Month	Percent
1978-01-01	61.6018142754834
1978-02-01	61.8405347338267
1978-03-01	62.8506625283514
1978-04-01	64.1689535854910
1978-05-01	65.3809523809524
1978-06-01	65.5488167439648
1978-07-01	64.9327461016546
1978-08-01	64.3987153562508
1978-09-01	64.4478782836087
1978-10-01	64.5306752106325
1978-11-01	64.1399762752076
1978-12-01	63.3689205219454
1979-01-01	62.3859732259211
1979-02-01	62.1951219512195
1979-03-01	62.9095209934950
1979-04-01	64.3895520624040
1979-05-01	65.3224855559486
1979-06-01	65.5656482246078
1979-07-01	65.3338051427224
1979-08-01	64.9005062993053
1979-09-01	64.6007291544161
1979-10-01	64.7832726418419
1979-11-01	64.2790042273368
1979-12-01	63.3036133270765
1980-01-01	62.1352396577991
1980-02-01	62.1355813136635
1980-03-01	63.0322882545625
1980-04-01	64.5984546944510
1980-05-01	65.0893796004206
1980-06-01	65.5462184873950
1980-07-01	65.3137392115699
1980-08-01	64.8573092603378
1980-09-01	64.8988136775994
1980-10-01	64.6026951672863
1980-11-01	64.0915427509294
1980-12-01	63.2954017649791
1981-01-01	62.2582513028373
1981-02-01	62.1048975338659
1981-03-01	63.1603336422614
1981-04-01	64.6248263084762
1981-05-01	64.9930587690884
1981-06-01	65.1305151305151
1981-07-01	64.9226149226149
1981-08-01	64.6054453161052
1981-09-01	64.5592985694508
1981-10-01	64.5559400230680
1981-11-01	64.3170281495154
1981-12-01	63.5912240184758
1982-01-01	62.3358673116793
1982-02-01	62.4121644971778
1982-03-01	63.4050880626223
1982-04-01	64.5977011494253
1982-05-01	65.2897303499713
1982-06-01	65.0360866078589
1982-07-01	64.6513225695637
1982-08-01	64.3885714285714
1982-09-01	64.4505368974183
1982-10-01	64.6132785763176
1982-11-01	64.2384860921113
1982-12-01	63.8800182481752
1983-01-01	62.9659181579847
1983-02-01	62.8988149498633
1983-03-01	63.6643133682532
1983-04-01	64.8504151973609
1983-05-01	65.6253549926162
1983-06-01	65.7133129043241
1983-07-01	65.3998865570051
1983-08-01	64.9790463246121
1983-09-01	64.9994341971257
1983-10-01	65.0423968343697
1983-11-01	64.4785899898317
1983-12-01	63.4936766034327
1984-01-01	62.2532987481674
1984-02-01	62.2618108016687
1984-03-01	63.2533513574406
1984-04-01	64.6555605583071
1984-05-01	65.0781162189502
1984-06-01	65.2891633913532
1984-07-01	64.9831649831650
1984-08-01	64.6940147948890
1984-09-01	65.0951847704367
1984-10-01	64.9395702775291
1984-11-01	64.3855529464386
1984-12-01	63.4585289514867
1985-01-01	62.6785714285714
1985-02-01	62.4972104440973
1985-03-01	63.1397034229011
1985-04-01	64.6134996658499
1985-05-01	65.0205761316872
1985-06-01	64.7928007999111
1985-07-01	64.7901399067288
1985-08-01	64.3601685517853
1985-09-01	64.5429362880886
1985-10-01	64.4454283816692
1985-11-01	63.8686131386861
1985-12-01	62.7529021558872
1986-01-01	62.3647604327666
1986-02-01	62.3068432671082
1986-03-01	62.9576532862814
1986-04-01	64.2943703866916
1986-05-01	64.4781700208952
1986-06-01	64.5462535706438
1986-07-01	64.6496815286624
1986-08-01	64.3311403508772
1986-09-01	64.2207863322747
1986-10-01	64.2013129102845
1986-11-01	63.6492839182246
1986-12-01	62.8006121556624
1987-01-01	61.9063216508352
1987-02-01	61.7836480733544
1987-03-01	62.7017008286088
1987-04-01	64.0623297373870
1987-05-01	64.4536351763169
1987-06-01	64.4961408848788
1987-07-01	64.4393741851369
1987-08-01	64.3376369751546
1987-09-01	64.1881638846737
1987-10-01	64.0970116933737
1987-11-01	63.8840830449827
1987-12-01	63.3365769272354
1988-01-01	62.3651273198101
1988-02-01	62.1329879101900
1988-03-01	62.9194087819614
1988-04-01	64.4319896529424
1988-05-01	65.0419625564881
1988-06-01	65.0349650349650
1988-07-01	64.9183147033534
1988-08-01	64.4742489270386
1988-09-01	64.3553745579252
1988-10-01	64.2895384944855
1988-11-01	64.0350877192982
1988-12-01	63.5265183917878
1989-01-01	62.4986652429258
1989-02-01	62.6682332834864
1989-03-01	63.4724148970227
1989-04-01	64.7924890643337
1989-05-01	65.3928039173941
1989-06-01	65.6881514571368
1989-07-01	65.6067212591726
1989-08-01	64.9925674240815
1989-09-01	64.9029795355742
1989-10-01	64.9009428964933
1989-11-01	64.7407407407408
1989-12-01	64.4013972689743
1990-01-01	63.2307854952955
1990-02-01	63.4239187903140
1990-03-01	64.4094654553138
1990-04-01	65.4098014364174
1990-05-01	66.1326025086961
1990-06-01	66.0556257901391
1990-07-01	65.9713442899284
1990-08-01	65.3902798232695
1990-09-01	65.7001785901880
1990-10-01	65.6797900262467
1990-11-01	65.3414455050876
1990-12-01	64.9181703734788
1991-01-01	64.0926236378877
1991-02-01	64.1119731599916
1991-03-01	64.8906102794934
1991-04-01	65.8998222315173
1991-05-01	66.5622389306600
1991-06-01	66.8301847406325
1991-07-01	66.5030802965438
1991-08-01	66.2460896767466
1991-09-01	66.2813704050817
1991-10-01	66.0770031217482
1991-11-01	65.9767006448929
1991-12-01	65.6952539550375
1992-01-01	64.4966722129784
1992-02-01	64.9921996879875
1992-03-01	65.3598169717138
1992-04-01	66.2816109896972
1992-05-01	66.8294203199668
1992-06-01	66.8187947308370
1992-07-01	66.4833454394521
1992-08-01	66.3281169033060
1992-09-01	66.2836438923396
1992-10-01	66.4701623745992
1992-11-01	66.3462532299742
1992-12-01	65.8077201697196
1993-01-01	64.4864641454846
1993-02-01	64.3587888808515
1993-03-01	64.9354672173464
1993-04-01	66.0784313725490
1993-05-01	66.5188698700763
1993-06-01	66.5945165945166
1993-07-01	66.4159884619347
1993-08-01	66.0491921374910
1993-09-01	65.9742930591260
1993-10-01	66.1149378019944
1993-11-01	65.8689400164338
1993-12-01	65.4268981814446
1994-01-01	64.3260445539472
1994-02-01	64.0854472630174
1994-03-01	64.6412809196346
1994-04-01	65.9480546145160
1994-05-01	66.4206642066421
1994-06-01	66.3319672131148
1994-07-01	66.0311603116031
1994-08-01	65.6873784420104
1994-09-01	65.5144201268153
1994-10-01	65.4907975460123
1994-11-01	65.2969436778084
1994-12-01	64.8328049902853
1995-01-01	63.9288997854735
1995-02-01	63.9300685001534
1995-03-01	64.5039337897211
1995-04-01	65.4361386644851
1995-05-01	65.7682491066871
1995-06-01	66.0273413589064
1995-07-01	66.0028594771242
1995-08-01	65.4862741096030
1995-09-01	65.7830342577488
1995-10-01	65.4234179150107
1995-11-01	64.8640391078521
1995-12-01	64.5223774085024
1996-01-01	63.6761710794297
1996-02-01	63.5446392172850
1996-03-01	64.5194169809398
1996-04-01	65.4469473040465
1996-05-01	65.6386768447837
1996-06-01	66.2394466483572
1996-07-01	66.2730326784078
1996-08-01	65.7511951988607
1996-09-01	65.8945443462359
1996-10-01	65.6342033106530
1996-11-01	65.1745838408445
1996-12-01	64.8511330149375
1997-01-01	64.3681652490887
1997-02-01	64.3827285627407
1997-03-01	65.0020259319287
1997-04-01	65.8358662613982
1997-05-01	66.2013151239251
1997-06-01	66.5959167172024
1997-07-01	66.4170798340585
1997-08-01	65.8240647118301
1997-09-01	65.7982429566798
1997-10-01	65.7783161720170
1997-11-01	65.1190956802584
1997-12-01	65.0262732417138
1998-01-01	64.4803229061554
1998-02-01	64.0347334410339
1998-03-01	64.4578920827030
1998-04-01	65.0792049238220
1998-05-01	65.6278366111952
1998-06-01	65.6754032258064
1998-07-01	65.4264972776770
1998-08-01	65.0644901249496
1998-09-01	64.8711236407572
1998-10-01	64.8781960942219
1998-11-01	64.4158196638825
1998-12-01	64.1108312342569
1999-01-01	63.4470268638696
1999-02-01	63.0677812468526
1999-03-01	63.5273972602740
1999-04-01	64.3101711983887
1999-05-01	64.8118333668746
1999-06-01	64.6668008858466
1999-07-01	64.4294626685450
1999-08-01	64.6011467659189
1999-09-01	64.6124459636071
1999-10-01	64.4652191395255
1999-11-01	64.2749472414833
1999-12-01	63.8009049773756
2000-01-01	63.1055276381910
2000-02-01	62.6759147567350
2000-03-01	62.9990948405914
2000-04-01	63.9758429793659
2000-05-01	64.5119131396401
2000-06-01	64.4127398774239
2000-07-01	64.3496630117694
2000-08-01	64.2368791473959
2000-09-01	64.2347502763541
2000-10-01	64.4263612618043
2000-11-01	64.3538507882318
2000-12-01	63.8408999598232
2001-01-01	63.1303998392606
2001-02-01	63.1769679887256
2001-03-01	63.3172399919533
2001-04-01	63.7616987018215
2001-05-01	64.1463905087472
2001-06-01	64.1327300150830
2001-07-01	63.9847128633209
2001-08-01	63.8612368024133
2001-09-01	63.3202693196664
2001-10-01	63.4053239578102
2001-11-01	63.6053397571013
2001-12-01	63.0198915009042
2002-01-01	62.1920563097034
2002-02-01	62.0908449994964
2002-03-01	62.5163694973305
2002-04-01	62.8565668783389
2002-05-01	63.0047326553217
2002-06-01	63.2045088566828
2002-07-01	63.2957292506044
2002-08-01	63.2554391619662
2002-09-01	63.0043263909850
2002-10-01	63.0594388011666
2002-11-01	63.0614300100705
2002-12-01	62.6021180030257
2003-01-01	61.7564025005041
2003-02-01	61.6759212518930
2003-03-01	62.1861450035293
2003-04-01	62.6135216952573
2003-05-01	63.0947580645161
2003-06-01	63.5072522159549
2003-07-01	63.3037694013304
2003-08-01	63.1037612181103
2003-09-01	62.9536290322581
2003-10-01	62.9637096774194
2003-11-01	62.8957451099012
2003-12-01	62.8080808080808
2004-01-01	61.9335957210617
2004-02-01	61.8595250126326
2004-03-01	62.4318319531408
2004-04-01	63.0968002422530
2004-05-01	63.4178365821634
2004-06-01	63.3623305684807
2004-07-01	63.4193222053617
2004-08-01	63.6106051406598
2004-09-01	63.3420999393081
2004-10-01	63.3080424886191
2004-11-01	63.0258899676375
2004-12-01	62.9037157031487
2005-01-01	62.4455916590748
2005-02-01	62.1150729335494
2005-03-01	62.5139381652306
2005-04-01	63.3651309113051
2005-05-01	64.0113509678727
2005-06-01	63.9922913074348
2005-07-01	63.9444049913767
2005-08-01	63.8762049720954
2005-09-01	64.2183220046667
2005-10-01	64.0487062404871
2005-11-01	63.3539742158156
2005-12-01	63.1284916201117
2006-01-01	62.7566578572881
2006-02-01	62.8766286644951
2006-03-01	63.1546832096003
2006-04-01	63.8198124745210
2006-05-01	64.5555442419306
2006-06-01	64.4216095228406
2006-07-01	64.2631632549140
2006-08-01	64.3402954661233
2006-09-01	64.4319918492104
2006-10-01	64.5105429357238
2006-11-01	64.2493379507028
2006-12-01	63.6993983889059
2007-01-01	63.0343842465055
2007-02-01	63.3653257096181
2007-03-01	63.8193522019005
2007-04-01	64.7347439435756
2007-05-01	65.1982829108749
2007-06-01	65.1778413736713
2007-07-01	64.8129216929053
2007-08-01	64.6794150731159
2007-09-01	64.5633053794232
2007-10-01	64.5831202046036
2007-11-01	64.7492323439099
2007-12-01	64.4071267663322
2008-01-01	63.7015781922525
2008-02-01	63.5617562576939
2008-03-01	63.9499076165058
2008-04-01	64.7838143165246
2008-05-01	65.1812301057604
2008-06-01	64.9686761836294
2008-07-01	64.5476019307795
2008-08-01	64.6351490236382
2008-09-01	64.5257424725106
2008-10-01	64.5244215938303
2008-11-01	64.6266200370294
2008-12-01	64.0695759571840
2009-01-01	63.7852874510612
2009-02-01	63.5220125786164
2009-03-01	63.3072003301011
2009-04-01	63.9872046228459
2009-05-01	64.1626251160871
2009-06-01	63.7808275719740
2009-07-01	63.4702725020644
2009-08-01	63.7678165668250
2009-09-01	63.8363805392005
2009-10-01	63.6157024793388
2009-11-01	63.5593220338983
2009-12-01	63.2950667080360
2010-01-01	63.2532615448333
2010-02-01	63.0804311774461
2010-03-01	63.2818172388756
2010-04-01	63.7816521378165
2010-05-01	64.0203403902034
2010-06-01	63.8315527434913
2010-07-01	63.8090295796575
2010-08-01	63.8978299242031
2010-09-01	64.2604902368093
2010-10-01	64.0378221113882
2010-11-01	63.7904148040337
2010-12-01	63.6987726232578
2011-01-01	63.4603372891943
2011-02-01	63.6685773840542
2011-03-01	63.4351145038168
2011-04-01	64.0885785971419
2011-05-01	64.3690696913513
2011-06-01	64.1937595461488
2011-07-01	63.8258402444347
2011-08-01	63.9168490153173
2011-09-01	64.3058897374202
2011-10-01	64.1811336540473
2011-11-01	64.2364016736402
2011-12-01	63.9246467817896
2012-01-01	63.3357595923885
2012-02-01	63.5578224211512
2012-03-01	63.4753620168768
2012-04-01	64.0296018344799
2012-05-01	64.3475539793470
2012-06-01	64.4347100542345
2012-07-01	64.1285073537081
2012-08-01	64.2886942010847
2012-09-01	64.5070422535211
2012-10-01	64.6629096222083
2012-11-01	64.5572263993316
2012-12-01	63.9431616341030
2013-01-01	64.0435328589368
2013-02-01	64.2228739002932
2013-03-01	64.2849659507596
2013-04-01	64.8951781970650
2013-05-01	65.1955131565154
2013-06-01	65.1923278482339
2013-07-01	64.9512629703386
2013-08-01	65.0377516778524
2013-09-01	65.3495440729483
2013-10-01	65.4333927261294
2013-11-01	65.6043610441346
2013-12-01	65.2369966442953
2014-01-01	64.7596052907831
2014-02-01	64.9364295471262
2014-03-01	65.1003889414485
2014-04-01	65.4606647034076
2014-05-01	65.9657238986437
2014-06-01	65.9446956156030
2014-07-01	65.6223717409588
2014-08-01	65.8179905312993
2014-09-01	66.1057945104638
2014-10-01	66.0002104598548
2014-11-01	65.8913912860450
2014-12-01	65.9050226387280
2015-01-01	65.4896173711394
2015-02-01	65.6256594218190
2015-03-01	65.5547345086034
2015-04-01	65.7477820025348
2015-05-01	66.2723143551283
2015-06-01	66.5786973503642
2015-07-01	66.2369227517700
2015-08-01	66.2330795262267
2015-09-01	66.8393234672304
2015-10-01	66.7723860873242
2015-11-01	66.3211339115718
2015-12-01	66.4725809866610
2016-01-01	66.5889830508475
2016-02-01	66.2599469496021
2016-03-01	66.0970173017726
2016-04-01	66.6631254647828
2016-05-01	67.1091758708581
2016-06-01	67.5342611282269
2016-07-01	67.4248060367733
2016-08-01	67.3651739176683
2016-09-01	67.7381585949974
2016-10-01	67.7769500904544
2016-11-01	67.4619235275322
2016-12-01	67.6439232409382
2017-01-01	67.4299712429439
2017-02-01	67.0149253731343
2017-03-01	67.0364838916151
2017-04-01	67.7240200790345
2017-05-01	68.1502828476892
2017-06-01	68.5750907925657
2017-07-01	68.3288841430860
2017-08-01	68.4694313809320
2017-09-01	68.6718666524201
2017-10-01	68.6798503474078
2017-11-01	68.4919786096257
2017-12-01	68.4227433344041
2018-01-01	68.6675956694180
2018-02-01	68.7372599506491
2018-03-01	69.1688144329897
2018-04-01	69.7744360902256
2018-05-01	70.0429645542427
2018-06-01	69.8755097660442
2018-07-01	69.7721899849560
2018-08-01	70.0376546530393
2018-09-01	70.2624220262422