Month	Percent
1978-02-01	3.41985303310626
1978-03-01	3.04016661301201
1978-04-01	3.69790963768482
1978-05-01	3.25232846847817
1978-06-01	1.65473801940201
1978-07-01	3.49732233703602
1978-08-01	2.68879706795903
1978-09-01	1.92240401864521
1978-10-01	2.20980766435335
1978-11-01	1.78277896498094
1978-12-01	2.14629590578836
1979-01-01	2.82640676968613
1979-02-01	2.80925120778610
1979-03-01	1.82732247862488
1979-04-01	2.76661256785164
1979-05-01	2.51205082308190
1979-06-01	2.24225890075234
1979-07-01	2.46078977298854
1979-08-01	2.29060766766319
1979-09-01	2.31674138680522
1979-10-01	2.43224564197573
1979-11-01	2.72420331814221
1979-12-01	2.79988211131794
1980-01-01	2.72711678120986
1980-02-01	2.68219287332005
1980-03-01	2.25611069110458
1980-04-01	2.10574221471216
1980-05-01	2.39819894646793
1980-06-01	2.57068689161297
1980-07-01	2.51780991839775
1980-08-01	2.59108041987407
1980-09-01	3.49609489793820
1980-10-01	2.52133922214433
1980-11-01	3.46365508307780
1980-12-01	2.71677363639750
1981-01-01	1.47804737482635
1981-02-01	2.02808867874982
1981-03-01	2.03878363445201
1981-04-01	2.48585789972608
1981-05-01	2.27506691274214
1981-06-01	1.86693718385063
1981-07-01	2.12526774495972
1981-08-01	2.39341002183685
1981-09-01	2.72127060675342
1981-10-01	1.99070083024704
1981-11-01	2.35297554813842
1981-12-01	2.11749922257991
1982-01-01	2.96611109446981
1982-02-01	2.39262501498726
1982-03-01	3.29397457174188
1982-04-01	2.93925694662927
1982-05-01	2.57720345823257
1982-06-01	2.39522225036083
1982-07-01	3.55657618303686
1982-08-01	3.00668173038892
1982-09-01	2.68639985556928
1982-10-01	3.08350964520424
1982-11-01	2.36691474338192
1982-12-01	2.87630070424401
1983-01-01	3.80953440213872
1983-02-01	3.44686454765900
1983-03-01	3.52336925570627
1983-04-01	3.73750972589116
1983-05-01	2.95603635558348
1983-06-01	2.77790329658675
1983-07-01	3.39694083698298
1983-08-01	2.85444134017078
1983-09-01	4.49058081378843
1983-10-01	3.04422054128671
1983-11-01	2.62909496692545
1983-12-01	2.30423306036521
1984-01-01	2.97794850039513
1984-02-01	3.60312970421596
1984-03-01	3.85510812160351
1984-04-01	3.85625067308447
1984-05-01	3.44788716895154
1984-06-01	3.43532372281947
1984-07-01	2.95611542951687
1984-08-01	2.97256841906183
1984-09-01	3.50586307556133
1984-10-01	2.80585283961948
1984-11-01	2.96312907719181
1984-12-01	3.16458511037201
1985-01-01	2.93578651282170
1985-02-01	3.35837609416816
1985-03-01	3.99078645712486
1985-04-01	3.51527396789741
1985-05-01	4.04360156352716
1985-06-01	4.32374893382161
1985-07-01	3.11477172779425
1985-08-01	2.79768763099756
1985-09-01	3.52617440178009
1985-10-01	3.29660055727923
1985-11-01	3.65567830502319
1985-12-01	3.38651786393790
1986-01-01	2.96393787337670
1986-02-01	3.78268414162092
1986-03-01	3.20994046828408
1986-04-01	4.38450338980751
1986-05-01	4.30070964809306
1986-06-01	3.58206805050307
1986-07-01	3.48557862765413
1986-08-01	3.34347230238450
1986-09-01	3.81430873062383
1986-10-01	3.28152325158829
1986-11-01	2.52872300610442
1986-12-01	3.90366040035079
1987-01-01	2.76238596559814
1987-02-01	2.72574749208188
1987-03-01	3.83330738045443
1987-04-01	3.41915080537740
1987-05-01	2.98492423593580
1987-06-01	3.30109081703511
1987-07-01	3.04609002199050
1987-08-01	2.21202464959207
1987-09-01	3.75342477203559
1987-10-01	4.20551155608716
1987-11-01	3.00749652291833
1987-12-01	3.35301012214416
1988-01-01	3.22321036551808
1988-02-01	3.61055629456439
1988-03-01	4.39045632419815
1988-04-01	4.35180769423925
1988-05-01	3.40623964704862
1988-06-01	3.05566596755314
1988-07-01	1.99958632195277
1988-08-01	2.96400379660021
1988-09-01	3.57947667829258
1988-10-01	2.96680229442648
1988-11-01	3.24762037092338
1988-12-01	2.87661336281638
1989-01-01	4.05667234954383
1989-02-01	3.73552561565762
1989-03-01	3.88605072528589
1989-04-01	3.76968151013580
1989-05-01	3.09925474010183
1989-06-01	2.04147567406274
1989-07-01	2.80506116724165
1989-08-01	2.60790680684868
1989-09-01	2.15559827969628
1989-10-01	2.79267777360903
1989-11-01	3.30800778471956
1989-12-01	3.54632237855889
1990-01-01	2.50752382955470
1990-02-01	2.95992963493734
1990-03-01	2.20543317876342
1990-04-01	2.34240934991573
1990-05-01	3.17697762088116
1990-06-01	2.75072373165233
1990-07-01	3.16181640108330
1990-08-01	3.01546703761056
1990-09-01	2.88778789613404
1990-10-01	3.62606382584494
1990-11-01	3.15824149256891
1990-12-01	2.89395767886852
1991-01-01	3.36064371023292
1991-02-01	3.06418947022183
1991-03-01	3.88661628520359
1991-04-01	4.56776122021982
1991-05-01	3.43374968175546
1991-06-01	3.45175591838532
1991-07-01	3.75350041379773
1991-08-01	4.42633250291271
1991-09-01	4.91375414898926
1991-10-01	4.27676312858827
1991-11-01	3.54860587618625
1991-12-01	3.53390218117811
1992-01-01	4.50652168054878
1992-02-01	3.56120494600090
1992-03-01	3.45625969627127
1992-04-01	4.18397444388975
1992-05-01	4.32841135091934
1992-06-01	4.01472872569035
1992-07-01	4.29010615456081
1992-08-01	2.31925397437682
1992-09-01	4.46285461348781
1992-10-01	4.88564648099561
1992-11-01	3.29389015693859
1992-12-01	3.01175382150817
1993-01-01	3.86836939748897
1993-02-01	4.63337791029860
1993-03-01	4.42820013494651
1993-04-01	3.66744327876901
1993-05-01	3.91551598227108
1993-06-01	5.33092635990501
1993-07-01	4.43136705239288
1993-08-01	5.25399896246457
1993-09-01	4.79922980996524
1993-10-01	5.55416936284178
1993-11-01	5.82531921855283
1993-12-01	5.41923541637497
1994-01-01	6.38946976812936
1994-02-01	7.01898951085324
1994-03-01	6.52395427981998
1994-04-01	5.81315737533910
1994-05-01	5.67119625620363
1994-06-01	5.17152964270214
1994-07-01	5.38147642931348
1994-08-01	5.12476648210013
1994-09-01	4.89850019548148
1994-10-01	5.18534104948762
1994-11-01	4.81923810388962
1994-12-01	5.13150404728381
1995-01-01	3.57573114840244
1995-02-01	5.41507387214390
1995-03-01	3.34054339335706
1995-04-01	3.26167503024010
1995-05-01	3.14052796765807
1995-06-01	3.79466658527379
1995-07-01	4.13087154569239
1995-08-01	3.95284650254229
1995-09-01	5.12173613797316
1995-10-01	5.04822997817024
1995-11-01	4.62522433575900
1995-12-01	3.74120375895670
1996-01-01	4.55089925848590
1996-02-01	5.56349015783816
1996-03-01	5.74305194398810
1996-04-01	5.18327288816227
1996-05-01	5.42411653479454
1996-06-01	5.19358879068449
1996-07-01	4.00015481715903
1996-08-01	4.23622418278743
1996-09-01	4.72544913698988
1996-10-01	3.69535086705312
1996-11-01	4.09085199587507
1996-12-01	4.21193349492579
1997-01-01	4.74180247290226
1997-02-01	4.91515628351871
1997-03-01	5.44762415976057
1997-04-01	4.47452422043423
1997-05-01	3.87696297579105
1997-06-01	4.29049184406270
1997-07-01	3.60646143166247
1997-08-01	4.30595558343799
1997-09-01	4.61896308167550
1997-10-01	4.54064505181489
1997-11-01	3.27815047410864
1997-12-01	5.01564379841941
1998-01-01	4.88090624711808
1998-02-01	5.21187394628297
1998-03-01	5.11561964900310
1998-04-01	4.32807203903717
1998-05-01	4.41578112466274
1998-06-01	4.87009564532392
1998-07-01	4.67869613133511
1998-08-01	4.11190320464754
1998-09-01	4.88668536658312
1998-10-01	3.62113778260516
1998-11-01	3.68484018144010
1998-12-01	3.82626653392077
1999-01-01	3.56170971039790
1999-02-01	4.33658367453147
1999-03-01	3.91651681455330
1999-04-01	2.59161077352996
1999-05-01	2.69054032478546
1999-06-01	3.77666523525648
1999-07-01	3.08844457655629
1999-08-01	4.05705651294414
1999-09-01	4.06109666278584
1999-10-01	2.94338137210254
1999-11-01	3.60564121270544
1999-12-01	3.40172228544086
2000-01-01	4.20085473763853
2000-02-01	4.12466771469824
2000-03-01	4.03071222959269
2000-04-01	3.25703253599821
2000-05-01	3.28068116128847
2000-06-01	3.53751863799931
2000-07-01	2.09416494243440
2000-08-01	2.12673256257182
2000-09-01	2.35782433340250
2000-10-01	2.35617873455692
2000-11-01	2.81655217048134
2000-12-01	3.84643243701843
2001-01-01	3.20710583633702
2001-02-01	2.65618533336082
2001-03-01	3.09379648286428
2001-04-01	2.64113681565509
2001-05-01	3.43084962007549
2001-06-01	2.67224807465658
2001-07-01	2.61137252799942
2001-08-01	3.19061653937716
2001-09-01	3.45582100695203
2001-10-01	2.88432102107233
2001-11-01	2.66038861900685
2001-12-01	3.09039303711236
2002-01-01	3.60940358187035
2002-02-01	3.41027022933247
2002-03-01	2.69700996040956
2002-04-01	2.96420332264487
2002-05-01	3.11765859667885
2002-06-01	2.56935880330935
2002-07-01	2.48936155321783
2002-08-01	2.09963366895154
2002-09-01	2.94542082588158
2002-10-01	2.91996477496230
2002-11-01	3.66690010266168
2002-12-01	2.91698251888864
2003-01-01	2.98740294297516
2003-02-01	3.17724827748937
2003-03-01	3.02391669439924
2003-04-01	2.76609668200317
2003-05-01	3.25389443358675
2003-06-01	2.90385360850207
2003-07-01	2.82747463598208
2003-08-01	3.25946454190141
2003-09-01	2.92472092367636
2003-10-01	3.57705484854247
2003-11-01	2.64583083516298
2003-12-01	2.87152893232627
2004-01-01	2.59810861953715
2004-02-01	3.34652529057506
2004-03-01	2.80887569733801
2004-04-01	3.73789433808765
2004-05-01	3.09397747301195
2004-06-01	2.82934075570673
2004-07-01	3.19057718852784
2004-08-01	3.31770337259151
2004-09-01	3.38971260747062
2004-10-01	2.71777198952717
2004-11-01	3.17428117457935
2004-12-01	2.24349783061064
2005-01-01	3.97282951642725
2005-02-01	3.85085248428894
2005-03-01	3.41612885112626
2005-04-01	3.07325020040222
2005-05-01	2.80581316133406
2005-06-01	2.76108237086194
2005-07-01	2.35629334233520
2005-08-01	2.19849019547241
2005-09-01	2.85674927572592
2005-10-01	2.52761968372269
2005-11-01	2.41700404681664
2005-12-01	2.52387099357260
2006-01-01	3.11129260541459
2006-02-01	3.19615365816142
2006-03-01	3.11699117439696
2006-04-01	2.37432297436984
2006-05-01	2.84420913500255
2006-06-01	2.32201552096052
2006-07-01	2.74303234092699
2006-08-01	2.81810973220791
2006-09-01	3.10523638458896
2006-10-01	2.71253403165568
2006-11-01	2.34785567242134
2006-12-01	2.59367712921964
2007-01-01	3.59391761893366
2007-02-01	3.32952526827548
2007-03-01	2.83318949141199
2007-04-01	3.06690198906354
2007-05-01	2.75011877138521
2007-06-01	2.12468493507814
2007-07-01	2.35974354668326
2007-08-01	2.27644583371114
2007-09-01	2.50794451692377
2007-10-01	2.66014677654593
2007-11-01	2.11803492464627
2007-12-01	1.95378555390839
2008-01-01	2.53868646058561
2008-02-01	2.00129835232035
2008-03-01	2.14678984777839
2008-04-01	1.92251069758090
2008-05-01	2.01272520484633
2008-06-01	1.89923216770387
2008-07-01	1.64734203547364
2008-08-01	2.03226072493229
2008-09-01	1.78941077879937
2008-10-01	1.87527139054539
2008-11-01	2.27473436889428
2008-12-01	1.97258150786700
2009-01-01	2.70787999581997
2009-02-01	3.47259206641184
2009-03-01	3.06964653136458
2009-04-01	2.79345309344773
2009-05-01	2.67158068408690
2009-06-01	3.00479708930295
2009-07-01	2.54864519989988
2009-08-01	2.49837480856087
2009-09-01	2.63430888460344
2009-10-01	3.08934231329844
2009-11-01	2.94115371730688
2009-12-01	3.02368203095751
2010-01-01	3.10493520625349
2010-02-01	2.92108514551230
2010-03-01	2.88110952091567
2010-04-01	2.80160890594648
2010-05-01	2.05579657223161
2010-06-01	2.02225200308585
2010-07-01	2.83889602746511
2010-08-01	2.64113733273715
2010-09-01	2.89692496910324
2010-10-01	2.23863487907166
2010-11-01	2.28372315764957
2010-12-01	2.86995665776388
2011-01-01	3.04020454372534
2011-02-01	2.73016208979934
2011-03-01	2.66142036295524
2011-04-01	3.05407258473155
2011-05-01	2.69827945586380
2011-06-01	2.81634529667255
2011-07-01	2.80800060156599
2011-08-01	3.32707860657427
2011-09-01	2.53878152129005
2011-10-01	3.33773792223052
2011-11-01	2.69242334813629
2011-12-01	2.94632210942550
2012-01-01	3.03646865253284
2012-02-01	3.64067797319828
2012-03-01	2.76436391731611
2012-04-01	3.53626287105452
2012-05-01	2.76677959215605
2012-06-01	2.95912815097720
2012-07-01	2.88417177162417
2012-08-01	3.20602484274514
2012-09-01	3.77511168436089
2012-10-01	2.67159206406350
2012-11-01	2.96514813397814
2012-12-01	3.13561830791977
2013-01-01	3.29350064665428
2013-02-01	3.30067903867886
2013-03-01	3.16561442455716
2013-04-01	3.04146914906287
2013-05-01	2.90129764487171
2013-06-01	3.04539639661772
2013-07-01	3.27655485183488
2013-08-01	3.59764315275924
2013-09-01	3.43346209153278
2013-10-01	2.54098912699723
2013-11-01	3.07376409066304
2013-12-01	3.50279002947942
2014-01-01	4.07298131839177
2014-02-01	5.50011610401439
2014-03-01	4.99635649975016
2014-04-01	4.44581077617859
2014-05-01	3.56899156129280
2014-06-01	3.48427566113415
2014-07-01	3.81697416710738
2014-08-01	2.93694573393271
2014-09-01	3.01935229314380
2014-10-01	3.65803159974942
2014-11-01	2.96478628028984
2014-12-01	3.23528483749775
2015-01-01	3.25720049274945
2015-02-01	3.92925153708982
2015-03-01	3.45917700530248
2015-04-01	3.14581470451634
2015-05-01	3.37219138749113
2015-06-01	3.61832109234570
2015-07-01	4.11319291538735
2015-08-01	3.49708644263680
2015-09-01	3.64477940943652
2015-10-01	3.53857255073750
2015-11-01	3.12301770836088
2015-12-01	3.86183865431855
2016-01-01	4.11938692231185
2016-02-01	3.98882764842145
2016-03-01	3.67428195423262
2016-04-01	3.28333707371331
2016-05-01	3.66736503016486
2016-06-01	3.79987666008844
2016-07-01	3.88986792579297
2016-08-01	3.78951909754088
2016-09-01	3.27152919766250
2016-10-01	3.38677917535767
2016-11-01	2.99284761178326
2016-12-01	3.34191778702184
2017-01-01	3.76570448451424
2017-02-01	4.37831111713750
2017-03-01	3.80854295632165
2017-04-01	3.66873484814125
2017-05-01	3.33832144205551
2017-06-01	3.19915466477405
2017-07-01	4.16386834202554
2017-08-01	3.93687281120991
2017-09-01	3.25537683387743
2017-10-01	3.56311809666796
2017-11-01	3.67859438917660
2017-12-01	3.92826781428105
2018-01-01	4.17061066593260
2018-02-01	4.21962221425984
2018-03-01	4.19585727036742
2018-04-01	3.46652706296518
2018-05-01	4.17124092415286
2018-06-01	4.16237598792905
2018-07-01	4.25054730209052
2018-08-01	4.10087500353411
2018-09-01	3.04954332907028