Month	Percent
1978-01-01	81.0500610500610
1978-02-01	81.4606741573034
1978-03-01	82.1289062500000
1978-04-01	82.6787021224689
1978-05-01	83.2562667315649
1978-06-01	83.0900243309002
1978-07-01	82.7854881908936
1978-08-01	82.3686770428016
1978-09-01	82.2400388726919
1978-10-01	82.1246665049721
1978-11-01	82.3030303030303
1978-12-01	81.8424242424242
1979-01-01	80.9731299927378
1979-02-01	81.0365705982078
1979-03-01	81.7258883248731
1979-04-01	82.4595312877507
1979-05-01	82.8309621413070
1979-06-01	83.2891246684350
1979-07-01	83.1647398843931
1979-08-01	82.5919692233710
1979-09-01	81.8443804034582
1979-10-01	82.0340609258815
1979-11-01	82.1497120921305
1979-12-01	81.7157919961658
1980-01-01	80.7130892558028
1980-02-01	80.5734767025090
1980-03-01	81.5575728619207
1980-04-01	82.2896749521988
1980-05-01	82.2365283738674
1980-06-01	82.6387235055966
1980-07-01	82.5952380952381
1980-08-01	82.0689655172414
1980-09-01	81.9239904988124
1980-10-01	82.1047641621237
1980-11-01	82.0142180094787
1980-12-01	81.6157308694622
1981-01-01	81.0446702907114
1981-02-01	81.1909262759924
1981-03-01	82.2096049207476
1981-04-01	82.5922421948912
1981-05-01	82.3848878394333
1981-06-01	82.6383981154299
1981-07-01	82.3986804901037
1981-08-01	82.0343772074406
1981-09-01	81.8502824858757
1981-10-01	81.7411764705882
1981-11-01	81.4571092831962
1981-12-01	80.9602259355142
1982-01-01	80.3336466165414
1982-02-01	80.6815511163337
1982-03-01	81.6686251468860
1982-04-01	82.5586854460094
1982-05-01	82.4865371107469
1982-06-01	82.1687310119187
1982-07-01	81.9052066308662
1982-08-01	81.7863805970149
1982-09-01	81.6274189787829
1982-10-01	81.7249417249417
1982-11-01	81.6573556797020
1982-12-01	81.4521759367000
1983-01-01	81.0553231055323
1983-02-01	81.0176579925651
1983-03-01	81.4023682377525
1983-04-01	82.1345707656612
1983-05-01	82.4878387769284
1983-06-01	82.7123351076140
1983-07-01	82.2617946345976
1983-08-01	81.8979450473332
1983-09-01	81.7258883248731
1983-10-01	81.5395252362296
1983-11-01	81.4874510706885
1983-12-01	80.9479981592269
1984-01-01	80.2988505747126
1984-02-01	80.3998161764706
1984-03-01	80.8627810922441
1984-04-01	81.6785141022701
1984-05-01	81.7494847721548
1984-06-01	81.8389752973468
1984-07-01	81.4128943758573
1984-08-01	81.3698630136986
1984-09-01	81.5051311288484
1984-10-01	81.1531449407475
1984-11-01	81.0976998405830
1984-12-01	80.5372183018438
1985-01-01	79.9818223131106
1985-02-01	79.7819173103135
1985-03-01	80.3449841125738
1985-04-01	81.1380639310814
1985-05-01	81.1905839746492
1985-06-01	80.9814563545907
1985-07-01	80.9308630817894
1985-08-01	80.5461521101332
1985-09-01	80.7440811724916
1985-10-01	80.6487947735976
1985-11-01	80.4455445544554
1985-12-01	79.8965594783000
1986-01-01	79.5148247978437
1986-02-01	79.1694725028058
1986-03-01	79.9058084772370
1986-04-01	80.8830121021963
1986-05-01	80.6797853309481
1986-06-01	80.4333258878714
1986-07-01	80.7812500000000
1986-08-01	80.8069549710210
1986-09-01	80.5165887330216
1986-10-01	80.3380782918150
1986-11-01	80.0044434570096
1986-12-01	79.4980008884940
1987-01-01	79.0011098779134
1987-02-01	78.8901220865705
1987-03-01	79.5922889430534
1987-04-01	80.4208194905869
1987-05-01	80.4468038044680
1987-06-01	80.4727192401149
1987-07-01	80.4899580666520
1987-08-01	80.5818823010800
1987-09-01	80.1365338031271
1987-10-01	80.0087970090169
1987-11-01	79.7935427190863
1987-12-01	79.3065613342111
1988-01-01	78.7341217696014
1988-02-01	78.7248028045574
1988-03-01	79.2990142387733
1988-04-01	80.2363755745240
1988-05-01	80.4062909567497
1988-06-01	80.5197641406421
1988-07-01	80.4404709986917
1988-08-01	80.1872414543871
1988-09-01	79.6694933681235
1988-10-01	79.6783307976527
1988-11-01	79.7743055555556
1988-12-01	79.2497831743278
1989-01-01	78.2975958414555
1989-02-01	78.5915492957746
1989-03-01	79.2126324897253
1989-04-01	80.1427644386762
1989-05-01	80.2546396201985
1989-06-01	80.3579128934886
1989-07-01	80.4998922645981
1989-08-01	80.0731654831074
1989-09-01	79.7506448839209
1989-10-01	79.7767282095320
1989-11-01	79.7984130388162
1989-12-01	79.6054042461934
1990-01-01	78.6203941730934
1990-02-01	78.7489288774636
1990-03-01	79.4010695187166
1990-04-01	80.0385109114249
1990-05-01	80.6616862326574
1990-06-01	80.5205888628120
1990-07-01	80.4862444017914
1990-08-01	79.9574014909478
1990-09-01	80.4084237396299
1990-10-01	80.7226354941552
1990-11-01	80.1189464740866
1990-12-01	79.8726114649682
1991-01-01	79.1984732824428
1991-02-01	79.2657045840408
1991-03-01	80.3473104616688
1991-04-01	80.6137566137566
1991-05-01	80.8960270498732
1991-06-01	81.0810810810811
1991-07-01	80.9755067567568
1991-08-01	80.7676086039646
1991-09-01	80.9182813816344
1991-10-01	80.6988002525784
1991-11-01	80.5216659655027
1991-12-01	80.2902818679007
1992-01-01	79.9621132393180
1992-02-01	80.2526315789474
1992-03-01	80.5765993265993
1992-04-01	81.1078348778433
1992-05-01	81.3117511036368
1992-06-01	80.9653725078699
1992-07-01	81.3050776332354
1992-08-01	81.1740041928721
1992-09-01	80.9214659685864
1992-10-01	81.2683131017162
1992-11-01	81.2669872464980
1992-12-01	80.8577405857740
1993-01-01	79.9414960300878
1993-02-01	80.2131216046803
1993-03-01	80.6512210394490
1993-04-01	81.1352253756260
1993-05-01	81.5679733110926
1993-06-01	81.4127943321525
1993-07-01	81.5323755985842
1993-08-01	81.2565009361348
1993-09-01	81.2058212058212
1993-10-01	81.4968814968815
1993-11-01	81.2915282392026
1993-12-01	80.8841843088418
1994-01-01	80.0539643005396
1994-02-01	80.0788545341357
1994-03-01	80.4852758191622
1994-04-01	81.0917393109174
1994-05-01	81.4623032311516
1994-06-01	81.3004762890868
1994-07-01	81.4040173949058
1994-08-01	81.4232519652462
1994-09-01	81.1944616656334
1994-10-01	80.9504132231405
1994-11-01	80.7231404958678
1994-12-01	80.5245766212309
1995-01-01	79.7110423116615
1995-02-01	79.6407185628742
1995-03-01	80.3258403794597
1995-04-01	80.7970266363824
1995-05-01	80.9278350515464
1995-06-01	81.1701689328389
1995-07-01	81.5333882934872
1995-08-01	81.3143798928719
1995-09-01	81.4532729518320
1995-10-01	81.2422871246401
1995-11-01	80.7810894141829
1995-12-01	80.4978399506274
1996-01-01	79.8849393877132
1996-02-01	79.8067036808554
1996-03-01	80.3784450843274
1996-04-01	81.0983134512546
1996-05-01	81.2731006160164
1996-06-01	81.6129694233532
1996-07-01	81.7118226600985
1996-08-01	81.5627563576702
1996-09-01	81.3767670559312
1996-10-01	81.2576812781647
1996-11-01	80.9172809172809
1996-12-01	80.9299467431381
1997-01-01	80.4529687818812
1997-02-01	80.3513071895425
1997-03-01	80.9630687614772
1997-04-01	81.3967735348172
1997-05-01	81.8144750254842
1997-06-01	81.8126272912424
1997-07-01	81.5848441637808
1997-08-01	81.2092833876222
1997-09-01	80.9843400447427
1997-10-01	81.0046776489730
1997-11-01	80.6464728603375
1997-12-01	80.6714140386572
1998-01-01	80.1422764227642
1998-02-01	79.8495323302155
1998-03-01	80.4952303633042
1998-04-01	80.8778703515546
1998-05-01	81.3528336380256
1998-06-01	81.4085650497260
1998-07-01	81.1041201542521
1998-08-01	80.9291945627916
1998-09-01	80.7583130575831
1998-10-01	80.7583130575831
1998-11-01	80.5471124620061
1998-12-01	80.4541768045418
1999-01-01	80.1539084649656
1999-02-01	79.7850770478508
1999-03-01	80.1014198782961
1999-04-01	80.4299330764551
1999-05-01	80.9562398703404
1999-06-01	80.9890555330361
1999-07-01	80.5955033421106
1999-08-01	80.6843490585139
1999-09-01	80.7365439093484
1999-10-01	80.7326452135195
1999-11-01	80.3925536220154
1999-12-01	80.1902063941724
2000-01-01	79.6397490386562
2000-02-01	79.3968832220198
2000-03-01	79.8947155294594
2000-04-01	80.2026342451874
2000-05-01	80.6072874493927
2000-06-01	80.3195792880259
2000-07-01	80.1376796922454
2000-08-01	80.3036437246964
2000-09-01	80.4167509609549
2000-10-01	80.5825242718446
2000-11-01	80.5095026283866
2000-12-01	80.1011122345804
2001-01-01	79.1868932038835
2001-02-01	79.1691995947315
2001-03-01	79.7934804616319
2001-04-01	80.1053484602917
2001-05-01	80.2671523982999
2001-06-01	79.9554565701559
2001-07-01	79.8987854251012
2001-08-01	80.1619433198381
2001-09-01	79.6033994334278
2001-10-01	79.5509708737864
2001-11-01	79.5633717404488
2001-12-01	79.2113245702730
2002-01-01	78.5150718187336
2002-02-01	78.4715183458342
2002-03-01	79.1810257449828
2002-04-01	79.3061472915399
2002-05-01	79.2460478313741
2002-06-01	79.3152350081037
2002-07-01	79.4242854246908
2002-08-01	79.6472734644233
2002-09-01	79.1700404858300
2002-10-01	79.2670581089289
2002-11-01	78.7915652879156
2002-12-01	78.5670793586361
2003-01-01	78.0596711995129
2003-02-01	77.9357984559122
2003-03-01	78.6409736308316
2003-04-01	78.9559211862686
2003-05-01	79.3383397605034
2003-06-01	79.2823839448611
2003-07-01	78.9046653144016
2003-08-01	78.8512279277451
2003-09-01	78.7380807466017
2003-10-01	78.6685609904607
2003-11-01	78.6685609904607
2003-12-01	78.3739837398374
2004-01-01	77.6649746192894
2004-02-01	77.5223759153784
2004-03-01	77.8613539337264
2004-04-01	78.5772357723577
2004-05-01	78.7151860134174
2004-06-01	78.5132382892057
2004-07-01	78.5947046843177
2004-08-01	78.7169042769858
2004-09-01	78.2661782661783
2004-10-01	78.3255245467509
2004-11-01	78.2776872964169
2004-12-01	78.0651731160896
2005-01-01	77.7007745617611
2005-02-01	77.4219865388538
2005-03-01	77.8322106552358
2005-04-01	78.3408255006130
2005-05-01	78.6209710322317
2005-06-01	78.5830951408738
2005-07-01	78.5422621478154
2005-08-01	78.5086823289070
2005-09-01	78.9301755818701
2005-10-01	79.0645424836601
2005-11-01	78.4181483752299
2005-12-01	78.0253475061325
2006-01-01	77.8596275833845
2006-02-01	77.7345350266284
2006-03-01	78.2777664143997
2006-04-01	78.6710418375718
2006-05-01	79.0368852459016
2006-06-01	79.0292852754454
2006-07-01	78.6928908010654
2006-08-01	78.7984416649580
2006-09-01	78.9506046320967
2006-10-01	79.0163934426230
2006-11-01	78.4587005533921
2006-12-01	78.0717948717949
2007-01-01	77.8073770491803
2007-02-01	78.2769230769231
2007-03-01	78.6945812807882
2007-04-01	79.2197125256674
2007-05-01	79.4455852156058
2007-06-01	79.3592113370302
2007-07-01	78.9938398357290
2007-08-01	78.9235825801150
2007-09-01	79.0673788003287
2007-10-01	79.1247174851038
2007-11-01	78.7006578947368
2007-12-01	78.3011106540518
2008-01-01	78.2053920559786
2008-02-01	78.3728115345005
2008-03-01	78.4168212739641
2008-04-01	79.0429042904290
2008-05-01	79.6246648793566
2008-06-01	79.0266034233863
2008-07-01	78.5891089108911
2008-08-01	79.1211058386631
2008-09-01	78.8528987002269
2008-10-01	78.8854489164086
2008-11-01	78.7484510532838
2008-12-01	78.4046290555900
2009-01-01	78.1178903826267
2009-02-01	77.9548747671290
2009-03-01	78.1780538302277
2009-04-01	78.7947815282667
2009-05-01	78.9931634555625
2009-06-01	78.3716594157862
2009-07-01	78.2383419689119
2009-08-01	78.3951897159444
2009-09-01	78.3122537839519
2009-10-01	78.3077561177934
2009-11-01	77.8999792488068
2009-12-01	77.5955149501661
2010-01-01	77.8008729993764
2010-02-01	77.4656679151061
2010-03-01	78.1803039766812
2010-04-01	78.5535639849938
2010-05-01	78.4375000000000
2010-06-01	78.5163575744947
2010-07-01	78.2037924567618
2010-08-01	78.2363977485929
2010-09-01	78.4448613716906
2010-10-01	78.2182349259336
2010-11-01	77.8334376956794
2010-12-01	77.7777777777778
2011-01-01	77.7220480668756
2011-02-01	77.7568528980958
2011-03-01	77.8458844133100
2011-04-01	78.4713096802453
2011-05-01	78.4979198598642
2011-06-01	78.2084975908892
2011-07-01	77.9141104294479
2011-08-01	77.7436347673398
2011-09-01	77.7334732423924
2011-10-01	77.7544596012592
2011-11-01	77.8081041360487
2011-12-01	77.6890756302521
2012-01-01	77.4301209845640
2012-02-01	77.3647943203174
2012-03-01	77.4759715837860
2012-04-01	77.8590842567426
2012-05-01	77.8359146086229
2012-06-01	78.0870657178736
2012-07-01	77.6731533793681
2012-08-01	77.6940782590500
2012-09-01	77.8824021761875
2012-10-01	78.0661364587694
2012-11-01	77.6591289782244
2012-12-01	77.0907566547894
2013-01-01	77.3652192154395
2013-02-01	77.3462103716145
2013-03-01	77.4159663865546
2013-04-01	77.9482867353374
2013-05-01	78.1558496114262
2013-06-01	78.2471626733922
2013-07-01	77.8735028367304
2013-08-01	78.0533949968468
2013-09-01	77.9995797436436
2013-10-01	77.9155284723681
2013-11-01	77.8642001261299
2013-12-01	77.2497897392767
2014-01-01	77.2354302545761
2014-02-01	77.3215413771320
2014-03-01	77.8292939936776
2014-04-01	78.0775716694772
2014-05-01	78.3396544458491
2014-06-01	78.2297154899894
2014-07-01	77.9346680716544
2014-08-01	78.1618887015177
2014-09-01	78.2132321955331
2014-10-01	77.9089376053963
2014-11-01	77.5036896479022
2014-12-01	77.5152921324615
2015-01-01	77.7449324324324
2015-02-01	77.8059606848446
2015-03-01	77.7448698963402
2015-04-01	77.7660249629786
2015-05-01	78.0787134997884
2015-06-01	78.2737465623017
2015-07-01	77.9517562420652
2015-08-01	78.0859623120898
2015-09-01	78.5699174952401
2015-10-01	78.3446232006774
2015-11-01	77.9542566709022
2015-12-01	78.0720338983051
2016-01-01	78.0322307039864
2016-02-01	77.8840025493945
2016-03-01	77.6455588610285
2016-04-01	78.3755049968106
2016-05-01	78.8432915160536
2016-06-01	78.7369763980438
2016-07-01	78.3921735431731
2016-08-01	78.6459442197147
2016-09-01	78.9350372736954
2016-10-01	78.9776357827476
2016-11-01	78.6536003408607
2016-12-01	78.8272921108742
2017-01-01	78.5562180579216
2017-02-01	78.0123693751333
2017-03-01	77.9556124626547
2017-04-01	78.5134557881247
2017-05-01	79.1204099060632
2017-06-01	79.0563620836892
2017-07-01	78.8765484835540
2017-08-01	79.0643024994659
2017-09-01	79.1969243912858
2017-10-01	79.1497543259987
2017-11-01	78.7256788539662
2017-12-01	78.7197602226504
2018-01-01	78.9034054401371
2018-02-01	78.8807890222984
2018-03-01	79.0987124463519
2018-04-01	79.7079665020399
2018-05-01	80.0987548303993
2018-06-01	80.0300300300300
2018-07-01	79.6391752577320
2018-08-01	79.9054373522459
2018-09-01	79.9742157284057