Month	Percent
1968-01-01	61.2191958495460
1968-02-01	60.2846054333764
1968-03-01	62.8387096774194
1968-04-01	65.5927835051546
1968-05-01	67.0527670527670
1968-06-01	67.0951156812339
1968-07-01	66.4955070603338
1968-08-01	66.9230769230769
1968-09-01	67.0076726342711
1968-10-01	66.7091836734694
1968-11-01	65.3503184713376
1968-12-01	62.8498727735369
1969-01-01	61.0899873257288
1969-02-01	61.3147914032870
1969-03-01	63.6020151133501
1969-04-01	65.5345911949686
1969-05-01	67.5031367628607
1969-06-01	67.1679197994988
1969-07-01	65.7500000000000
1969-08-01	66.0424469413234
1969-09-01	66.8742216687422
1969-10-01	66.7080745341615
1969-11-01	64.6401985111662
1969-12-01	62.0347394540943
1970-01-01	61.4338689740420
1970-02-01	61.3580246913580
1970-03-01	62.5615763546798
1970-04-01	64.8648648648649
1970-05-01	65.7668711656442
1970-06-01	67.1568627450980
1970-07-01	66.5850673194614
1970-08-01	65.0793650793651
1970-09-01	65.8952496954933
1970-10-01	65.2490886998785
1970-11-01	63.3495145631068
1970-12-01	61.2393681652491
1971-01-01	61.0169491525424
1971-02-01	60.9903381642512
1971-03-01	62.6201923076923
1971-04-01	65.2278177458034
1971-05-01	66.4670658682635
1971-06-01	66.9856459330144
1971-07-01	65.9904534606205
1971-08-01	65.5542312276520
1971-09-01	66.2306777645660
1971-10-01	66.5480427046264
1971-11-01	64.7686832740214
1971-12-01	62.1140142517815
1972-01-01	60.4265402843602
1972-02-01	59.7139451728248
1972-03-01	61.5201900237530
1972-04-01	64.4128113879004
1972-05-01	65.7582938388626
1972-06-01	64.5314353499407
1972-07-01	65.2941176470588
1972-08-01	64.7473560517039
1972-09-01	64.1598119858989
1972-10-01	64.5614035087719
1972-11-01	62.5000000000000
1972-12-01	61.5654205607477
1973-01-01	61.6102683780630
1973-02-01	61.1888111888112
1973-03-01	62.2969837587007
1973-04-01	63.6469221835076
1973-05-01	63.9211136890951
1973-06-01	64.9305555555556
1973-07-01	65.1620370370370
1973-08-01	64.6242774566474
1973-09-01	64.7398843930636
1973-10-01	66.5895953757225
1973-11-01	65.0867052023121
1973-12-01	62.0809248554913
1974-01-01	60.5536332179931
1974-02-01	61.0149942329873
1974-03-01	62.3271889400922
1974-04-01	63.7096774193548
1974-05-01	64.1705069124424
1974-06-01	64.4752018454441
1974-07-01	64.4752018454441
1974-08-01	64.1705069124424
1974-09-01	64.1379310344828
1974-10-01	64.7126436781609
1974-11-01	62.5717566016074
1974-12-01	60.9392898052692
1975-01-01	59.6351197263398
1975-02-01	59.6131968145620
1975-03-01	61.7480136208854
1975-04-01	63.1101021566402
1975-05-01	64.5927601809955
1975-06-01	64.2212189616253
1975-07-01	64.7125140924464
1975-08-01	64.6794150731159
1975-09-01	64.1573033707865
1975-10-01	63.8608305274972
1975-11-01	62.5560538116592
1975-12-01	60.9182530795073
1976-01-01	60.0446428571428
1976-02-01	60.0000000000000
1976-03-01	61.4525139664804
1976-04-01	63.4037819799778
1976-05-01	64.4839067702553
1976-06-01	64.0000000000000
1976-07-01	64.5625692137320
1976-08-01	64.6733111849391
1976-09-01	65.0442477876106
1976-10-01	64.4591611479029
1976-11-01	62.6240352811466
1976-12-01	60.2422907488987
1977-01-01	59.1208791208791
1977-02-01	59.2307692307692
1977-03-01	60.2844638949672
1977-04-01	62.4043715846994
1977-05-01	63.7949836423119
1977-06-01	64.3790849673203
1977-07-01	64.0914036996736
1977-08-01	63.7350705754615
1977-09-01	63.8136511375948
1977-10-01	63.0952380952381
1977-11-01	63.2829373650108
1977-12-01	61.8122977346278
1978-01-01	59.1836734693878
1978-02-01	59.8501070663812
1978-03-01	61.3903743315508
1978-04-01	62.6467449306297
1978-05-01	65.0692225772098
1978-06-01	65.3887113951012
1978-07-01	63.8682252922423
1978-08-01	64.2629904559915
1978-09-01	64.5502645502646
1978-10-01	64.0591966173362
1978-11-01	63.5021097046414
1978-12-01	61.7894736842105
1979-01-01	60.2308499475341
1979-02-01	59.6858638743456
1979-03-01	61.5625000000000
1979-04-01	63.5416666666667
1979-05-01	64.9688149688150
1979-06-01	65.3526970954357
1979-07-01	64.8033126293996
1979-08-01	64.7362978283350
1979-09-01	64.0866873065016
1979-10-01	64.1975308641975
1979-11-01	63.1794871794872
1979-12-01	61.8219037871034
1980-01-01	59.6544715447154
1980-02-01	60.2434077079108
1980-03-01	62.6639757820383
1980-04-01	64.9899396378270
1980-05-01	64.8594377510040
1980-06-01	65.3653653653654
1980-07-01	65.0698602794411
1980-08-01	65.0398406374502
1980-09-01	64.5481628599801
1980-10-01	63.6633663366337
1980-11-01	62.4876604146101
1980-12-01	61.0236220472441
1981-01-01	59.8432908912830
1981-02-01	60.2926829268293
1981-03-01	61.7846750727449
1981-04-01	64.0579710144928
1981-05-01	64.3888354186718
1981-06-01	64.4913627639156
1981-07-01	63.8888888888889
1981-08-01	64.5315487571702
1981-09-01	64.2516682554814
1981-10-01	63.6622390891841
1981-11-01	62.7246925260170
1981-12-01	61.0744580584354
1982-01-01	59.4569288389513
1982-02-01	60.6343283582090
1982-03-01	62.8597957288765
1982-04-01	63.9146567717996
1982-05-01	65.3419593345656
1982-06-01	64.9446494464945
1982-07-01	64.7329650092081
1982-08-01	64.5871559633028
1982-09-01	63.6197440585009
1982-10-01	63.7192342752963
1982-11-01	62.9427792915531
1982-12-01	61.7059891107078
1983-01-01	61.5315315315315
1983-02-01	61.7040358744395
1983-03-01	62.4442462087422
1983-04-01	63.8790035587189
1983-05-01	65.5723158828749
1983-06-01	65.8407079646018
1983-07-01	65.1675485008818
1983-08-01	64.7936786654960
1983-09-01	65.2364273204904
1983-10-01	64.8389904264578
1983-11-01	63.9202081526453
1983-12-01	61.8841832324978
1984-01-01	60.2751504729149
1984-02-01	61.0445205479452
1984-03-01	62.7234042553192
1984-04-01	64.1221374045802
1984-05-01	64.2131979695432
1984-06-01	64.6711635750422
1984-07-01	64.1176470588235
1984-08-01	63.7049455155071
1984-09-01	64.2201834862385
1984-10-01	64.3333333333333
1984-11-01	62.9783693843594
1984-12-01	60.8623548922056
1985-01-01	60.1981833195706
1985-02-01	60.8731466227348
1985-03-01	62.7257799671593
1985-04-01	64.7829647829648
1985-05-01	65.2244897959184
1985-06-01	64.7346938775510
1985-07-01	64.0358014646054
1985-08-01	63.8798701298701
1985-09-01	64.3203883495146
1985-10-01	63.9741518578352
1985-11-01	62.4798711755234
1985-12-01	61.0441767068273
1986-01-01	60.4000000000000
1986-02-01	60.1910828025478
1986-03-01	61.8670886075949
1986-04-01	63.0708661417323
1986-05-01	63.7863315003928
1986-06-01	64.2072213500785
1986-07-01	64.2410015649452
1986-08-01	64.0685892439595
1986-09-01	64.2080745341615
1986-10-01	64.2635658914729
1986-11-01	63.0317092034029
1986-12-01	62.1329211746522
1987-01-01	61.0169491525424
1987-02-01	60.7828089025326
1987-03-01	61.7557251908397
1987-04-01	62.7570449352628
1987-05-01	64.6433990895296
1987-06-01	64.8260211800302
1987-07-01	63.7735849056604
1987-08-01	64.1566265060241
1987-09-01	64.5864661654135
1987-10-01	64.5474943904263
1987-11-01	63.5889798957558
1987-12-01	62.0535714285714
1988-01-01	61.5099925980755
1988-02-01	61.2831858407080
1988-03-01	62.5459896983076
1988-04-01	63.3627019089574
1988-05-01	64.1288433382138
1988-06-01	64.1550841258230
1988-07-01	63.8422205989774
1988-08-01	64.1867250182349
1988-09-01	64.6332607116921
1988-10-01	63.8143582306019
1988-11-01	62.7890173410405
1988-12-01	62.4277456647399
1989-01-01	61.5884476534296
1989-02-01	61.5550755939525
1989-03-01	63.1994261119082
1989-04-01	64.2550143266476
1989-05-01	64.7394718058530
1989-06-01	64.7184604419102
1989-07-01	64.7226173541963
1989-08-01	64.7977288857346
1989-09-01	64.7767540751240
1989-10-01	64.7558386411890
1989-11-01	64.4774011299435
1989-12-01	63.7455830388692
1990-01-01	62.0689655172414
1990-02-01	62.5263157894737
1990-03-01	64.3057503506311
1990-04-01	65.3361344537815
1990-05-01	65.8519553072626
1990-06-01	65.8519553072626
1990-07-01	66.3414634146342
1990-08-01	65.6011118832523
1990-09-01	65.5339805825243
1990-10-01	65.9059474412172
1990-11-01	65.2413793103448
1990-12-01	64.5962732919255
1991-01-01	63.8984214138641
1991-02-01	63.8603696098563
1991-03-01	65.5030800821355
1991-04-01	66.5526675786594
1991-05-01	66.6211604095563
1991-06-01	67.4164962508521
1991-07-01	67.3247106875426
1991-08-01	67.4371176070700
1991-09-01	67.1875000000000
1991-10-01	66.8478260869565
1991-11-01	66.2593346911066
1991-12-01	65.6250000000000
1992-01-01	65.1147098515520
1992-02-01	65.1178451178451
1992-03-01	65.7700067249496
1992-04-01	65.7258064516129
1992-05-01	66.3087248322148
1992-06-01	67.3141326188881
1992-07-01	66.5998663994656
1992-08-01	66.9559412550067
1992-09-01	67.4217188540973
1992-10-01	66.8662674650698
1992-11-01	66.7994687915006
1992-12-01	66.3793103448276
1993-01-01	65.0793650793651
1993-02-01	65.6332453825858
1993-03-01	66.2706270627063
1993-04-01	66.0949868073879
1993-05-01	67.4571805006588
1993-06-01	67.7653263019117
1993-07-01	67.4357284113382
1993-08-01	67.5016479894529
1993-09-01	67.2823218997362
1993-10-01	66.4026402640264
1993-11-01	65.8745874587459
1993-12-01	65.6538969616909
1994-01-01	64.7097625329815
1994-02-01	64.6011865524061
1994-03-01	65.5445544554456
1994-04-01	66.6005291005291
1994-05-01	66.7767503302510
1994-06-01	67.1513549239921
1994-07-01	67.2391017173052
1994-08-01	67.3051519154558
1994-09-01	66.5567282321900
1994-10-01	65.8986175115207
1994-11-01	65.7011191573404
1994-12-01	65.5694535878868
1995-01-01	64.8063033486540
1995-02-01	64.1311475409836
1995-03-01	65.9448818897638
1995-04-01	67.4098360655738
1995-05-01	67.1026814911707
1995-06-01	66.6884389288047
1995-07-01	66.4924885695624
1995-08-01	66.5143603133159
1995-09-01	67.3402868318122
1995-10-01	66.6232921275211
1995-11-01	66.0818713450292
1995-12-01	65.9090909090909
1996-01-01	64.8543689320388
1996-02-01	63.8009049773756
1996-03-01	64.7477360931436
1996-04-01	66.1707632600259
1996-05-01	66.9464170432537
1996-06-01	67.3324742268041
1996-07-01	67.5449871465296
1996-08-01	67.2225785760103
1996-09-01	67.4775928297055
1996-10-01	67.6245210727969
1996-11-01	67.1337579617834
1996-12-01	66.3486005089058
1997-01-01	65.3652392947103
1997-02-01	65.2419861722187
1997-03-01	66.1847894406034
1997-04-01	66.8761785040855
1997-05-01	67.6710608913999
1997-06-01	67.9197994987469
1997-07-01	68.0225281602002
1997-08-01	67.6047529706066
1997-09-01	66.7915106117353
1997-10-01	67.4360573923893
1997-11-01	67.0411985018726
1997-12-01	66.4379288833437
1998-01-01	66.1682242990654
1998-02-01	65.5686761963953
1998-03-01	66.5009322560597
1998-04-01	67.1845866998136
1998-05-01	68.2835820895522
1998-06-01	67.7839851024209
1998-07-01	67.6561533704391
1998-08-01	67.8593460826650
1998-09-01	67.5908810844116
1998-10-01	67.4046740467405
1998-11-01	66.6052793124616
1998-12-01	66.4825046040516
1999-01-01	66.4626682986536
1999-02-01	66.2186927306048
1999-03-01	67.0329670329670
1999-04-01	67.4390243902439
1999-05-01	67.8832116788321
1999-06-01	67.5790754257908
1999-07-01	67.2936893203884
1999-08-01	67.6559660811629
1999-09-01	68.0992736077482
1999-10-01	67.7750906892382
1999-11-01	66.7271627344223
1999-12-01	65.8802177858439
2000-01-01	65.9587378640777
2000-02-01	65.7766990291262
2000-03-01	65.8358662613982
2000-04-01	66.6869300911854
2000-05-01	66.8491484184915
2000-06-01	66.5246500304321
2000-07-01	66.3420572124163
2000-08-01	67.0724284844796
2000-09-01	67.8048780487805
2000-10-01	67.5824175824176
2000-11-01	66.2990196078431
2000-12-01	65.1747394236665
2001-01-01	65.3300431832202
2001-02-01	65.8204334365325
2001-03-01	66.2942271880819
2001-04-01	66.1481020535159
2001-05-01	65.8779576587796
2001-06-01	65.8156911581569
2001-07-01	65.9006211180124
2001-08-01	65.7976412166356
2001-09-01	66.1300309597523
2001-10-01	66.2962962962963
2001-11-01	65.6000000000000
2001-12-01	64.6371463714637
2002-01-01	65.2014652014652
2002-02-01	65.2650822669104
2002-03-01	65.5907429963459
2002-04-01	65.0851581508516
2002-05-01	65.5757575757576
2002-06-01	66.3043478260870
2002-07-01	65.6456456456456
2002-08-01	65.3500897666068
2002-09-01	65.8711217183771
2002-10-01	66.3101604278075
2002-11-01	65.2406417112299
2002-12-01	64.9258160237389
2003-01-01	65.2482269503546
2003-02-01	65.0588235294118
2003-03-01	65.9050966608084
2003-04-01	65.7309941520468
2003-05-01	65.5031995346132
2003-06-01	66.3578459756804
2003-07-01	66.2053056516724
2003-08-01	65.7471264367816
2003-09-01	66.3802978235968
2003-10-01	66.5715915573303
2003-11-01	66.2500000000000
2003-12-01	65.8356940509915
2004-01-01	65.0140845070423
2004-02-01	65.0561797752809
2004-03-01	65.8836689038031
2004-04-01	66.6481069042316
2004-05-01	65.8712541620422
2004-06-01	66.0022148394241
2004-07-01	66.5931642778390
2004-08-01	66.7215815485997
2004-09-01	66.5754923413567
2004-10-01	66.6121112929624
2004-11-01	66.1588683351469
2004-12-01	65.9620596205962
2005-01-01	66.3237682728749
2005-02-01	65.6030286641428
2005-03-01	65.8022690437601
2005-04-01	66.5407447382623
2005-05-01	66.9897684437264
2005-06-01	66.6487358795051
2005-07-01	67.0960815888352
2005-08-01	67.3272629887520
2005-09-01	67.5935828877005
2005-10-01	66.7735042735043
2005-11-01	66.4175120128137
2005-12-01	66.1341853035144
2006-01-01	66.2939297124601
2006-02-01	66.4715274081958
2006-03-01	66.6666666666667
2006-04-01	67.0744680851064
2006-05-01	68.1190223166844
2006-06-01	67.8874734607219
2006-07-01	67.3036093418259
2006-08-01	67.5690021231423
2006-09-01	67.9766330323951
2006-10-01	67.5172780435938
2006-11-01	67.6595744680851
2006-12-01	67.6595744680851
2007-01-01	67.6346356916579
2007-02-01	68.0570221752904
2007-03-01	67.8646934460888
2007-04-01	67.7231907025885
2007-05-01	68.8126649076517
2007-06-01	68.8126649076517
2007-07-01	68.7236286919831
2007-08-01	69.0928270042194
2007-09-01	68.8126649076517
2007-10-01	68.8654353562005
2007-11-01	69.0237467018470
2007-12-01	68.6015831134565
2008-01-01	68.3571051241416
2008-02-01	68.0761099365750
2008-03-01	68.4822845055526
2008-04-01	68.9582231623480
2008-05-01	69.7883597883598
2008-06-01	69.5928080380751
2008-07-01	68.9417989417989
2008-08-01	69.1371095817893
2008-09-01	69.5652173913044
2008-10-01	69.1449814126394
2008-11-01	68.9526847421584
2008-12-01	68.6170212765958
2009-01-01	68.7100213219616
2009-02-01	68.6065136145222
2009-03-01	68.6631016042781
2009-04-01	68.8805570433851
2009-05-01	69.3297587131367
2009-06-01	69.1318327974276
2009-07-01	68.8471849865952
2009-08-01	69.3297587131367
2009-09-01	69.5978552278820
2009-10-01	68.7935656836461
2009-11-01	68.6327077747989
2009-12-01	68.7566988210075
2010-01-01	68.9507494646681
2010-02-01	68.5760171306210
2010-03-01	68.6663095875736
2010-04-01	68.7533440342429
2010-05-01	69.1113490364026
2010-06-01	68.9304812834225
2010-07-01	68.6065136145222
2010-08-01	69.0336358782702
2010-09-01	69.9733333333333
2010-10-01	69.2430703624734
2010-11-01	68.5470995210218
2010-12-01	68.5805422647528
2011-01-01	68.6638388123012
2011-02-01	68.6077289571202
2011-03-01	69.3175711982805
2011-04-01	69.6351931330472
2011-05-01	69.7587131367292
2011-06-01	69.5978552278820
2011-07-01	68.8102893890675
2011-08-01	68.7600644122383
2011-09-01	68.1842244573849
2011-10-01	68.5577942735949
2011-11-01	68.9728579031400
2011-12-01	68.6734150239744
2012-01-01	68.1769722814499
2012-02-01	68.5195082843399
2012-03-01	68.4380032206119
2012-04-01	67.7072120559742
2012-05-01	68.3045356371490
2012-06-01	68.3640303358613
2012-07-01	68.0804785209353
2012-08-01	68.0327868852459
2012-09-01	67.9473106476400
2012-10-01	68.3572216097023
2012-11-01	69.0818584070796
2012-12-01	68.5698447893570
2013-01-01	68.7883863763261
2013-02-01	69.4506726457399
2013-03-01	69.7242543612831
2013-04-01	68.7747035573122
2013-05-01	68.9518413597734
2013-06-01	69.3007390562820
2013-07-01	69.3621867881549
2013-08-01	69.7714285714286
2013-09-01	69.8967889908257
2013-10-01	70.3277745830937
2013-11-01	70.8020773225620
2013-12-01	69.4621168305379
2014-01-01	70.2387885847408
2014-02-01	70.3682057276446
2014-03-01	70.6572769953052
2014-04-01	70.5120659211301
2014-05-01	70.8382526564345
2014-06-01	71.6232227488152
2014-07-01	71.2247324613555
2014-08-01	71.1389385807990
2014-09-01	71.4799281006591
2014-10-01	71.6947115384615
2014-11-01	71.5319662243667
2014-12-01	71.1864406779661
2015-01-01	71.7761557177616
2015-02-01	72.3001830384381
2015-03-01	72.0318237454100
2015-04-01	71.5686274509804
2015-05-01	71.6041794714198
2015-06-01	72.2906403940887
2015-07-01	72.7496917385943
2015-08-01	72.9128014842301
2015-09-01	73.3250620347394
2015-10-01	72.8855721393035
2015-11-01	72.4719101123596
2015-12-01	72.9662077596996
2016-01-01	72.9101194217473
2016-02-01	73.0599369085174
2016-03-01	73.3881163084703
2016-04-01	73.2742241925269
2016-05-01	73.2403297400127
2016-06-01	73.2698412698413
2016-07-01	73.5200509229790
2016-08-01	74.4585987261146
2016-09-01	74.9840459476707
2016-10-01	74.4245524296675
2016-11-01	73.6707238949391
2016-12-01	74.1500962155228
2017-01-01	74.8233782915864
2017-02-01	74.6134020618557
2017-03-01	74.5161290322581
2017-04-01	74.2727860374919
2017-05-01	75.2750809061489
2017-06-01	75.3078418664938
2017-07-01	75.2109020116807
2017-08-01	76.1038961038961
2017-09-01	76.8680961663418
2017-10-01	76.1223162003904
2017-11-01	75.9609120521173
2017-12-01	75.9452411994785
2018-01-01	76.3553233180928
2018-02-01	76.2589928057554
2018-03-01	76.6863130320891
2018-04-01	76.9986893840105
2018-05-01	76.9986893840105
2018-06-01	76.7213114754098
2018-07-01	76.6404199475066
2018-08-01	77.3622047244094
2018-09-01	77.8726198292843