Month	Percent
1978-01-01	45.0023353573097
1978-02-01	45.2508751458576
1978-03-01	46.4844662462042
1978-04-01	48.2484820177487
1978-05-01	50.1164958061510
1978-06-01	50.6164224238195
1978-07-01	49.6156533892383
1978-08-01	49.0223463687151
1978-09-01	49.2085661080074
1978-10-01	49.5003485940042
1978-11-01	48.5946573751452
1978-12-01	47.4564459930314
1979-01-01	46.4965197215777
1979-02-01	46.0379981464319
1979-03-01	46.8626996990044
1979-04-01	48.8199907450254
1979-05-01	50.1153668666359
1979-06-01	50.1847575057737
1979-07-01	49.8844197873324
1979-08-01	49.6308260267651
1979-09-01	49.6197280479373
1979-10-01	49.8387839705205
1979-11-01	48.7580496780129
1979-12-01	47.2305217191450
1980-01-01	45.9577400091870
1980-02-01	46.0867569428506
1980-03-01	46.9617060307269
1980-04-01	49.1393160431490
1980-05-01	50.0572737686140
1980-06-01	50.5376344086022
1980-07-01	50.2858449576950
1980-08-01	49.9315381104519
1980-09-01	50.0113921166553
1980-10-01	49.4190020505810
1980-11-01	48.6209254615911
1980-12-01	47.4151673878388
1981-01-01	46.0490463215259
1981-02-01	45.6980703745743
1981-03-01	46.9012485811578
1981-04-01	49.3535949194829
1981-05-01	50.0680272108844
1981-06-01	49.9660095173351
1981-07-01	49.8527079084523
1981-08-01	49.5022624434389
1981-09-01	49.6381727725011
1981-10-01	49.7963800904977
1981-11-01	49.4109651110104
1981-12-01	48.5720761559384
1982-01-01	46.9166478427829
1982-02-01	46.8142792589245
1982-03-01	47.8898668472128
1982-04-01	49.2903807163776
1982-05-01	50.5173189383716
1982-06-01	50.4832546639694
1982-07-01	49.8426966292135
1982-08-01	49.4510419000672
1982-09-01	49.7536945812808
1982-10-01	50.1452513966480
1982-11-01	49.3521000893655
1982-12-01	48.9371223987469
1983-01-01	47.7191413237925
1983-02-01	47.7425122932499
1983-03-01	48.9499553172475
1983-04-01	50.5357142857143
1983-05-01	51.5158270173874
1983-06-01	51.3477389173535
1983-07-01	50.9908706301492
1983-08-01	50.7894151656660
1983-09-01	51.0548523206751
1983-10-01	51.1762094984465
1983-11-01	50.1441561321801
1983-12-01	48.6252771618625
1984-01-01	47.0549158547387
1984-02-01	47.0770593445527
1984-03-01	48.5948218632441
1984-04-01	50.5083996463307
1984-05-01	51.0375275938190
1984-06-01	51.4008382969336
1984-07-01	51.1356119073870
1984-08-01	50.6605019815059
1984-09-01	51.4078310602728
1984-10-01	51.3519454825236
1984-11-01	50.2526917161064
1984-12-01	48.9674868189807
1985-01-01	47.9929809168677
1985-02-01	48.0482456140351
1985-03-01	48.8601490574310
1985-04-01	50.6786339754816
1985-05-01	51.2680367293398
1985-06-01	51.0921799912626
1985-07-01	51.0043668122271
1985-08-01	50.6213211249183
1985-09-01	50.9475059899804
1985-10-01	50.8924684370918
1985-11-01	49.9456403565993
1985-12-01	48.2383645063071
1986-01-01	47.9374728614850
1986-02-01	48.1111593573600
1986-03-01	48.8826209589933
1986-04-01	50.5201560468140
1986-05-01	50.8331529971868
1986-06-01	51.2000000000000
1986-07-01	51.2321660181582
1986-08-01	50.4747518342684
1986-09-01	50.5821474773609
1986-10-01	50.6675279931094
1986-11-01	49.9031633311814
1986-12-01	48.7300904003444
1987-01-01	47.6794155565105
1987-02-01	47.6691729323308
1987-03-01	48.7872934106031
1987-04-01	50.6114567689337
1987-05-01	51.3606170987787
1987-06-01	51.3056506849315
1987-07-01	50.9413778348310
1987-08-01	50.8011108737449
1987-09-01	50.8753202391119
1987-10-01	50.7357645553423
1987-11-01	50.4899872177248
1987-12-01	49.8081841432225
1988-01-01	48.6176095278605
1988-02-01	48.2663263135503
1988-03-01	49.2346938775510
1988-04-01	51.1361223189637
1988-05-01	52.0144189991518
1988-06-01	51.8235793044953
1988-07-01	51.7592200084782
1988-08-01	51.0894859318807
1988-09-01	51.2360025353898
1988-10-01	51.1190878378378
1988-11-01	50.4850274145930
1988-12-01	49.8945147679325
1989-01-01	48.9048020219040
1989-02-01	49.0832455216017
1989-03-01	50.0526426616130
1989-04-01	51.7894736842105
1989-05-01	52.7731092436975
1989-06-01	53.1066330814442
1989-07-01	52.7188746588285
1989-08-01	52.0326906957251
1989-09-01	52.1347844286312
1989-10-01	52.0493517356754
1989-11-01	51.7234175893044
1989-12-01	51.1185448463308
1990-01-01	49.8956158663883
1990-02-01	50.2192524535394
1990-03-01	51.5758714255896
1990-04-01	52.7951606174385
1990-05-01	53.4665833853841
1990-06-01	53.4956304619226
1990-07-01	53.3111203665140
1990-08-01	52.7015793848712
1990-09-01	52.9887920298879
1990-10-01	52.6654221115951
1990-11-01	52.4253731343284
1990-12-01	51.7834923268353
1991-01-01	50.9734879867440
1991-02-01	51.0051813471503
1991-03-01	51.6556291390728
1991-04-01	53.2671629445823
1991-05-01	54.1193475118728
1991-06-01	54.3446852425181
1991-07-01	53.8731667010948
1991-08-01	53.6922442244224
1991-09-01	53.4912461380021
1991-10-01	53.2427424336010
1991-11-01	53.2304526748971
1991-12-01	52.9036243822076
1992-01-01	51.0791366906475
1992-02-01	51.7475328947368
1992-03-01	52.1694427308246
1992-04-01	53.4362139917695
1992-05-01	54.4165981922761
1992-06-01	54.5939294503692
1992-07-01	53.6124794745484
1992-08-01	53.5355605656897
1992-09-01	53.6540429887410
1992-10-01	53.8146860298630
1992-11-01	53.4845697935827
1992-12-01	52.7436527436527
1993-01-01	51.0933987328837
1993-02-01	50.6336876533115
1993-03-01	51.4817085632536
1993-04-01	53.1645569620253
1993-05-01	53.7739698082415
1993-06-01	53.8539967373573
1993-07-01	53.4570671017744
1993-08-01	53.1568228105906
1993-09-01	53.0824008138352
1993-10-01	53.1733116354760
1993-11-01	52.8754318228002
1993-12-01	52.3296032553408
1994-01-01	51.0871774029669
1994-02-01	50.6506710044734
1994-03-01	51.5440877691995
1994-04-01	53.4444218654745
1994-05-01	53.8555194805195
1994-06-01	53.8945233265720
1994-07-01	53.2169677288411
1994-08-01	52.6251773768498
1994-09-01	52.5718914540300
1994-10-01	52.7732793522267
1994-11-01	52.3674625657628
1994-12-01	51.6207455429498
1995-01-01	50.7991098523164
1995-02-01	50.8910490076954
1995-03-01	51.5188335358445
1995-04-01	52.8351559335764
1995-05-01	53.3063700707786
1995-06-01	53.4963621665319
1995-07-01	53.1578947368421
1995-08-01	52.4772497472194
1995-09-01	52.9506871463218
1995-10-01	52.4338517471218
1995-11-01	51.9071644803229
1995-12-01	51.4857489387508
1996-01-01	50.4744599232788
1996-02-01	50.2627324171382
1996-03-01	51.6767676767677
1996-04-01	52.7890056588521
1996-05-01	53.1786074672048
1996-06-01	53.9128680919726
1996-07-01	53.6954765751212
1996-08-01	52.8747226144846
1996-09-01	53.3346766068910
1996-10-01	52.9707955689829
1996-11-01	52.2544283413849
1996-12-01	51.5829804396048
1997-01-01	51.1758793969849
1997-02-01	51.3785469913464
1997-03-01	52.0112630732100
1997-04-01	53.1469937663382
1997-05-01	53.5341365461847
1997-06-01	54.2553191489362
1997-07-01	54.0904522613065
1997-08-01	53.3534136546185
1997-09-01	53.6394626027672
1997-10-01	53.5578272198838
1997-11-01	52.5250501002004
1997-12-01	52.2690763052209
1998-01-01	52.0144317498497
1998-02-01	51.4337276919992
1998-03-01	51.9446672012831
1998-04-01	52.9164161154540
1998-05-01	53.6458333333333
1998-06-01	53.5242290748899
1998-07-01	53.1356441594871
1998-08-01	52.9623698959167
1998-09-01	52.7410964385754
1998-10-01	52.6189524190324
1998-11-01	52.0191923230708
1998-12-01	51.4520328459844
1999-01-01	50.6600000000000
1999-02-01	50.3401360544218
1999-03-01	51.2404961984794
1999-04-01	52.5010004001601
1999-05-01	53.0187924830068
1999-06-01	52.6800000000000
1999-07-01	52.3800000000000
1999-08-01	52.5589764094362
1999-09-01	52.3980815347722
1999-10-01	52.0870780906730
1999-11-01	52.0567092651757
1999-12-01	51.2892264641215
2000-01-01	50.5889399081653
2000-02-01	50.2496504893150
2000-03-01	50.6695982410554
2000-04-01	52.0800000000000
2000-05-01	52.5064909127222
2000-06-01	52.5853463765223
2000-07-01	52.5284829102538
2000-08-01	52.1374350779065
2000-09-01	52.1166134185304
2000-10-01	52.3448413490321
2000-11-01	52.2641133054059
2000-12-01	51.5465974855318
2001-01-01	51.0978043912176
2001-02-01	51.2302460492098
2001-03-01	51.1995201919232
2001-04-01	51.8696260747850
2001-05-01	52.4570515381542
2001-06-01	52.6462951867386
2001-07-01	52.3286028382970
2001-08-01	51.7978425888933
2001-09-01	51.4673587542424
2001-10-01	51.8555466879489
2001-11-01	52.2328548644338
2001-12-01	51.3475743661409
2002-01-01	50.2598960415834
2002-02-01	50.1501501501502
2002-03-01	50.6207448938726
2002-04-01	51.1818910256410
2002-05-01	51.4708825295177
2002-06-01	51.7400000000000
2002-07-01	51.6219463356027
2002-08-01	51.4514514514514
2002-09-01	51.5303060612122
2002-10-01	51.5787370103917
2002-11-01	51.8207282913165
2002-12-01	50.9619238476954
2003-01-01	49.8798076923077
2003-02-01	49.8695564920730
2003-03-01	50.7319029476639
2003-04-01	51.1529977942651
2003-05-01	51.6426282051282
2003-06-01	52.4724724724725
2003-07-01	52.0737327188940
2003-08-01	51.6032064128257
2003-09-01	51.6529753556402
2003-10-01	51.7130835503907
2003-11-01	51.4325786415548
2003-12-01	51.2048192771084
2004-01-01	50.3611556982344
2004-02-01	50.5121510343442
2004-03-01	51.3046969088719
2004-04-01	51.8860353130016
2004-05-01	52.1171984748144
2004-06-01	52.3110932475884
2004-07-01	52.4623115577889
2004-08-01	52.4537409493162
2004-09-01	52.4135156878520
2004-10-01	52.3216080402010
2004-11-01	51.6582914572864
2004-12-01	51.3388363197101
2005-01-01	51.0860820595334
2005-02-01	50.9156771986315
2005-03-01	51.2283527990334
2005-04-01	52.3089332526719
2005-05-01	53.2836422240129
2005-06-01	53.1344486998589
2005-07-01	53.0040322580645
2005-08-01	52.8130671506352
2005-09-01	53.0550514216576
2005-10-01	52.8842275110932
2005-11-01	52.0169423154498
2005-12-01	51.7262265293761
2006-01-01	51.5757575757576
2006-02-01	51.8106413109448
2006-03-01	51.7492416582406
2006-04-01	52.5931928687196
2006-05-01	53.5829959514170
2006-06-01	53.3670374115268
2006-07-01	53.2698926908281
2006-08-01	53.3319829856188
2006-09-01	53.4332590642090
2006-10-01	53.6560664371076
2006-11-01	53.4926098400486
2006-12-01	52.5952960259530
2007-01-01	51.6050386021942
2007-02-01	51.9007928440740
2007-03-01	52.4613506916192
2007-04-01	53.6034201954397
2007-05-01	54.1717541717542
2007-06-01	54.1497152156225
2007-07-01	53.6848534201954
2007-08-01	53.4514355528406
2007-09-01	53.2993890020367
2007-10-01	53.3917294764718
2007-11-01	53.9543416225030
2007-12-01	53.4964322120285
2008-01-01	52.5005103082262
2008-02-01	52.1765787860208
2008-03-01	52.7703946023308
2008-04-01	53.8555941910411
2008-05-01	54.1922290388548
2008-06-01	54.2757774140753
2008-07-01	53.7737778686848
2008-08-01	53.5012285012285
2008-09-01	53.5421785421785
2008-10-01	53.4412126177796
2008-11-01	53.8225046116007
2008-12-01	53.2595325953260
2009-01-01	52.9460069800862
2009-02-01	52.8553820870994
2009-03-01	52.5590955806783
2009-04-01	53.5471930906848
2009-05-01	53.7528274727534
2009-06-01	53.6911371581328
2009-07-01	53.4238124614436
2009-08-01	53.7448559670782
2009-09-01	53.8588186869726
2009-10-01	53.3456866378423
2009-11-01	53.5103973646284
2009-12-01	53.0902348578492
2010-01-01	52.9193315452857
2010-02-01	53.0152829409335
2010-03-01	53.0177759404713
2010-04-01	53.6282819929708
2010-05-01	54.0831093653091
2010-06-01	53.6776859504132
2010-07-01	53.8159255429162
2010-08-01	53.8477451386016
2010-09-01	54.5322847682119
2010-10-01	54.2650103519669
2010-11-01	53.9768019884010
2010-12-01	53.6883547451305
2011-01-01	53.4218166735794
2011-02-01	53.5410176531672
2011-03-01	53.2261568542255
2011-04-01	53.9230602043034
2011-05-01	54.2490762877635
2011-06-01	54.0552293976952
2011-07-01	53.7508153946510
2011-08-01	53.7303664921466
2011-09-01	54.4620517097581
2011-10-01	54.3881592662080
2011-11-01	54.3786488740617
2011-12-01	53.9103232533889
2012-01-01	53.0277892990460
2012-02-01	53.4661685346617
2012-03-01	53.4898213543830
2012-04-01	54.2394014962594
2012-05-01	54.5549084858569
2012-06-01	54.4603867747973
2012-07-01	54.2940320232897
2012-08-01	54.4735746982938
2012-09-01	54.6930280957336
2012-10-01	54.7346514047867
2012-11-01	54.8333333333333
2012-12-01	54.1987914148781
2013-01-01	54.3423799582464
2013-02-01	54.7106747440986
2013-03-01	54.9864102028016
2013-04-01	55.5207026348808
2013-05-01	55.6485355648536
2013-06-01	55.4811715481172
2013-07-01	55.4486509098515
2013-08-01	55.5346306758736
2013-09-01	56.1087866108787
2013-10-01	56.3480443421878
2013-11-01	56.5390249006068
2013-12-01	56.1414521866499
2014-01-01	55.3646269907795
2014-02-01	55.5485630375498
2014-03-01	55.5835432409740
2014-04-01	56.0151165231997
2014-05-01	56.5281276238455
2014-06-01	56.6841552990556
2014-07-01	56.4414603441041
2014-08-01	56.4167191766436
2014-09-01	56.8998109640832
2014-10-01	57.1248423707440
2014-11-01	57.1668768390080
2014-12-01	57.0016820857864
2015-01-01	56.2644767319436
2015-02-01	56.4080944350759
2015-03-01	56.3870151770658
2015-04-01	56.5795023196963
2015-05-01	57.2362869198312
2015-06-01	57.7150084317032
2015-07-01	57.3026593499367
2015-08-01	57.2152968518910
2015-09-01	57.9936642027455
2015-10-01	57.9725448785639
2015-11-01	57.3843228396366
2015-12-01	57.5840913898879
2016-01-01	57.9170194750212
2016-02-01	57.4973488865323
2016-03-01	57.3488865323436
2016-04-01	57.7070063694268
2016-05-01	58.0645161290323
2016-06-01	58.8285229202037
2016-07-01	59.0184831102613
2016-08-01	58.8773123538167
2016-09-01	59.2253670993828
2016-10-01	59.1276595744681
2016-11-01	58.7609112199276
2016-12-01	59.0831556503198
2017-01-01	58.8410737111206
2017-02-01	58.4559607592237
2017-03-01	58.4933845497226
2017-04-01	59.2822046571246
2017-05-01	59.7352690008540
2017-06-01	60.3761487497328
2017-07-01	60.2733874412644
2017-08-01	60.2821718683198
2017-09-01	60.4959384352287
2017-10-01	60.4790419161677
2017-11-01	60.4666095890411
2017-12-01	60.2827763496144
2018-01-01	60.4162196953443
2018-02-01	60.6828430319948
2018-03-01	61.4227380184827
2018-04-01	62.1104663657855
2018-05-01	61.9221672758546
2018-06-01	61.7615467239527
2018-07-01	62.0860215053764
2018-08-01	62.3007324429125
2018-09-01	62.5457678225285