Month	Percent
1978-02-01	72.9631976593759
1978-03-01	73.5828817215940
1978-04-01	73.7867567658044
1978-05-01	73.7136971686746
1978-06-01	73.5978952071476
1978-07-01	73.4203403423703
1978-08-01	73.4665621165499
1978-09-01	73.6396657868693
1978-10-01	73.6746352076637
1978-11-01	73.7814370461697
1978-12-01	73.7005796684751
1979-01-01	71.6688918841606
1979-02-01	73.2587090617298
1979-03-01	74.0069007591303
1979-04-01	73.8376523760381
1979-05-01	73.3325205266306
1979-06-01	73.6099699829575
1979-07-01	73.5752246160981
1979-08-01	73.2075750535411
1979-09-01	74.0002161898875
1979-10-01	74.3900980060730
1979-11-01	74.1323092784621
1979-12-01	73.8368887005436
1980-01-01	72.0774807008442
1980-02-01	73.8697552788502
1980-03-01	74.6647376292638
1980-04-01	73.8795011961482
1980-05-01	74.0304741207598
1980-06-01	74.1222993895949
1980-07-01	74.3403352590910
1980-08-01	74.1525204018170
1980-09-01	74.6894037969174
1980-10-01	74.2281778601472
1980-11-01	74.2261256145921
1980-12-01	74.1386550980788
1981-01-01	72.2447635799373
1981-02-01	73.7461844098183
1981-03-01	74.7211492546112
1981-04-01	74.4816559435343
1981-05-01	74.2256904852909
1981-06-01	74.1842996124251
1981-07-01	74.2768401830806
1981-08-01	74.1208777423535
1981-09-01	75.1011723508579
1981-10-01	74.5322606016578
1981-11-01	74.5901531385091
1981-12-01	74.2266453777383
1982-01-01	72.4198273143694
1982-02-01	74.1741490473716
1982-03-01	74.9741735866454
1982-04-01	74.2074158783718
1982-05-01	74.2948297535517
1982-06-01	74.2545783545349
1982-07-01	74.4103840518046
1982-08-01	74.0878947271882
1982-09-01	74.8851267600158
1982-10-01	74.8276171614570
1982-11-01	74.6288407672774
1982-12-01	74.3666924988298
1983-01-01	72.0435487082111
1983-02-01	74.3390414314078
1983-03-01	75.0933192780304
1983-04-01	74.1149311681169
1983-05-01	74.3479151976351
1983-06-01	74.2194847253945
1983-07-01	74.4304821176402
1983-08-01	73.9623264369200
1983-09-01	75.0708503397411
1983-10-01	74.2881155625602
1983-11-01	74.3981660519314
1983-12-01	74.2916596443171
1984-01-01	72.3028616813884
1984-02-01	74.2755576286670
1984-03-01	75.6492384577204
1984-04-01	75.1175251351880
1984-05-01	74.9478359986220
1984-06-01	75.0867668516202
1984-07-01	74.9014497023872
1984-08-01	74.5462667306466
1984-09-01	75.6617250470256
1984-10-01	75.2073403422512
1984-11-01	75.2066760353341
1984-12-01	75.1439560977749
1985-01-01	73.0266884656098
1985-02-01	75.2923511322246
1985-03-01	76.1702642766005
1985-04-01	74.9189912498796
1985-05-01	75.4582275338160
1985-06-01	75.4609479275654
1985-07-01	75.5888534626724
1985-08-01	75.5018149639119
1985-09-01	76.1741961630947
1985-10-01	75.6206285409486
1985-11-01	76.8095110766643
1985-12-01	76.4004008982693
1986-01-01	74.4576900191799
1986-02-01	76.6450737184174
1986-03-01	77.5955815347662
1986-04-01	77.2421070264605
1986-05-01	77.2020770884642
1986-06-01	77.4611028808464
1986-07-01	77.6558322345867
1986-08-01	77.0583501981537
1986-09-01	78.0694523947518
1986-10-01	77.7478552190108
1986-11-01	77.5908022816372
1986-12-01	77.4487946369310
1987-01-01	75.2986431971409
1987-02-01	77.2132785698187
1987-03-01	78.5623966424155
1987-04-01	77.8490292651945
1987-05-01	77.7923021652141
1987-06-01	77.7808242443774
1987-07-01	77.7639864076667
1987-08-01	77.6321737550953
1987-09-01	78.1005400480980
1987-10-01	77.5717518564470
1987-11-01	77.4584694591351
1987-12-01	77.8255448660166
1988-01-01	76.2336584241525
1988-02-01	77.7237307117218
1988-03-01	79.0164544029338
1988-04-01	79.0050349660748
1988-05-01	78.5837475616348
1988-06-01	78.5211256293860
1988-07-01	77.8922040056336
1988-08-01	77.8019754701990
1988-09-01	79.1921936026489
1988-10-01	78.5035026896776
1988-11-01	78.7449226651598
1988-12-01	78.7085344373998
1989-01-01	76.6982755141550
1989-02-01	78.4234079941682
1989-03-01	79.0144344425786
1989-04-01	79.2522257100808
1989-05-01	79.5077425896448
1989-06-01	79.1464172917313
1989-07-01	79.1238750220754
1989-08-01	79.1175732963392
1989-09-01	80.1926707047087
1989-10-01	79.3559152493312
1989-11-01	80.2013847064546
1989-12-01	80.1057364912680
1990-01-01	78.0124450689121
1990-02-01	80.0281416743864
1990-03-01	80.5472907229264
1990-04-01	80.2849891510807
1990-05-01	80.6030956620916
1990-06-01	80.5995695216978
1990-07-01	80.3366914876569
1990-08-01	79.8990666528824
1990-09-01	80.7767815312957
1990-10-01	79.9941370017927
1990-11-01	80.0805455764385
1990-12-01	80.1359203154189
1991-01-01	78.3574937255505
1991-02-01	80.2133459022069
1991-03-01	80.7449865812414
1991-04-01	80.8775209650207
1991-05-01	80.6903388843914
1991-06-01	80.3316743544533
1991-07-01	79.7306350239743
1991-08-01	80.0902407160481
1991-09-01	80.9733475748552
1991-10-01	79.8250561435965
1991-11-01	79.7650820978820
1991-12-01	79.9162164414769
1992-01-01	78.5168907743236
1992-02-01	80.1286691520080
1992-03-01	80.4812327787927
1992-04-01	80.0306057969346
1992-05-01	79.9536232738786
1992-06-01	80.0657592004025
1992-07-01	79.9511983074654
1992-08-01	79.6570913310756
1992-09-01	80.4793000859232
1992-10-01	79.9468009899438
1992-11-01	79.6825334008220
1992-12-01	79.9426964155463
1993-01-01	78.3759914931257
1993-02-01	79.4946033598085
1993-03-01	80.2101663709190
1993-04-01	79.2966217529486
1993-05-01	79.6629535122706
1993-06-01	79.7836760447243
1993-07-01	79.4425436383292
1993-08-01	79.4683703037577
1993-09-01	80.5077624121876
1993-10-01	80.1923209623819
1993-11-01	80.1815531822561
1993-12-01	80.0161335782312
1994-01-01	78.0682966111968
1994-02-01	79.6626831963624
1994-03-01	79.9020869884495
1994-04-01	79.5032550451668
1994-05-01	79.6196052599940
1994-06-01	79.7538686865240
1994-07-01	79.9979313247515
1994-08-01	79.3834727453525
1994-09-01	80.9089390168100
1994-10-01	79.7314187390175
1994-11-01	79.8036726505503
1994-12-01	79.9398995598750
1995-01-01	78.4816103790384
1995-02-01	80.0458715298686
1995-03-01	80.4521673866990
1995-04-01	80.1866301284788
1995-05-01	80.3847270590433
1995-06-01	80.5600463113789
1995-07-01	80.5560409676281
1995-08-01	80.2867157486735
1995-09-01	81.2339528999823
1995-10-01	80.4999301275790
1995-11-01	81.0123958146749
1995-12-01	80.8261919097534
1996-01-01	79.1815057621022
1996-02-01	80.6921618605709
1996-03-01	80.7220948161650
1996-04-01	80.0257698746336
1996-05-01	80.4016170105179
1996-06-01	80.2399994814908
1996-07-01	80.2587940086785
1996-08-01	80.1670685375486
1996-09-01	80.9944121711525
1996-10-01	80.2517267769670
1996-11-01	80.2440321176418
1996-12-01	80.4124109596350
1997-01-01	79.0690033571654
1997-02-01	80.5939519715646
1997-03-01	80.4934829532130
1997-04-01	80.2414955262366
1997-05-01	80.2519613092842
1997-06-01	80.1277250024082
1997-07-01	80.3090134522301
1997-08-01	79.5848859391727
1997-09-01	81.0273642169794
1997-10-01	79.9595946325326
1997-11-01	80.2690326643795
1997-12-01	80.0725542145877
1998-01-01	78.5532781495054
1998-02-01	80.0324256937254
1998-03-01	80.1575778971646
1998-04-01	80.0099219235055
1998-05-01	79.9991292168862
1998-06-01	80.1649563527523
1998-07-01	80.1971506185367
1998-08-01	79.7857155343802
1998-09-01	81.0246568575428
1998-10-01	80.2156488411786
1998-11-01	79.9617980653061
1998-12-01	80.1448493829433
1999-01-01	78.5497424524357
1999-02-01	79.8609908417905
1999-03-01	80.0066084531766
1999-04-01	79.7920275677939
1999-05-01	79.8157973286164
1999-06-01	79.9227279931834
1999-07-01	79.8433957730828
1999-08-01	79.4441339189813
1999-09-01	80.7042168286197
1999-10-01	80.0299478286595
1999-11-01	79.8274466931305
1999-12-01	80.3915600188718
2000-01-01	78.4778001701144
2000-02-01	79.9419420608973
2000-03-01	80.3163569108192
2000-04-01	80.3770612735717
2000-05-01	80.2637053964790
2000-06-01	80.6097415241414
2000-07-01	80.7511183105096
2000-08-01	80.3517024062780
2000-09-01	81.3511682752122
2000-10-01	80.3669031628106
2000-11-01	80.0641051384935
2000-12-01	80.4583008955003
2001-01-01	78.8262943765806
2001-02-01	80.4123071907850
2001-03-01	80.3857149271098
2001-04-01	81.0813276861543
2001-05-01	80.7769192366280
2001-06-01	80.8482784303092
2001-07-01	80.5263232951741
2001-08-01	80.5042928337733
2001-09-01	81.3187944172896
2001-10-01	80.7885530504566
2001-11-01	80.5277624036418
2001-12-01	80.6391486103515
2002-01-01	79.8590514654218
2002-02-01	80.5222020127310
2002-03-01	80.7338859479916
2002-04-01	80.5735695760077
2002-05-01	80.5991034521144
2002-06-01	81.0250490193292
2002-07-01	80.5919489290709
2002-08-01	80.7266936651582
2002-09-01	81.5921780006824
2002-10-01	80.7218805450493
2002-11-01	81.1739894766921
2002-12-01	81.4450828871996
2003-01-01	80.5336232347170
2003-02-01	81.7038105638492
2003-03-01	81.4762914992777
2003-04-01	81.3287325896084
2003-05-01	81.2910316217167
2003-06-01	81.2589797618216
2003-07-01	80.7122306714603
2003-08-01	80.6133631201417
2003-09-01	81.7250549588609
2003-10-01	80.9468702019050
2003-11-01	80.6720061750298
2003-12-01	80.9098828011979
2004-01-01	79.7592822065151
2004-02-01	80.6908706499823
2004-03-01	80.9004958534442
2004-04-01	80.7516492659775
2004-05-01	80.7893743656220
2004-06-01	80.8069665075246
2004-07-01	80.5739215172789
2004-08-01	80.4601208376456
2004-09-01	81.4611840020668
2004-10-01	80.9809691543517
2004-11-01	81.0692703417889
2004-12-01	81.2905908756368
2005-01-01	80.3034663805354
2005-02-01	81.7595227299127
2005-03-01	82.1275896702568
2005-04-01	81.9673237671764
2005-05-01	82.1251520419002
2005-06-01	82.2485627793289
2005-07-01	81.7868101301573
2005-08-01	81.8976087063407
2005-09-01	82.7855786181887
2005-10-01	82.0711925942637
2005-11-01	81.8077129744828
2005-12-01	82.2705478169760
2006-01-01	81.0582939205417
2006-02-01	81.9271648279521
2006-03-01	82.2000720452605
2006-04-01	82.0741028167227
2006-05-01	82.3667281264132
2006-06-01	82.3885413175918
2006-07-01	82.2947434077055
2006-08-01	81.9710478035082
2006-09-01	83.1469409503942
2006-10-01	82.1142060105249
2006-11-01	82.1817704401849
2006-12-01	82.8247714270432
2007-01-01	81.2675142299494
2007-02-01	82.6469262544124
2007-03-01	82.8164138040852
2007-04-01	82.4550773827944
2007-05-01	82.6617827796670
2007-06-01	82.8685542615750
2007-07-01	82.6569705013463
2007-08-01	82.4358851068999
2007-09-01	83.7055101997119
2007-10-01	82.8408899711472
2007-11-01	83.0060628598477
2007-12-01	83.3750870001364
2008-01-01	82.0046180126557
2008-02-01	83.1378041955840
2008-03-01	83.3610781794446
2008-04-01	83.1620629529181
2008-05-01	83.1434113865341
2008-06-01	83.2755155165180
2008-07-01	82.9670115249048
2008-08-01	82.8538288004299
2008-09-01	83.6298400849559
2008-10-01	83.2670289801981
2008-11-01	83.1144135118695
2008-12-01	83.3727773756250
2009-01-01	82.3096378678661
2009-02-01	83.3964796382735
2009-03-01	83.2064104447951
2009-04-01	83.1027854009437
2009-05-01	83.4506181270114
2009-06-01	83.0509402189721
2009-07-01	82.8439262255817
2009-08-01	82.4376650505535
2009-09-01	83.4332501247200
2009-10-01	82.7129561176066
2009-11-01	82.3607881898987
2009-12-01	82.6310425555067
2010-01-01	81.7552325438440
2010-02-01	82.5406225029067
2010-03-01	82.6292481279888
2010-04-01	82.4675687123724
2010-05-01	82.6596478723550
2010-06-01	82.8304768432818
2010-07-01	82.6948410197084
2010-08-01	82.6319342916840
2010-09-01	83.7182041315344
2010-10-01	83.2764683665708
2010-11-01	83.1722406744206
2010-12-01	83.3434159225634
2011-01-01	82.1786018774396
2011-02-01	83.0931034527202
2011-03-01	83.4665654803016
2011-04-01	83.0964217629906
2011-05-01	83.2291886982014
2011-06-01	83.1469104341914
2011-07-01	83.1533907653982
2011-08-01	82.6118635078737
2011-09-01	83.6673678477763
2011-10-01	83.1314799900995
2011-11-01	83.0688599202740
2011-12-01	83.0296128910260
2012-01-01	81.8210227240198
2012-02-01	82.8911250119632
2012-03-01	83.2299425607485
2012-04-01	82.7389871406229
2012-05-01	83.0617193371876
2012-06-01	82.7454662694057
2012-07-01	82.7586255307247
2012-08-01	82.3019626960688
2012-09-01	83.6579857243322
2012-10-01	82.9055412361010
2012-11-01	82.6636161207514
2012-12-01	82.8986481511342
2013-01-01	81.9877073623531
2013-02-01	83.1855193007128
2013-03-01	83.2998489028777
2013-04-01	83.0636369468374
2013-05-01	83.0894639915922
2013-06-01	83.2731392694218
2013-07-01	82.7576574398634
2013-08-01	82.3743326477441
2013-09-01	83.3928719475428
2013-10-01	82.9713267591220
2013-11-01	82.8050144878125
2013-12-01	82.8483577626622
2014-01-01	81.8658528944778
2014-02-01	83.2192145320949
2014-03-01	83.1386683666536
2014-04-01	82.8547795342324
2014-05-01	82.9537376941125
2014-06-01	82.8070058493183
2014-07-01	82.6808593277711
2014-08-01	82.9188283044143
2014-09-01	82.8534398560833
2014-10-01	82.7660811448950
2014-11-01	82.6040291895018
2014-12-01	82.9969704631147
2015-01-01	82.0421552589500
2015-02-01	83.8447030137151
2015-03-01	83.6133856410347
2015-04-01	83.3037990822771
2015-05-01	83.6149893703206
2015-06-01	83.2931563878848
2015-07-01	83.4053899343552
2015-08-01	83.4738600908507
2015-09-01	83.4289308755723
2015-10-01	83.3621446897566
2015-11-01	83.4915272105772
2015-12-01	83.5082062142987
2016-01-01	82.7109039125672
2016-02-01	83.9944294511968
2016-03-01	83.5220890853561
2016-04-01	83.4240612949474
2016-05-01	83.5643727233697
2016-06-01	83.4806570122594
2016-07-01	83.4458755316354
2016-08-01	83.1350455437509
2016-09-01	83.3127744788925
2016-10-01	83.3702037080489
2016-11-01	83.6597078356329
2016-12-01	83.6505896165264
2017-01-01	82.1392066363611
2017-02-01	84.0752055919090
2017-03-01	83.9880196568738
2017-04-01	83.9694001588674
2017-05-01	84.0250618070284
2017-06-01	83.9772076509524
2017-07-01	83.7788357250767
2017-08-01	83.7824985036063
2017-09-01	83.9500987972666
2017-10-01	84.0995548172227
2017-11-01	84.4869128874315
2017-12-01	84.8260790970733
2018-01-01	83.5401548321057
2018-02-01	84.8991550981726
2018-03-01	84.7197173113398
2018-04-01	84.7225913703310
2018-05-01	84.6331118642754
2018-06-01	84.5691048664125
2018-07-01	84.3420886722684
2018-08-01	84.1841345847449
2018-09-01	84.1673524570719