Month	Percent
1978-02-01	6.07264724358521
1978-03-01	5.63779551681039
1978-04-01	5.40308032704063
1978-05-01	5.48382962140509
1978-06-01	5.09446480108966
1978-07-01	4.60100454970963
1978-08-01	4.77444027724213
1978-09-01	4.67515618067739
1978-10-01	4.35438023520117
1978-11-01	4.50399143528354
1978-12-01	3.91978102387648
1979-01-01	4.69995371664127
1979-02-01	5.63905624000162
1979-03-01	5.34190040845080
1979-04-01	5.45340314498658
1979-05-01	4.67363638061057
1979-06-01	4.66712083958688
1979-07-01	4.93738745413329
1979-08-01	4.75781326467780
1979-09-01	5.15330184370449
1979-10-01	5.17189585041018
1979-11-01	4.72933496294986
1979-12-01	4.63584398088007
1980-01-01	4.34524600415817
1980-02-01	5.54377412893404
1980-03-01	5.17121302942870
1980-04-01	5.05793407040880
1980-05-01	4.65193042339177
1980-06-01	4.97233761338367
1980-07-01	4.49242715082328
1980-08-01	4.43402061321947
1980-09-01	4.96004432343205
1980-10-01	4.67233661091870
1980-11-01	4.48435310673837
1980-12-01	4.58403274151507
1981-01-01	4.39704403086670
1981-02-01	5.18277808131922
1981-03-01	5.51664799955915
1981-04-01	4.88111266362376
1981-05-01	4.82414559727218
1981-06-01	4.44141633950979
1981-07-01	4.23915624855193
1981-08-01	4.64424369513571
1981-09-01	4.59028306124006
1981-10-01	4.60394780632670
1981-11-01	4.68154249088132
1981-12-01	4.58950856565018
1982-01-01	4.35809947018458
1982-02-01	5.94674637940087
1982-03-01	5.79298127897772
1982-04-01	5.53261327716842
1982-05-01	5.51545831261839
1982-06-01	5.53221708306430
1982-07-01	5.26904182855486
1982-08-01	5.14971346068564
1982-09-01	5.78743884917847
1982-10-01	6.19923932608764
1982-11-01	5.96996584087364
1982-12-01	6.23503605859909
1983-01-01	5.92950085449910
1983-02-01	7.82302043363386
1983-03-01	7.95282563148368
1983-04-01	7.45022494088855
1983-05-01	7.75416837050922
1983-06-01	7.55181616372664
1983-07-01	7.20387947162649
1983-08-01	6.99305927179045
1983-09-01	7.84481398324927
1983-10-01	6.96557323358708
1983-11-01	6.41331801809858
1983-12-01	6.33308520844622
1984-01-01	6.33610790026500
1984-02-01	7.65221783105982
1984-03-01	7.85434789080458
1984-04-01	7.69718803375884
1984-05-01	6.67743831829903
1984-06-01	6.73724733214462
1984-07-01	6.10599761922093
1984-08-01	5.68111067462741
1984-09-01	6.28729251616575
1984-10-01	5.99263300551910
1984-11-01	5.60225102890311
1984-12-01	5.60088760252839
1985-01-01	5.84027937468826
1985-02-01	6.82733217245120
1985-03-01	7.11120828583355
1985-04-01	6.68342910959147
1985-05-01	6.27320620131899
1985-06-01	6.29291973738886
1985-07-01	5.69416052610884
1985-08-01	5.72980754490434
1985-09-01	6.08952898488652
1985-10-01	5.85162133991036
1985-11-01	5.77518553110455
1985-12-01	5.46469207060465
1986-01-01	5.51501790515647
1986-02-01	7.24862138673266
1986-03-01	7.17824380955639
1986-04-01	6.34316081082018
1986-05-01	6.15124317434129
1986-06-01	5.86193531196409
1986-07-01	6.01262153361310
1986-08-01	6.05960792326072
1986-09-01	6.37556636316018
1986-10-01	5.82261577158774
1986-11-01	5.52275027525282
1986-12-01	5.51948800973772
1987-01-01	5.65533454845651
1987-02-01	6.82865617096363
1987-03-01	7.37022956081672
1987-04-01	6.94758443552446
1987-05-01	6.42513177053895
1987-06-01	5.78489158360208
1987-07-01	5.84541366074676
1987-08-01	5.99769220219705
1987-09-01	5.75384260279335
1987-10-01	5.68365216030844
1987-11-01	5.45773608896214
1987-12-01	5.58024094382884
1988-01-01	5.79491667054102
1988-02-01	6.65922963416209
1988-03-01	6.63229646404806
1988-04-01	6.87435019498232
1988-05-01	6.39322987916875
1988-06-01	5.78807846230686
1988-07-01	5.12170382593399
1988-08-01	5.07418993564199
1988-09-01	5.66190696285866
1988-10-01	5.04252064626302
1988-11-01	5.07316889776183
1988-12-01	4.97931328103493
1989-01-01	5.61160949097010
1989-02-01	5.94024042210128
1989-03-01	5.57854464674499
1989-04-01	5.55482919895942
1989-05-01	5.26009233685225
1989-06-01	4.72814773796586
1989-07-01	4.66290407818279
1989-08-01	4.50927109675435
1989-09-01	4.75974066868985
1989-10-01	4.60034963451541
1989-11-01	4.66185382825191
1989-12-01	4.39925059376786
1990-01-01	4.64137049539728
1990-02-01	5.85911249412123
1990-03-01	5.11172532164984
1990-04-01	4.80584166177970
1990-05-01	5.01173762071743
1990-06-01	5.37722672858427
1990-07-01	5.03560927627278
1990-08-01	5.24860501849946
1990-09-01	5.47029379911372
1990-10-01	5.22779234226989
1990-11-01	5.09564560438953
1990-12-01	5.23349599211005
1991-01-01	5.86293276622469
1991-02-01	7.08475054167653
1991-03-01	7.08457429895091
1991-04-01	7.40311521536075
1991-05-01	6.66298237862764
1991-06-01	6.32243603321470
1991-07-01	6.67063346417945
1991-08-01	6.23843798084415
1991-09-01	7.10975264747964
1991-10-01	6.52917300962440
1991-11-01	6.65810600732418
1991-12-01	6.94345217045047
1992-01-01	7.48017539463328
1992-02-01	8.16929258855252
1992-03-01	7.66559800930303
1992-04-01	7.60309137619406
1992-05-01	7.17358092186756
1992-06-01	7.25638975127272
1992-07-01	7.25909316617198
1992-08-01	6.66503262246772
1992-09-01	7.41659146453534
1992-10-01	7.26058461423879
1992-11-01	6.98899971895130
1992-12-01	7.50812817024337
1993-01-01	7.58237237387383
1993-02-01	8.68640026102756
1993-03-01	8.18212644099241
1993-04-01	7.46773722561820
1993-05-01	7.29885860060816
1993-06-01	7.37774135588998
1993-07-01	7.45347408778054
1993-08-01	7.64236879386905
1993-09-01	7.71367996084206
1993-10-01	7.58375812515580
1993-11-01	7.77258728266693
1993-12-01	7.32694896061796
1994-01-01	7.32470978722986
1994-02-01	8.45196195015345
1994-03-01	7.55790127915248
1994-04-01	7.44690778204551
1994-05-01	7.08658303399433
1994-06-01	7.03715204428607
1994-07-01	7.00506814451403
1994-08-01	6.71766393864704
1994-09-01	6.98983291916091
1994-10-01	6.68670687945350
1994-11-01	6.78590512980818
1994-12-01	6.65663428768469
1995-01-01	6.54243320557080
1995-02-01	7.46973201972624
1995-03-01	6.96403709342783
1995-04-01	5.93777484996992
1995-05-01	5.63280254203248
1995-06-01	5.71021282966906
1995-07-01	5.63192284314136
1995-08-01	5.65608137288248
1995-09-01	5.84238240009306
1995-10-01	5.69674488622657
1995-11-01	5.83559868512093
1995-12-01	5.17856509676433
1996-01-01	5.74272148125310
1996-02-01	6.74363340343356
1996-03-01	6.26402102139964
1996-04-01	6.41639512157276
1996-05-01	6.27654652915886
1996-06-01	6.15375418361219
1996-07-01	6.07384758971650
1996-08-01	6.20507747209609
1996-09-01	6.52496743833598
1996-10-01	6.37757627967595
1996-11-01	6.12850909262074
1996-12-01	6.10224970196226
1997-01-01	6.77150722760087
1997-02-01	7.45106296032793
1997-03-01	6.72928684219793
1997-04-01	6.57135405300887
1997-05-01	6.42323109065800
1997-06-01	6.01908559571767
1997-07-01	5.86318584708482
1997-08-01	6.20554243338680
1997-09-01	5.95852476944156
1997-10-01	5.75230992305841
1997-11-01	5.45689551114119
1997-12-01	5.42560887720213
1998-01-01	5.78252897713613
1998-02-01	6.60995314187588
1998-03-01	6.15341845863048
1998-04-01	5.72896197883442
1998-05-01	5.72489986840309
1998-06-01	5.56602002401319
1998-07-01	5.45694594091006
1998-08-01	5.39516748970841
1998-09-01	5.76917050538639
1998-10-01	5.15518865019143
1998-11-01	5.34448918276527
1998-12-01	4.90056323269482
1999-01-01	5.29281465114775
1999-02-01	6.02280701791591
1999-03-01	5.58064269246961
1999-04-01	5.25049119834434
1999-05-01	5.14004641023103
1999-06-01	4.92263662300833
1999-07-01	4.71268407083217
1999-08-01	4.99444075143992
1999-09-01	5.30167297480692
1999-10-01	4.80090935967955
1999-11-01	4.49476418347435
1999-12-01	4.70045298884194
2000-01-01	5.18548974326228
2000-02-01	6.03679050641486
2000-03-01	5.62141774723724
2000-04-01	5.16951647470147
2000-05-01	5.06752389387409
2000-06-01	4.58663156261928
2000-07-01	4.03851044309280
2000-08-01	3.97628505818137
2000-09-01	4.22429431062550
2000-10-01	4.08401088532894
2000-11-01	4.39389460446326
2000-12-01	4.06811273196041
2001-01-01	4.36802865004934
2001-02-01	5.26907355474644
2001-03-01	4.85414268621391
2001-04-01	5.15586791329924
2001-05-01	5.06495051108608
2001-06-01	5.00230518676692
2001-07-01	4.40137222257756
2001-08-01	4.89129381934659
2001-09-01	5.07466409264280
2001-10-01	5.16615473239423
2001-11-01	4.79732711532024
2001-12-01	4.84913202098413
2002-01-01	5.45742383107907
2002-02-01	5.39033634843523
2002-03-01	4.77299555793821
2002-04-01	4.71392970740280
2002-05-01	4.72494973372008
2002-06-01	4.83853953755387
2002-07-01	4.40607931413980
2002-08-01	4.44981307124405
2002-09-01	4.74249584621688
2002-10-01	4.31716955790140
2002-11-01	4.48545581614037
2002-12-01	4.47271952911194
2003-01-01	4.86313793963390
2003-02-01	5.21731686592240
2003-03-01	5.13781866098925
2003-04-01	4.60672995662634
2003-05-01	4.75381180551620
2003-06-01	4.62829607166220
2003-07-01	4.46956016672543
2003-08-01	4.42781181950484
2003-09-01	4.62142767978207
2003-10-01	4.19639661470580
2003-11-01	4.18299205219573
2003-12-01	4.22115829095879
2004-01-01	4.40681032133619
2004-02-01	5.29207030243278
2004-03-01	4.53699771131373
2004-04-01	4.41752239306120
2004-05-01	4.16908065689824
2004-06-01	4.26266710958222
2004-07-01	4.07745618243203
2004-08-01	4.07594194677633
2004-09-01	3.99605126964750
2004-10-01	3.53930648794691
2004-11-01	3.63817580800351
2004-12-01	3.44436630826191
2005-01-01	4.00524028791476
2005-02-01	4.78883522516825
2005-03-01	4.39710113698099
2005-04-01	4.00237304266887
2005-05-01	4.21288862653678
2005-06-01	3.95454571020483
2005-07-01	3.67488839666936
2005-08-01	3.55608077304016
2005-09-01	3.72753117007210
2005-10-01	3.59074440581972
2005-11-01	3.50395181872035
2005-12-01	3.58422314022648
2006-01-01	4.33050388528660
2006-02-01	4.54805762787432
2006-03-01	4.17894575842317
2006-04-01	4.06633823066760
2006-05-01	3.87873854461411
2006-06-01	3.85120852264256
2006-07-01	3.42701555584134
2006-08-01	3.46993863768134
2006-09-01	3.56778991581951
2006-10-01	3.33204142610527
2006-11-01	3.19120142780930
2006-12-01	3.52250462191588
2007-01-01	3.89652378482728
2007-02-01	4.64519873891975
2007-03-01	4.14018235561775
2007-04-01	3.91326958994591
2007-05-01	3.69888321298004
2007-06-01	3.75993225049738
2007-07-01	3.46257460155280
2007-08-01	3.40391628487483
2007-09-01	3.49297007023468
2007-10-01	3.35864348364700
2007-11-01	3.22261849670139
2007-12-01	3.08358204719768
2008-01-01	3.77978610823644
2008-02-01	4.11793896200801
2008-03-01	3.55562873893797
2008-04-01	3.47809607440934
2008-05-01	3.50341025870189
2008-06-01	3.54654063670190
2008-07-01	3.37232237930030
2008-08-01	3.49188035339146
2008-09-01	3.69715419593447
2008-10-01	3.52738647302151
2008-11-01	3.62930847453765
2008-12-01	3.23883267325948
2009-01-01	3.85583218994309
2009-02-01	4.98868547973238
2009-03-01	4.66099311162386
2009-04-01	4.11757858211262
2009-05-01	4.18972481085467
2009-06-01	4.18712850254341
2009-07-01	3.93073091054493
2009-08-01	4.26691460683806
2009-09-01	4.38344895183448
2009-10-01	4.17777053992554
2009-11-01	4.00002228855464
2009-12-01	3.92120219721622
2010-01-01	4.22949988568250
2010-02-01	4.53771103920202
2010-03-01	4.24308397447018
2010-04-01	4.36661598287264
2010-05-01	4.01573482563324
2010-06-01	3.87435749800973
2010-07-01	3.84953836750244
2010-08-01	3.80403691232401
2010-09-01	3.97722176169963
2010-10-01	3.88101851052776
2010-11-01	3.92436609702191
2010-12-01	3.71101047778522
2011-01-01	4.10054792531654
2011-02-01	4.33600905690782
2011-03-01	4.27148689704370
2011-04-01	3.94745223191366
2011-05-01	4.08559832343742
2011-06-01	3.97076206522651
2011-07-01	3.93733504183315
2011-08-01	4.18071570519246
2011-09-01	4.17724478020150
2011-10-01	3.90486287790252
2011-11-01	3.75145282816904
2011-12-01	3.86966608475898
2012-01-01	3.96776820873039
2012-02-01	4.60353856195891
2012-03-01	4.26480899369300
2012-04-01	4.13587478406279
2012-05-01	4.14517603841624
2012-06-01	4.13489475146999
2012-07-01	3.69517864167653
2012-08-01	3.79641150672564
2012-09-01	4.06863534774184
2012-10-01	3.99560551955887
2012-11-01	3.94394413784651
2012-12-01	3.94964389998513
2013-01-01	4.21347181725616
2013-02-01	4.64241778167410
2013-03-01	4.71252741597819
2013-04-01	4.63462482131887
2013-05-01	4.66947899518466
2013-06-01	4.45149086611087
2013-07-01	4.14582581519722
2013-08-01	4.31533973803412
2013-09-01	4.28081535596144
2013-10-01	3.92306918824578
2013-11-01	4.03035237322565
2013-12-01	4.07122909077558
2014-01-01	4.90992443409453
2014-02-01	5.58458204192285
2014-03-01	5.16090895673520
2014-04-01	4.51591852408231
2014-05-01	4.68554626725647
2014-06-01	4.79986669900805
2014-07-01	4.81297248761396
2014-08-01	4.76467521974723
2014-09-01	4.80151244944195
2014-10-01	4.73758782199341
2014-11-01	4.37868028893310
2014-12-01	4.43690780358689
2015-01-01	4.98170131694505
2015-02-01	5.24921330227657
2015-03-01	5.10441600209647
2015-04-01	4.97671095783318
2015-05-01	4.71575665659677
2015-06-01	4.69286287534069
2015-07-01	5.11162727635374
2015-08-01	4.69410215423974
2015-09-01	4.77139522349455
2015-10-01	4.51707327369567
2015-11-01	4.56874248791824
2015-12-01	4.43376326970809
2016-01-01	5.24488797955944
2016-02-01	5.35216897123278
2016-03-01	4.97559634318683
2016-04-01	4.70484096234033
2016-05-01	4.70365898828538
2016-06-01	4.63414854873043
2016-07-01	4.36452564275369
2016-08-01	4.35975804508995
2016-09-01	4.26340316639854
2016-10-01	4.24118293654011
2016-11-01	4.12008123646960
2016-12-01	4.21167670834742
2017-01-01	4.98558962899395
2017-02-01	5.33044480099019
2017-03-01	5.09827786546424
2017-04-01	4.80739992380630
2017-05-01	4.41227966869961
2017-06-01	4.37233912753845
2017-07-01	4.27591578956269
2017-08-01	4.23807903845403
2017-09-01	4.10389015600473
2017-10-01	4.09854578163913
2017-11-01	3.95049289903641
2017-12-01	4.04161527550268
2018-01-01	4.64502706362654
2018-02-01	4.64705055934652
2018-03-01	4.72087609263192
2018-04-01	4.50658101700716
2018-05-01	4.41877154560638
2018-06-01	4.28173980625039
2018-07-01	4.24986021742904
2018-08-01	4.30798079623260
2018-09-01	3.86261734187050