Month	Percent
1978-02-01	74.8081537784923
1978-03-01	74.6249722874871
1978-04-01	73.6091815247755
1978-05-01	73.2182727495448
1978-06-01	72.9460679379256
1978-07-01	72.5321379986255
1978-08-01	71.9527792257970
1978-09-01	71.8350391425594
1978-10-01	70.8498513377717
1978-11-01	70.0984812882507
1978-12-01	70.8657169583812
1979-01-01	69.6497921248629
1979-02-01	70.4832999748231
1979-03-01	69.5089795445872
1979-04-01	69.6775853768391
1979-05-01	69.4374087035496
1979-06-01	70.3862060712209
1979-07-01	70.5089516612167
1979-08-01	69.5052134289401
1979-09-01	70.5716154875095
1979-10-01	70.0379321817561
1979-11-01	69.4027380333877
1979-12-01	70.0374944843190
1980-01-01	69.1416491781948
1980-02-01	68.8395619232023
1980-03-01	69.5813096775776
1980-04-01	69.1803624251092
1980-05-01	70.0322443718430
1980-06-01	69.1461674203157
1980-07-01	69.0637060391052
1980-08-01	68.8466198714881
1980-09-01	69.7177923742835
1980-10-01	68.1180907985896
1980-11-01	68.2035158353704
1980-12-01	68.4096858253123
1981-01-01	66.7943114012934
1981-02-01	67.8335205185164
1981-03-01	68.0117505978251
1981-04-01	67.5610945491140
1981-05-01	67.1490836464551
1981-06-01	67.4113903648334
1981-07-01	68.1953518239765
1981-08-01	67.8844532983973
1981-09-01	68.7817057245473
1981-10-01	68.0297149962395
1981-11-01	67.2421057369493
1981-12-01	66.3847922005144
1982-01-01	66.2828597193385
1982-02-01	66.4365674895301
1982-03-01	67.1446763539014
1982-04-01	65.2855178602600
1982-05-01	65.9181256398665
1982-06-01	65.5905787677964
1982-07-01	65.0121095798765
1982-08-01	64.8837783420502
1982-09-01	67.0442898698527
1982-10-01	65.7643480109392
1982-11-01	64.8150106585485
1982-12-01	64.2233233194162
1983-01-01	63.1902234160664
1983-02-01	64.1456719541316
1983-03-01	63.8309937327522
1983-04-01	63.7089652261158
1983-05-01	63.1713881832300
1983-06-01	62.7355165889477
1983-07-01	62.9536438193717
1983-08-01	61.9621951814447
1983-09-01	63.7884114103186
1983-10-01	62.2255813876140
1983-11-01	62.2255617732527
1983-12-01	62.9952085697749
1984-01-01	61.8741872593580
1984-02-01	62.7489843697858
1984-03-01	63.1959463484159
1984-04-01	62.6351039822762
1984-05-01	62.0834501425355
1984-06-01	63.2284150897500
1984-07-01	62.1113415093574
1984-08-01	61.1470645235687
1984-09-01	62.7852435044920
1984-10-01	61.6734822481213
1984-11-01	61.4302560387208
1984-12-01	61.3000265624835
1985-01-01	60.2665848853678
1985-02-01	61.0482274996373
1985-03-01	61.6853701317478
1985-04-01	60.1380810865619
1985-05-01	60.0848182849407
1985-06-01	60.8320257959126
1985-07-01	60.5742215418820
1985-08-01	60.4268983672758
1985-09-01	62.9500128623966
1985-10-01	62.1774565296840
1985-11-01	63.5236484866789
1985-12-01	62.8022278956082
1986-01-01	61.7975688705017
1986-02-01	61.3879172506172
1986-03-01	62.1602095229671
1986-04-01	62.3425055852976
1986-05-01	61.8309558846200
1986-06-01	62.5183590993952
1986-07-01	61.1786063420686
1986-08-01	61.0868309521515
1986-09-01	62.4868738318526
1986-10-01	61.8031158343766
1986-11-01	62.5297131805434
1986-12-01	62.2153418648704
1987-01-01	60.2441883138270
1987-02-01	61.5589812097724
1987-03-01	63.0100784210094
1987-04-01	62.0166339508576
1987-05-01	61.4740912979083
1987-06-01	61.5129584441714
1987-07-01	61.0110350060850
1987-08-01	60.0421621339374
1987-09-01	60.8739403265078
1987-10-01	61.9280177423086
1987-11-01	61.1248134028667
1987-12-01	61.6383377672376
1988-01-01	61.0172521180808
1988-02-01	62.0622497021917
1988-03-01	63.2098146863349
1988-04-01	62.9785553791150
1988-05-01	61.5170008425563
1988-06-01	62.2298842269210
1988-07-01	61.8615767934820
1988-08-01	60.6191048706407
1988-09-01	61.9765497307008
1988-10-01	60.5805089654749
1988-11-01	61.2432023696318
1988-12-01	60.7225472181243
1989-01-01	60.0675679181104
1989-02-01	62.4554479127726
1989-03-01	62.8157887855864
1989-04-01	62.9326958769235
1989-05-01	62.9516734931351
1989-06-01	62.3252046087667
1989-07-01	62.6136787512078
1989-08-01	62.3862427523001
1989-09-01	64.3144340712275
1989-10-01	62.7194990551328
1989-11-01	63.7288096382437
1989-12-01	62.2445821276112
1990-01-01	60.5045373104167
1990-02-01	61.5767521022779
1990-03-01	62.1668720253377
1990-04-01	62.0124463617121
1990-05-01	62.6884921742619
1990-06-01	62.8275920741570
1990-07-01	63.3532383484522
1990-08-01	63.2026552317929
1990-09-01	64.6615395474210
1990-10-01	64.0161687604470
1990-11-01	63.7663182346257
1990-12-01	63.2235896932662
1991-01-01	61.8828695567060
1991-02-01	63.1221503931051
1991-03-01	62.1985230461665
1991-04-01	62.0942799429546
1991-05-01	61.7468571225087
1991-06-01	61.7366625243774
1991-07-01	60.1912241341488
1991-08-01	60.3851733326068
1991-09-01	62.4590730130108
1991-10-01	60.9982669632986
1991-11-01	62.1350098203749
1991-12-01	61.8809757541204
1992-01-01	61.6311627293232
1992-02-01	62.1501127741321
1992-03-01	61.6361632805128
1992-04-01	61.2087862449615
1992-05-01	61.2473271978970
1992-06-01	62.1745435174339
1992-07-01	62.2015080127313
1992-08-01	61.4334081036564
1992-09-01	62.1074333560016
1992-10-01	62.6214717154684
1992-11-01	60.3788533864153
1992-12-01	59.9278386231590
1993-01-01	59.1814087197041
1993-02-01	59.4334350872205
1993-03-01	61.1736070848668
1993-04-01	59.5973328310748
1993-05-01	60.6931740217950
1993-06-01	60.1340763826756
1993-07-01	59.7367797079411
1993-08-01	58.8870984331501
1993-09-01	60.9054338002986
1993-10-01	61.1752178921641
1993-11-01	61.2693034517110
1993-12-01	61.7566804138688
1994-01-01	61.0190885068394
1994-02-01	61.5918703027210
1994-03-01	62.5574029966920
1994-04-01	61.6297436478581
1994-05-01	61.9791919079560
1994-06-01	61.3524324936049
1994-07-01	60.8832139995157
1994-08-01	60.4690285411881
1994-09-01	62.1575495497901
1994-10-01	60.7454857416401
1994-11-01	61.1946239552462
1994-12-01	61.2253504198226
1995-01-01	60.2724661517444
1995-02-01	61.8996434066131
1995-03-01	61.6928379430184
1995-04-01	61.6855974414663
1995-05-01	61.6292104845472
1995-06-01	60.8203360792820
1995-07-01	60.7909539621666
1995-08-01	60.9777819571656
1995-09-01	62.8518020891308
1995-10-01	61.4405472917852
1995-11-01	61.8055323527560
1995-12-01	61.0792733527762
1996-01-01	59.8105633876501
1996-02-01	60.2516449682655
1996-03-01	60.9032862090783
1996-04-01	60.3919198038480
1996-05-01	60.0688796397611
1996-06-01	61.0311198860728
1996-07-01	60.7962079018357
1996-08-01	59.7192011364856
1996-09-01	61.2406272465249
1996-10-01	60.5621779087021
1996-11-01	60.5793983437379
1996-12-01	60.5139859450350
1997-01-01	59.8661790726345
1997-02-01	60.8582862397763
1997-03-01	60.7203999135295
1997-04-01	60.8390834165422
1997-05-01	59.4805952729073
1997-06-01	59.9990165396250
1997-07-01	59.6724009963048
1997-08-01	59.4753291844911
1997-09-01	60.9214189118041
1997-10-01	59.6568751758136
1997-11-01	60.6255948168154
1997-12-01	60.6850577348537
1998-01-01	59.4372051822136
1998-02-01	59.3310341226445
1998-03-01	60.3013834067711
1998-04-01	60.2107429706266
1998-05-01	61.1259951977106
1998-06-01	61.4850420556225
1998-07-01	60.6569219806362
1998-08-01	60.1113250486600
1998-09-01	62.5391507731880
1998-10-01	60.5764109562206
1998-11-01	60.7666794734901
1998-12-01	60.1759975040628
1999-01-01	59.4492826869338
1999-02-01	60.4207976089037
1999-03-01	60.0477750787503
1999-04-01	59.8877551894036
1999-05-01	59.7699257080782
1999-06-01	60.6979320242831
1999-07-01	60.5942215811085
1999-08-01	61.1170720206308
1999-09-01	61.3131085790775
1999-10-01	60.9931669009585
1999-11-01	61.0080724913819
1999-12-01	60.6928375713090
2000-01-01	59.3406047938467
2000-02-01	60.2943548036085
2000-03-01	60.3433710432806
2000-04-01	60.5256041648418
2000-05-01	60.8252506133258
2000-06-01	61.0656589750745
2000-07-01	60.7030581805364
2000-08-01	61.2746422465518
2000-09-01	62.6329259139075
2000-10-01	61.3163158651932
2000-11-01	61.0600347907663
2000-12-01	60.7768989672493
2001-01-01	59.5308638496305
2001-02-01	60.2001702347318
2001-03-01	59.8060806751710
2001-04-01	60.6089808734714
2001-05-01	60.5199963048549
2001-06-01	60.9677350417600
2001-07-01	60.1351357547823
2001-08-01	59.8482109263382
2001-09-01	61.6977022708934
2001-10-01	61.1343473714008
2001-11-01	60.8367557665926
2001-12-01	61.1685184181327
2002-01-01	60.2544538257129
2002-02-01	62.0066124734622
2002-03-01	61.9815553229037
2002-04-01	62.0864345319549
2002-05-01	62.2427988889350
2002-06-01	62.7147730191305
2002-07-01	61.3112121823067
2002-08-01	60.9355812420755
2002-09-01	62.8078537919651
2002-10-01	61.6781445862569
2002-11-01	62.5914183096036
2002-12-01	63.2220226239364
2003-01-01	62.4688461561676
2003-02-01	63.5834059095173
2003-03-01	63.6697373639145
2003-04-01	63.3105958621403
2003-05-01	63.4229816027459
2003-06-01	63.3896391789260
2003-07-01	63.1866345514197
2003-08-01	63.3746580640977
2003-09-01	64.2119035137314
2003-10-01	63.7314251190977
2003-11-01	63.3936927974106
2003-12-01	64.0708348816395
2004-01-01	62.4841090833775
2004-02-01	64.1496902326946
2004-03-01	64.0441195090483
2004-04-01	64.3543277381472
2004-05-01	64.9796694592055
2004-06-01	65.7443069533656
2004-07-01	65.1298165445756
2004-08-01	64.4347082868399
2004-09-01	65.9381072969211
2004-10-01	65.4023832928005
2004-11-01	64.6654554474908
2004-12-01	64.3831245071278
2005-01-01	63.7503982791067
2005-02-01	64.7618433010062
2005-03-01	65.9821982944075
2005-04-01	66.6879830415638
2005-05-01	66.2956703205489
2005-06-01	66.3005506681232
2005-07-01	66.5222985413326
2005-08-01	66.2492102642174
2005-09-01	66.9762896230997
2005-10-01	66.8525281242246
2005-11-01	67.0736990645805
2005-12-01	66.9329904027088
2006-01-01	65.0231234548910
2006-02-01	67.0343834953778
2006-03-01	67.6469815653270
2006-04-01	67.2361160838947
2006-05-01	67.2175422773192
2006-06-01	67.4710832337892
2006-07-01	67.6982177345187
2006-08-01	67.8198285167750
2006-09-01	68.6925273548294
2006-10-01	67.6321313545607
2006-11-01	66.9489999267901
2006-12-01	67.0417011870629
2007-01-01	66.3482298105578
2007-02-01	67.1985838291198
2007-03-01	67.9278420313252
2007-04-01	67.9070400041109
2007-05-01	67.9799435169128
2007-06-01	68.8419470159415
2007-07-01	67.5105207979425
2007-08-01	67.9417001702197
2007-09-01	68.5434675500722
2007-10-01	67.4610557419970
2007-11-01	67.1427032879781
2007-12-01	67.0070342045034
2008-01-01	65.6567606174419
2008-02-01	65.9653373798316
2008-03-01	67.0625912989594
2008-04-01	67.6869134460884
2008-05-01	68.1286011093163
2008-06-01	68.6839097794257
2008-07-01	67.6751733947269
2008-08-01	67.7344044869542
2008-09-01	69.1801340492650
2008-10-01	67.4495468472854
2008-11-01	67.8318206175894
2008-12-01	68.6407984462596
2009-01-01	67.4409177044214
2009-02-01	69.5053658677806
2009-03-01	69.4389728618007
2009-04-01	69.5047139355760
2009-05-01	68.7594767998092
2009-06-01	69.6587448608161
2009-07-01	69.2634600570338
2009-08-01	69.7977922400976
2009-09-01	69.4792665300901
2009-10-01	68.9633855819820
2009-11-01	69.4285956972726
2009-12-01	70.2739010597148
2010-01-01	69.1699165762619
2010-02-01	70.9290330629614
2010-03-01	70.7826541411148
2010-04-01	71.3193589623668
2010-05-01	70.9013470628905
2010-06-01	71.1680685222603
2010-07-01	71.6938534674808
2010-08-01	70.9671320325789
2010-09-01	72.4221258446466
2010-10-01	71.3933174940044
2010-11-01	71.8916574304578
2010-12-01	72.0215112925771
2011-01-01	70.9972856626099
2011-02-01	72.0012027047573
2011-03-01	72.6930938660064
2011-04-01	72.2708963688870
2011-05-01	72.0127926711136
2011-06-01	71.7372239481061
2011-07-01	71.1701256956468
2011-08-01	71.4294164768619
2011-09-01	72.1146847454063
2011-10-01	71.4059994479791
2011-11-01	71.4192513992921
2011-12-01	70.7308461495092
2012-01-01	69.7611939778733
2012-02-01	70.8346604729954
2012-03-01	71.5980395356890
2012-04-01	71.8810453927740
2012-05-01	71.8192410696169
2012-06-01	71.6761601681301
2012-07-01	72.3294379324151
2012-08-01	71.4867112866794
2012-09-01	72.3296902233597
2012-10-01	72.6010509400611
2012-11-01	72.2068911187894
2012-12-01	72.4704350068816
2013-01-01	71.0529788669569
2013-02-01	72.4991825741344
2013-03-01	72.4607432772087
2013-04-01	72.8712699436287
2013-05-01	72.3736270735601
2013-06-01	72.0513597712341
2013-07-01	72.2257652624312
2013-08-01	71.8563186214637
2013-09-01	72.6680981120503
2013-10-01	72.4203828035866
2013-11-01	71.2498715909386
2013-12-01	71.5714289009500
2014-01-01	70.8504627909035
2014-02-01	72.3004528063265
2014-03-01	72.1506689711899
2014-04-01	72.4746537744531
2014-05-01	71.6293547980632
2014-06-01	72.4349438635835
2014-07-01	73.2668817574756
2014-08-01	72.7542755482553
2014-09-01	71.8276856303187
2014-10-01	72.5864906448075
2014-11-01	72.0069725111441
2014-12-01	71.7079542994932
2015-01-01	71.2554687854694
2015-02-01	72.6789432380569
2015-03-01	72.7783051355824
2015-04-01	73.3021641189644
2015-05-01	73.1335614006609
2015-06-01	73.3079958052920
2015-07-01	73.0036409473096
2015-08-01	72.6167444212189
2015-09-01	72.3815895505504
2015-10-01	72.9364061968222
2015-11-01	73.4151214785179
2015-12-01	72.5431667805139
2016-01-01	72.3047743119402
2016-02-01	73.3134739426403
2016-03-01	72.9736024230847
2016-04-01	72.4324821283662
2016-05-01	72.8097880047987
2016-06-01	72.0793421231530
2016-07-01	71.1847804470376
2016-08-01	71.4320928457469
2016-09-01	70.4253561913426
2016-10-01	71.1163513603294
2016-11-01	71.6734183885427
2016-12-01	71.5394925945005
2017-01-01	70.1664842085838
2017-02-01	71.9514482168778
2017-03-01	71.8618869820124
2017-04-01	72.4974607318484
2017-05-01	72.9750488064090
2017-06-01	72.8943257610980
2017-07-01	73.0392519503104
2017-08-01	72.8286509375238
2017-09-01	73.4948285292230
2017-10-01	73.3681215197931
2017-11-01	74.0205318773485
2017-12-01	74.0026364140708
2018-01-01	73.1313789567932
2018-02-01	74.2689544597240
2018-03-01	73.5704374020795
2018-04-01	72.1897247192369
2018-05-01	72.7137735056024
2018-06-01	73.7434681421199
2018-07-01	73.2018751048746
2018-08-01	73.1029556308877
2018-09-01	72.9457975884520