Month	Percent
1978-02-01	4.50287522816324
1978-03-01	4.14147569494677
1978-04-01	4.03293125834143
1978-05-01	4.08155675558024
1978-06-01	4.07547500738707
1978-07-01	3.86669325989074
1978-08-01	3.91310177640092
1978-09-01	3.88001875610907
1978-10-01	3.66945698048330
1978-11-01	3.78308780657364
1978-12-01	3.53941699468909
1979-01-01	3.84482310541649
1979-02-01	4.27535921550276
1979-03-01	4.00199566560173
1979-04-01	3.98109781985816
1979-05-01	3.72333082675801
1979-06-01	3.71877075770634
1979-07-01	3.69073586667479
1979-08-01	3.52053531298153
1979-09-01	3.67913951788763
1979-10-01	3.70346838519248
1979-11-01	3.43887180568574
1979-12-01	3.45526179171571
1980-01-01	3.69416674831511
1980-02-01	4.06974147667821
1980-03-01	3.83017762954240
1980-04-01	3.71041495292497
1980-05-01	3.80089161418121
1980-06-01	3.80636898860141
1980-07-01	3.60192726484410
1980-08-01	3.58142186499554
1980-09-01	3.74260816374201
1980-10-01	3.47410836777909
1980-11-01	3.39603009183871
1980-12-01	3.41775070656919
1981-01-01	3.53318863327941
1981-02-01	3.78560798751739
1981-03-01	3.91453311697213
1981-04-01	3.58815048891043
1981-05-01	3.68220954007845
1981-06-01	3.49423946986168
1981-07-01	3.57808990815962
1981-08-01	3.73372661557920
1981-09-01	3.76500948726318
1981-10-01	3.66355903463710
1981-11-01	3.73060387215333
1981-12-01	3.61249478011295
1982-01-01	3.73665924114439
1982-02-01	4.43254530004796
1982-03-01	4.36700640696528
1982-04-01	4.19356747876649
1982-05-01	4.21984726445827
1982-06-01	4.32187497911350
1982-07-01	4.42690299726810
1982-08-01	4.54501234631992
1982-09-01	5.05498620343501
1982-10-01	5.38864779744379
1982-11-01	5.65981760604120
1982-12-01	6.01350085415398
1983-01-01	6.28909915939346
1983-02-01	7.13855754684344
1983-03-01	7.28419948606190
1983-04-01	7.26818098238221
1983-05-01	7.33814714548744
1983-06-01	7.23819656263540
1983-07-01	7.09848356306839
1983-08-01	7.09620634413601
1983-09-01	7.32991466808830
1983-10-01	6.81331332637708
1983-11-01	6.31376063970546
1983-12-01	6.20548524398545
1984-01-01	6.79127319954044
1984-02-01	7.07089335136754
1984-03-01	6.87505052499940
1984-04-01	6.67981727362269
1984-05-01	6.33811955774581
1984-06-01	6.30609425241021
1984-07-01	5.92832650672803
1984-08-01	6.00689963909635
1984-09-01	6.22699222079905
1984-10-01	5.77702130254031
1984-11-01	5.50721503651022
1984-12-01	5.59157867295243
1985-01-01	6.04636790333369
1985-02-01	6.28561604042960
1985-03-01	6.44590890457706
1985-04-01	6.23477133827689
1985-05-01	6.16557060112715
1985-06-01	6.24053018762142
1985-07-01	5.70254643424942
1985-08-01	5.76360236370098
1985-09-01	5.80308707445092
1985-10-01	5.39361587186407
1985-11-01	5.37513139315893
1985-12-01	5.17712568454082
1986-01-01	5.41190536303547
1986-02-01	6.16848922869636
1986-03-01	6.05046710059055
1986-04-01	5.67573612677666
1986-05-01	5.74443938369591
1986-06-01	5.46286213937495
1986-07-01	5.65554061197878
1986-08-01	5.81369202412324
1986-09-01	5.96289465947622
1986-10-01	5.57549022892105
1986-11-01	5.65445086498984
1986-12-01	5.60831855968179
1987-01-01	6.02387998344801
1987-02-01	6.32112282887204
1987-03-01	6.55963292093551
1987-04-01	6.24032904619842
1987-05-01	6.13470504335611
1987-06-01	5.81603139548175
1987-07-01	5.76707922658882
1987-08-01	5.69821609800840
1987-09-01	5.61889413885807
1987-10-01	5.58420858722994
1987-11-01	5.42618014893602
1987-12-01	5.27305139382781
1988-01-01	5.50476014204769
1988-02-01	5.82962119101622
1988-03-01	5.80363693335727
1988-04-01	5.89562375808407
1988-05-01	5.55575912079619
1988-06-01	5.31305455305795
1988-07-01	4.94598908863641
1988-08-01	4.96284212904996
1988-09-01	5.20315343979456
1988-10-01	4.80521077604568
1988-11-01	4.58845030009548
1988-12-01	4.73009840365478
1989-01-01	5.21694213951922
1989-02-01	5.45016277096618
1989-03-01	5.01077924383093
1989-04-01	4.86425225267139
1989-05-01	4.79764817403146
1989-06-01	4.47480845797474
1989-07-01	4.47052359530970
1989-08-01	4.29534362118833
1989-09-01	4.51870590888638
1989-10-01	4.10795757692527
1989-11-01	4.13516455773048
1989-12-01	4.11359412192836
1990-01-01	4.49000052145276
1990-02-01	5.17179042761978
1990-03-01	4.70756012974796
1990-04-01	4.58134622093492
1990-05-01	4.78269582053765
1990-06-01	4.91341109798500
1990-07-01	5.00097280598477
1990-08-01	5.11343042376699
1990-09-01	5.54103082392829
1990-10-01	5.40414231777724
1990-11-01	5.56062633248752
1990-12-01	5.54022244837972
1991-01-01	6.46479864800552
1991-02-01	7.05919206433103
1991-03-01	7.20723731604524
1991-04-01	7.51865525655834
1991-05-01	7.13744026692948
1991-06-01	6.94238210157080
1991-07-01	7.36880404419176
1991-08-01	7.34321072334332
1991-09-01	7.80299514898580
1991-10-01	7.39209145749282
1991-11-01	7.51647048846378
1991-12-01	7.68930247437254
1992-01-01	8.27833955344158
1992-02-01	8.65883370876562
1992-03-01	8.26946866281036
1992-04-01	8.16298326051821
1992-05-01	8.16844012767105
1992-06-01	8.17939176156522
1992-07-01	8.37488590813701
1992-08-01	8.02409033526704
1992-09-01	8.31715607599917
1992-10-01	8.19300211730689
1992-11-01	8.35920236448301
1992-12-01	8.59735246910708
1993-01-01	9.06139322243598
1993-02-01	9.57587997373108
1993-03-01	8.95351368964182
1993-04-01	8.78754446193986
1993-05-01	8.70474148396330
1993-06-01	8.68184590655257
1993-07-01	8.54381992749104
1993-08-01	8.67669455274683
1993-09-01	8.63994536494687
1993-10-01	8.49636883393206
1993-11-01	8.59971211520011
1993-12-01	8.31551848589790
1994-01-01	8.80040978983747
1994-02-01	9.00520517641805
1994-03-01	8.40150477290911
1994-04-01	7.98824331930394
1994-05-01	7.66159374267205
1994-06-01	7.67078635468100
1994-07-01	7.39952481464915
1994-08-01	7.36002929204828
1994-09-01	7.50035330606817
1994-10-01	7.08182670381515
1994-11-01	7.13479246814329
1994-12-01	6.90818691330608
1995-01-01	7.36782116151440
1995-02-01	7.63563622004872
1995-03-01	7.14691516803865
1995-04-01	6.60991775243382
1995-05-01	6.54280054125486
1995-06-01	6.38607178694811
1995-07-01	6.32695943975677
1995-08-01	6.43472299768857
1995-09-01	6.58057737877417
1995-10-01	6.45521581865010
1995-11-01	6.29337260168155
1995-12-01	5.98029479537279
1996-01-01	6.68183302831774
1996-02-01	7.07196345943560
1996-03-01	6.75555682342329
1996-04-01	6.75901269854479
1996-05-01	6.53702669465914
1996-06-01	6.42758769511332
1996-07-01	6.36396893692785
1996-08-01	6.78765834253310
1996-09-01	6.85688565293556
1996-10-01	6.54443057441450
1996-11-01	6.39496905199153
1996-12-01	6.31030131325908
1997-01-01	7.01144102056103
1997-02-01	7.37406185573832
1997-03-01	6.90407564293724
1997-04-01	6.74025850306057
1997-05-01	6.68457893315900
1997-06-01	6.33175724166747
1997-07-01	6.33933403995389
1997-08-01	6.50158847366953
1997-09-01	6.31115064872244
1997-10-01	5.99757801933882
1997-11-01	5.93000556998840
1997-12-01	5.82697560326778
1998-01-01	6.31381367207304
1998-02-01	6.71543948242940
1998-03-01	6.40352341699589
1998-04-01	5.94068725493260
1998-05-01	6.13293408768793
1998-06-01	6.03554571981780
1998-07-01	5.97018029003892
1998-08-01	6.03143845543662
1998-09-01	6.08754066625149
1998-10-01	5.59253775422695
1998-11-01	5.79851679354288
1998-12-01	5.34640312397354
1999-01-01	5.83804865374186
1999-02-01	6.19773757953340
1999-03-01	5.64389983350724
1999-04-01	5.49332291915843
1999-05-01	5.51465563173400
1999-06-01	5.14375017501435
1999-07-01	4.98043103819742
1999-08-01	5.27054872537073
1999-09-01	5.59037313668554
1999-10-01	5.16156626887442
1999-11-01	4.79002362321162
1999-12-01	4.95201625463827
2000-01-01	5.52492212148326
2000-02-01	5.72334805091716
2000-03-01	5.44612555752216
2000-04-01	5.07708720093616
2000-05-01	5.08637815685693
2000-06-01	4.79503469854779
2000-07-01	4.42846145510938
2000-08-01	4.51884056023317
2000-09-01	4.76097620041458
2000-10-01	4.51417049919063
2000-11-01	4.62827146383586
2000-12-01	4.48646647656367
2001-01-01	4.92219599794198
2001-02-01	5.46299965517473
2001-03-01	5.05375675258436
2001-04-01	5.29183844344261
2001-05-01	5.19672497102047
2001-06-01	5.20807247166026
2001-07-01	4.83666224209560
2001-08-01	5.23667876326418
2001-09-01	5.33190199605694
2001-10-01	5.24048209131697
2001-11-01	5.06187263843744
2001-12-01	4.92600972804751
2002-01-01	5.66355918754054
2002-02-01	5.54155336812527
2002-03-01	5.13201521626452
2002-04-01	4.98777307292731
2002-05-01	4.94495142386695
2002-06-01	4.91186330264537
2002-07-01	4.47542095371271
2002-08-01	4.62130909581486
2002-09-01	4.82624101497840
2002-10-01	4.39787337600235
2002-11-01	4.45747879820862
2002-12-01	4.45879360002723
2003-01-01	4.96555915256063
2003-02-01	5.08806184561693
2003-03-01	4.81995872566064
2003-04-01	4.62695010482396
2003-05-01	4.67445496968921
2003-06-01	4.64978626281392
2003-07-01	4.39015132276651
2003-08-01	4.31392653350019
2003-09-01	4.43529091276416
2003-10-01	4.20719923200744
2003-11-01	4.07408874651360
2003-12-01	3.95890508096170
2004-01-01	4.31487640176836
2004-02-01	4.80833184057432
2004-03-01	4.14409818042706
2004-04-01	4.22741115839260
2004-05-01	4.04764353534122
2004-06-01	4.07987821194920
2004-07-01	3.91566088518191
2004-08-01	3.91232454860853
2004-09-01	4.01570393166973
2004-10-01	3.51641834771311
2004-11-01	3.58170619115961
2004-12-01	3.37956641889771
2005-01-01	3.93772507024434
2005-02-01	4.25980093981577
2005-03-01	4.00516996779730
2005-04-01	3.82012237082416
2005-05-01	3.88086326342452
2005-06-01	3.69391209968026
2005-07-01	3.40260352217798
2005-08-01	3.57579897296884
2005-09-01	3.68575308704075
2005-10-01	3.48414918828943
2005-11-01	3.50244333454486
2005-12-01	3.49903241355055
2006-01-01	4.17249873953379
2006-02-01	4.25077784620681
2006-03-01	3.76751087084459
2006-04-01	3.71165156404354
2006-05-01	3.64421214865679
2006-06-01	3.64224833348795
2006-07-01	3.28416836188176
2006-08-01	3.41343765908192
2006-09-01	3.42579137822507
2006-10-01	3.23611830633836
2006-11-01	3.11704350719867
2006-12-01	3.13729317926047
2007-01-01	3.63102277798417
2007-02-01	3.91870962842310
2007-03-01	3.52108588943665
2007-04-01	3.37564255095659
2007-05-01	3.21822725739011
2007-06-01	3.26255245630746
2007-07-01	2.96949582444387
2007-08-01	2.95234454429992
2007-09-01	3.08632674514652
2007-10-01	2.96170405554358
2007-11-01	2.96366765439195
2007-12-01	2.88706621352943
2008-01-01	3.23870465213399
2008-02-01	3.39229378369092
2008-03-01	3.17697573131825
2008-04-01	3.23846748880123
2008-05-01	3.19521707352844
2008-06-01	3.12881323776568
2008-07-01	3.00502300745749
2008-08-01	3.06949578455999
2008-09-01	3.28200607613530
2008-10-01	3.15132151481236
2008-11-01	3.15633746849829
2008-12-01	3.13289577328346
2009-01-01	3.95343571739274
2009-02-01	4.50943361385175
2009-03-01	4.50448614498736
2009-04-01	4.18119669516040
2009-05-01	4.44660403929223
2009-06-01	4.46406711284770
2009-07-01	4.13316930549089
2009-08-01	4.25464585940630
2009-09-01	4.31709033082676
2009-10-01	4.21526665318627
2009-11-01	3.99978111095483
2009-12-01	3.91977864541800
2010-01-01	4.15453297888398
2010-02-01	4.39205664231804
2010-03-01	4.20055860805220
2010-04-01	4.10652364016636
2010-05-01	3.92847220276393
2010-06-01	3.71097489866931
2010-07-01	3.71203135129815
2010-08-01	3.51504467464145
2010-09-01	3.74398897043002
2010-10-01	3.69525905153909
2010-11-01	3.52820181138166
2010-12-01	3.26651859859962
2011-01-01	3.72715149997529
2011-02-01	3.88992075927845
2011-03-01	3.74634874966622
2011-04-01	3.63047460876043
2011-05-01	3.74315380506126
2011-06-01	3.57651596740287
2011-07-01	3.63802505560520
2011-08-01	3.89768885045074
2011-09-01	3.94003198413276
2011-10-01	3.82553057997329
2011-11-01	3.71048125677184
2011-12-01	3.51577001007571
2012-01-01	3.89680957221901
2012-02-01	4.23718840542392
2012-03-01	3.97116775663449
2012-04-01	3.77871672737599
2012-05-01	3.76609357460925
2012-06-01	3.76410604515390
2012-07-01	3.62196647886194
2012-08-01	3.75635969340769
2012-09-01	4.14994634101205
2012-10-01	3.90018293664069
2012-11-01	3.73691706341260
2012-12-01	3.72509261021056
2013-01-01	4.21547761197214
2013-02-01	4.47037047856134
2013-03-01	4.46229796770776
2013-04-01	4.34792183147253
2013-05-01	4.39289100970324
2013-06-01	4.38957270575154
2013-07-01	4.17331504027542
2013-08-01	4.31710733756866
2013-09-01	4.26566068580071
2013-10-01	4.23571318472407
2013-11-01	4.25751444121930
2013-12-01	4.22491028985315
2014-01-01	4.88522816273502
2014-02-01	5.12753545421890
2014-03-01	4.71748813523199
2014-04-01	4.37972473612690
2014-05-01	4.42493450372219
2014-06-01	4.51061398424341
2014-07-01	4.62526892307171
2014-08-01	4.60372855547709
2014-09-01	4.65133322712077
2014-10-01	4.61387489137735
2014-11-01	4.40840570246144
2014-12-01	4.32552110139909
2015-01-01	4.96984764509131
2015-02-01	5.02538063903900
2015-03-01	4.78155607985440
2015-04-01	4.65664899307308
2015-05-01	4.42510744804672
2015-06-01	4.53028871281271
2015-07-01	4.75074128316362
2015-08-01	4.77590329839869
2015-09-01	4.74809315318250
2015-10-01	4.43491685799549
2015-11-01	4.30566912489837
2015-12-01	4.12001701218195
2016-01-01	4.95434222401734
2016-02-01	4.83392296060061
2016-03-01	4.61727445475947
2016-04-01	4.37583727852743
2016-05-01	4.35908403374697
2016-06-01	4.18596659560265
2016-07-01	4.15933845432388
2016-08-01	4.24500817165626
2016-09-01	4.17007303433595
2016-10-01	4.05020148780558
2016-11-01	3.97650236258487
2016-12-01	4.03371460929685
2017-01-01	4.61797822325064
2017-02-01	4.82751473284750
2017-03-01	4.61703003436414
2017-04-01	4.28420200117814
2017-05-01	4.14534119262820
2017-06-01	4.10256531605722
2017-07-01	4.15534392688787
2017-08-01	4.17245452265989
2017-09-01	3.98205613439320
2017-10-01	3.91420395784408
2017-11-01	3.81348017636810
2017-12-01	3.97039776987439
2018-01-01	4.42976554291283
2018-02-01	4.40366807225428
2018-03-01	4.36759417231962
2018-04-01	4.20831567086074
2018-05-01	4.16480902552667
2018-06-01	4.10485721438367
2018-07-01	4.14007575845838
2018-08-01	4.05493858051242
2018-09-01	3.66197735452169