762580374
2018-08-01	21.7130378597825
2018-09-01	21.6875547436537