Month	Percent
1978-02-01	45.8837969885843
1978-03-01	46.2434520102456
1978-04-01	45.8299837749877
1978-05-01	45.8457626212938
1978-06-01	45.4857676419062
1978-07-01	45.2817869449580
1978-08-01	45.1460829676481
1978-09-01	44.5509458058653
1978-10-01	44.4079471162487
1978-11-01	43.9392883640332
1978-12-01	44.1516760988120
1979-01-01	43.1608630559000
1979-02-01	43.7239511464872
1979-03-01	43.4784973822717
1979-04-01	43.2225757245428
1979-05-01	43.2458452431686
1979-06-01	43.7911882219665
1979-07-01	43.5922369075976
1979-08-01	43.0904818715226
1979-09-01	43.7503414850530
1979-10-01	43.4184103857772
1979-11-01	43.3465811897286
1979-12-01	43.4100835105363
1980-01-01	42.7437788070438
1980-02-01	43.1170845733528
1980-03-01	43.8482797973625
1980-04-01	43.6604787757303
1980-05-01	44.2790779906876
1980-06-01	43.6374093449524
1980-07-01	44.0063566031168
1980-08-01	43.5109752997050
1980-09-01	44.5012569305246
1980-10-01	43.2442575135694
1980-11-01	43.2801496664640
1980-12-01	43.2400955617586
1981-01-01	42.0694598136870
1981-02-01	42.5459613594846
1981-03-01	42.6229044644512
1981-04-01	42.3805692924683
1981-05-01	42.1020790536146
1981-06-01	42.0100503437437
1981-07-01	42.7837761565052
1981-08-01	42.6525329283267
1981-09-01	43.3321744866082
1981-10-01	43.1358904889566
1981-11-01	42.3597553767345
1981-12-01	42.1377746466684
1982-01-01	41.2846183955764
1982-02-01	41.6099795827580
1982-03-01	42.1166553706633
1982-04-01	41.0352189287155
1982-05-01	40.9758602777819
1982-06-01	40.9273660951407
1982-07-01	40.0924992045365
1982-08-01	39.7039805363644
1982-09-01	41.3557533555735
1982-10-01	41.2204279731904
1982-11-01	40.2052082709589
1982-12-01	40.1225747083850
1983-01-01	38.9559906344060
1983-02-01	40.0535600829196
1983-03-01	40.0428277196012
1983-04-01	39.0810246533865
1983-05-01	38.7642953719585
1983-06-01	38.5822267878682
1983-07-01	39.0038383825564
1983-08-01	38.5288505256521
1983-09-01	39.3044921635859
1983-10-01	38.4556787551734
1983-11-01	38.6305935457535
1983-12-01	39.5636723454959
1984-01-01	37.8536281406812
1984-02-01	39.3492058069695
1984-03-01	39.5037799463853
1984-04-01	39.1354498608484
1984-05-01	38.8459008168806
1984-06-01	39.5305147915905
1984-07-01	39.1554949359473
1984-08-01	38.0682578247196
1984-09-01	39.2386060065532
1984-10-01	38.8146780601142
1984-11-01	38.8743084022708
1984-12-01	38.8345852288199
1985-01-01	37.5342551548789
1985-02-01	38.1848611350864
1985-03-01	38.5054709610676
1985-04-01	37.2369017253869
1985-05-01	37.0642980443653
1985-06-01	37.7597814993253
1985-07-01	37.7531848018418
1985-08-01	37.2594821904605
1985-09-01	39.0398826884742
1985-10-01	38.7750232106342
1985-11-01	39.6116008488904
1985-12-01	39.1762246420863
1986-01-01	38.6650170513988
1986-02-01	38.9800632230869
1986-03-01	39.8400523106427
1986-04-01	39.9789583033831
1986-05-01	39.6001197314077
1986-06-01	39.7266384553959
1986-07-01	38.9996281562028
1986-08-01	38.6597421886575
1986-09-01	39.5733367384900
1986-10-01	39.1590027686373
1986-11-01	39.8478841183718
1986-12-01	39.3766028941999
1987-01-01	38.2212509909295
1987-02-01	39.2462427913444
1987-03-01	40.7654700427511
1987-04-01	39.6219125155452
1987-05-01	39.8831042915124
1987-06-01	39.5199834180738
1987-07-01	39.4594463817743
1987-08-01	38.8125666261887
1987-09-01	39.2599077931407
1987-10-01	39.3533459057953
1987-11-01	38.7970933185705
1987-12-01	39.4092070625717
1988-01-01	38.6243651378015
1988-02-01	39.0590343487388
1988-03-01	40.3399672728279
1988-04-01	39.8870781554480
1988-05-01	39.5965524506536
1988-06-01	40.0016863433914
1988-07-01	39.6809553194947
1988-08-01	39.2874373319024
1988-09-01	40.2089636089433
1988-10-01	39.7051176852368
1988-11-01	40.4326866825286
1988-12-01	40.4283933259410
1989-01-01	38.9008764846338
1989-02-01	40.3827125199038
1989-03-01	41.0392077886529
1989-04-01	40.8565638122677
1989-05-01	41.4741845602035
1989-06-01	41.1465555660383
1989-07-01	40.5481370258706
1989-08-01	40.5384283441306
1989-09-01	42.2321892548702
1989-10-01	41.0670554196017
1989-11-01	41.7434348465489
1989-12-01	40.7757252010402
1990-01-01	39.3816598025134
1990-02-01	40.1392027175015
1990-03-01	40.7131297041496
1990-04-01	40.7244304663634
1990-05-01	41.1472916838445
1990-06-01	41.4846940818800
1990-07-01	42.0343571614038
1990-08-01	41.7596491170906
1990-09-01	43.1018873032997
1990-10-01	42.5543272651228
1990-11-01	42.8063250555790
1990-12-01	42.1760717106364
1991-01-01	40.3888463509713
1991-02-01	41.4330662404281
1991-03-01	40.5876755053268
1991-04-01	40.3150098941678
1991-05-01	40.5447004917387
1991-06-01	40.4583607542987
1991-07-01	38.8130292704035
1991-08-01	39.0550885633721
1991-09-01	40.1370907231258
1991-10-01	39.6813509587013
1991-11-01	40.1872903769862
1991-12-01	40.1820847383812
1992-01-01	38.8748766309589
1992-02-01	39.8061438702256
1992-03-01	39.6206269248215
1992-04-01	39.5464283215293
1992-05-01	39.2580682699185
1992-06-01	39.9795128717137
1992-07-01	39.8035687954534
1992-08-01	39.0912398656474
1992-09-01	39.8513060238732
1992-10-01	39.3555303710037
1992-11-01	38.5209892964800
1992-12-01	38.3750637699060
1993-01-01	37.7157007990602
1993-02-01	37.5688322442071
1993-03-01	38.8898146174749
1993-04-01	38.1113921482626
1993-05-01	38.6568142007368
1993-06-01	38.2040450408701
1993-07-01	38.5491315744155
1993-08-01	37.5653033483150
1993-09-01	39.6104527899015
1993-10-01	39.2795054883728
1993-11-01	39.4516252399492
1993-12-01	39.1759262043310
1994-01-01	38.1671155271153
1994-02-01	39.2326896071772
1994-03-01	40.3484416125237
1994-04-01	40.5598528049152
1994-05-01	40.8782617917736
1994-06-01	40.3363122663980
1994-07-01	40.4405980393408
1994-08-01	39.7129654598983
1994-09-01	41.5259628697041
1994-10-01	40.5423013334619
1994-11-01	40.8275701009604
1994-12-01	40.9188976192736
1995-01-01	39.5845658443192
1995-02-01	40.8452469550743
1995-03-01	41.6159229110958
1995-04-01	42.0820796416896
1995-05-01	41.7232769272182
1995-06-01	41.4322021406123
1995-07-01	41.4142891441006
1995-08-01	41.1832460615452
1995-09-01	42.5782701825048
1995-10-01	41.8068493865349
1995-11-01	42.5440662320304
1995-12-01	42.4645976906297
1996-01-01	41.1594121151897
1996-02-01	41.7773295892696
1996-03-01	42.6535768664530
1996-04-01	41.9759013653248
1996-05-01	42.2463892102790
1996-06-01	42.7714924448354
1996-07-01	42.3746461106076
1996-08-01	41.9398810513646
1996-09-01	42.9245566015629
1996-10-01	42.5948344378151
1996-11-01	42.3676516691569
1996-12-01	42.6115377586345
1997-01-01	41.4281662450990
1997-02-01	42.4794735018851
1997-03-01	43.2680672286120
1997-04-01	43.1474941494621
1997-05-01	42.4435299268845
1997-06-01	42.8803384930243
1997-07-01	42.5541385865100
1997-08-01	41.9163964168682
1997-09-01	43.5327016145074
1997-10-01	42.0527663592612
1997-11-01	43.6275320381907
1997-12-01	43.2163679108973
1998-01-01	41.7271344171256
1998-02-01	42.2149964748045
1998-03-01	43.1858194250784
1998-04-01	43.6837506008727
1998-05-01	43.9611799573439
1998-06-01	44.3081318701020
1998-07-01	44.0811134364580
1998-08-01	43.5598303556290
1998-09-01	45.1579565379531
1998-10-01	43.6665564896841
1998-11-01	43.9538338571857
1998-12-01	43.9148371741649
1999-01-01	42.6850174609410
1999-02-01	42.6434706866905
1999-03-01	43.1205594338393
1999-04-01	43.8081725974034
1999-05-01	43.1994039733518
1999-06-01	44.0254526645018
1999-07-01	44.1997876730324
1999-08-01	44.0129108535654
1999-09-01	45.4225001619974
1999-10-01	44.8769221923299
1999-11-01	45.3177139399130
1999-12-01	44.9880928677606
2000-01-01	43.8315467434045
2000-02-01	44.7156850379201
2000-03-01	45.4167992494746
2000-04-01	46.0706977360911
2000-05-01	46.2486164773688
2000-06-01	46.2564410280325
2000-07-01	46.6215438135740
2000-08-01	46.8476027440825
2000-09-01	47.2875749168094
2000-10-01	46.8080371603188
2000-11-01	46.2643317283438
2000-12-01	46.2034967574549
2001-01-01	44.5807098467919
2001-02-01	45.9881556848337
2001-03-01	46.2975634240990
2001-04-01	46.9900022803730
2001-05-01	46.7492174000363
2001-06-01	47.1295648309485
2001-07-01	46.5148349394087
2001-08-01	46.1550462233190
2001-09-01	47.7069343595512
2001-10-01	47.4746876438763
2001-11-01	47.4652603976724
2001-12-01	47.5646284665780
2002-01-01	46.4964848476450
2002-02-01	48.3115695826706
2002-03-01	48.5711577868798
2002-04-01	48.5450265412157
2002-05-01	48.3888453602523
2002-06-01	48.7674061055274
2002-07-01	47.9260568155535
2002-08-01	48.0028139336770
2002-09-01	49.2103122755492
2002-10-01	48.7201614156596
2002-11-01	49.0260639956752
2002-12-01	49.6127981836168
2003-01-01	48.5356464225960
2003-02-01	49.8482492007348
2003-03-01	50.3487802817909
2003-04-01	50.0020157557665
2003-05-01	50.7392663061158
2003-06-01	50.6938727985233
2003-07-01	50.3470126106703
2003-08-01	50.0749457951189
2003-09-01	51.0566151183644
2003-10-01	50.3336326405973
2003-11-01	50.5524850932692
2003-12-01	50.8272487589182
2004-01-01	49.0461865440025
2004-02-01	50.4881003901360
2004-03-01	51.2924068606831
2004-04-01	50.8075803104427
2004-05-01	51.9098526289623
2004-06-01	52.4520622131879
2004-07-01	52.2142269177653
2004-08-01	51.6387499958228
2004-09-01	53.1799422200540
2004-10-01	52.8106038763187
2004-11-01	52.2708571809525
2004-12-01	52.2342214956358
2005-01-01	51.3235322301984
2005-02-01	51.6553772196137
2005-03-01	53.1591735285703
2005-04-01	53.2668250150778
2005-05-01	53.1633720358299
2005-06-01	53.7695606287533
2005-07-01	53.9422947918368
2005-08-01	53.7405076021164
2005-09-01	54.4848218692944
2005-10-01	54.4434027677727
2005-11-01	54.3345605661177
2005-12-01	54.3255271844395
2006-01-01	52.7747817496659
2006-02-01	54.3648698865432
2006-03-01	55.5661605212919
2006-04-01	55.1682149645820
2006-05-01	55.3053674179566
2006-06-01	55.5339906359421
2006-07-01	55.5009043630903
2006-08-01	55.8834087985639
2006-09-01	56.8484729897037
2006-10-01	56.2499209684276
2006-11-01	55.7089499455810
2006-12-01	56.0680441999160
2007-01-01	54.7210181714145
2007-02-01	55.4630622579554
2007-03-01	56.4050498141653
2007-04-01	56.3510971115354
2007-05-01	56.8931716673767
2007-06-01	57.3361516867195
2007-07-01	56.7533297679645
2007-08-01	56.7980313837744
2007-09-01	57.4325165858857
2007-10-01	56.3674307104999
2007-11-01	56.8253203080632
2007-12-01	56.7321574678728
2008-01-01	55.4477592145214
2008-02-01	56.0485631288893
2008-03-01	56.1608680714903
2008-04-01	56.9993665495156
2008-05-01	57.4488878389688
2008-06-01	57.9152442567406
2008-07-01	57.4609273493117
2008-08-01	57.8405319589988
2008-09-01	58.9639674991594
2008-10-01	57.7487907946729
2008-11-01	58.0029998688999
2008-12-01	57.7079739121111
2009-01-01	57.0369723058717
2009-02-01	58.9144200476992
2009-03-01	59.0240815641051
2009-04-01	58.8173713724652
2009-05-01	59.1693828733749
2009-06-01	59.3977422520353
2009-07-01	58.9880537448939
2009-08-01	58.8297826975863
2009-09-01	59.1512670625584
2009-10-01	58.9698409520623
2009-11-01	59.6371120437758
2009-12-01	60.2352467768630
2010-01-01	58.4341732347035
2010-02-01	59.7692749003470
2010-03-01	60.1507119354487
2010-04-01	60.3548022224764
2010-05-01	60.1994793884196
2010-06-01	60.5681228890512
2010-07-01	60.6262871729154
2010-08-01	60.5386340360534
2010-09-01	61.7055258802093
2010-10-01	61.5057587050469
2010-11-01	61.6871894450505
2010-12-01	61.6941207889305
2011-01-01	59.8011991635980
2011-02-01	60.8371125025581
2011-03-01	61.6670167408689
2011-04-01	60.8607023857829
2011-05-01	61.1965663350190
2011-06-01	61.7771617904857
2011-07-01	61.3525866522253
2011-08-01	61.1573557874286
2011-09-01	61.8280534930892
2011-10-01	60.9630608159956
2011-11-01	61.1687423073185
2011-12-01	61.2785952826517
2012-01-01	59.9387088486948
2012-02-01	60.3781691314972
2012-03-01	61.5173621990507
2012-04-01	61.6828376453268
2012-05-01	61.8042625185627
2012-06-01	61.5624764588557
2012-07-01	61.9044715605509
2012-08-01	61.1325875170913
2012-09-01	61.8552669726941
2012-10-01	62.0394835461861
2012-11-01	61.6224462185190
2012-12-01	61.7157461657549
2013-01-01	59.7857920195551
2013-02-01	61.7263344006502
2013-03-01	61.7390098938150
2013-04-01	62.4138833660135
2013-05-01	62.0616024361679
2013-06-01	61.7433260998135
2013-07-01	60.9471255950340
2013-08-01	61.1574214916213
2013-09-01	61.6939767462521
2013-10-01	61.3986374760885
2013-11-01	61.1045274356867
2013-12-01	60.9984742162067
2014-01-01	59.2800022391048
2014-02-01	60.6058215753222
2014-03-01	61.1502425929921
2014-04-01	61.2046401300886
2014-05-01	61.5200529010035
2014-06-01	62.0810861150192
2014-07-01	62.3888729243219
2014-08-01	62.5191619956584
2014-09-01	61.7004718558811
2014-10-01	61.6064195889888
2014-11-01	61.3983919666432
2014-12-01	61.5619564181042
2015-01-01	60.3761211334880
2015-02-01	61.5579456698086
2015-03-01	61.6095792352522
2015-04-01	62.0611294999950
2015-05-01	62.3636551713764
2015-06-01	62.2574728813888
2015-07-01	62.1800203449646
2015-08-01	61.6142581979023
2015-09-01	61.9740309848554
2015-10-01	63.0507651613415
2015-11-01	63.3909622784073
2015-12-01	62.9172760013730
2016-01-01	61.7761549629049
2016-02-01	62.9893809776026
2016-03-01	63.1146305240224
2016-04-01	62.8750201086553
2016-05-01	62.9023865214781
2016-06-01	62.6084934337035
2016-07-01	61.8572188377025
2016-08-01	61.9878227372873
2016-09-01	61.6727744764137
2016-10-01	62.1416452924014
2016-11-01	62.8966342817859
2016-12-01	62.7660628601921
2017-01-01	61.5543158429363
2017-02-01	62.6637521271477
2017-03-01	63.0907423115757
2017-04-01	63.3742214630705
2017-05-01	64.2422479301870
2017-06-01	64.1817779041066
2017-07-01	63.4768823914826
2017-08-01	63.8182318501829
2017-09-01	64.1169796249550
2017-10-01	63.8954335755402
2017-11-01	64.5760330696998
2017-12-01	64.0065978287059
2018-01-01	62.4898153185008
2018-02-01	64.0803511360961
2018-03-01	63.4234894021870
2018-04-01	63.0243204480618
2018-05-01	63.6785350588054
2018-06-01	63.9421208920366
2018-07-01	63.6608327494808
2018-08-01	64.1981975497861
2018-09-01	64.2704563232747