Month	Percent
1978-02-01	6.44574852846146
1978-03-01	5.94373133191554
1978-04-01	5.65552456764347
1978-05-01	5.79986828864465
1978-06-01	5.54233155122247
1978-07-01	4.77016120688651
1978-08-01	5.04972847687787
1978-09-01	5.01926860755829
1978-10-01	4.61791039613802
1978-11-01	4.84481671663325
1978-12-01	4.14470735302559
1979-01-01	4.95952158737338
1979-02-01	6.00705336212697
1979-03-01	5.76490726502046
1979-04-01	5.77821733429450
1979-05-01	4.94354879668639
1979-06-01	4.93618230473266
1979-07-01	5.23737875219537
1979-08-01	5.06042862913739
1979-09-01	5.46835199655409
1979-10-01	5.49459558627085
1979-11-01	4.97651578346233
1979-12-01	4.84528737499149
1980-01-01	4.56469838796906
1980-02-01	5.89436893183240
1980-03-01	5.52385719308613
1980-04-01	5.41417621298113
1980-05-01	4.95513382327235
1980-06-01	5.28671179844893
1980-07-01	4.76087058179403
1980-08-01	4.69123110826218
1980-09-01	5.17416621320056
1980-10-01	4.93089819909973
1980-11-01	4.62547393007181
1980-12-01	4.79204803221795
1981-01-01	4.68133329377696
1981-02-01	5.51670041764343
1981-03-01	5.89681823503532
1981-04-01	5.14718416588793
1981-05-01	5.11718456544610
1981-06-01	4.73826156927555
1981-07-01	4.50202122839975
1981-08-01	4.91718428563425
1981-09-01	4.82187431868849
1981-10-01	4.89528415818998
1981-11-01	4.94688254815067
1981-12-01	4.85933863405371
1982-01-01	4.54222141278340
1982-02-01	6.34400689666878
1982-03-01	6.10074750097648
1982-04-01	5.82590262394559
1982-05-01	5.84735228845951
1982-06-01	5.88379765002580
1982-07-01	5.48351432674284
1982-08-01	5.38104744016620
1982-09-01	6.10830701807210
1982-10-01	6.54558522102330
1982-11-01	6.34288615912341
1982-12-01	6.60637640745647
1983-01-01	6.20103346148158
1983-02-01	8.32624857508791
1983-03-01	8.48159702044744
1983-04-01	7.88457229775423
1983-05-01	8.27058252133381
1983-06-01	8.08367225510879
1983-07-01	7.63293921998872
1983-08-01	7.45343457141212
1983-09-01	8.24159488554651
1983-10-01	7.40484083588381
1983-11-01	6.81708424355136
1983-12-01	6.76185074539874
1984-01-01	6.71466257633263
1984-02-01	8.12295740980324
1984-03-01	8.31159291407790
1984-04-01	8.10414771006033
1984-05-01	7.02195041490278
1984-06-01	7.11150161102629
1984-07-01	6.45632748517928
1984-08-01	5.98610229636021
1984-09-01	6.59235607616048
1984-10-01	6.32360106591411
1984-11-01	5.88797682778175
1984-12-01	5.85165198628533
1985-01-01	6.13852352914091
1985-02-01	7.17870630165584
1985-03-01	7.42832624975710
1985-04-01	6.97077839269597
1985-05-01	6.51282877549762
1985-06-01	6.49846675595852
1985-07-01	5.96964064125256
1985-08-01	6.00498804826610
1985-09-01	6.37295963489768
1985-10-01	6.11705198874216
1985-11-01	6.00607365745783
1985-12-01	5.69981626829026
1986-01-01	5.78845776592522
1986-02-01	7.61384985238095
1986-03-01	7.58910737848956
1986-04-01	6.59619283469669
1986-05-01	6.35407398884004
1986-06-01	6.10725568280249
1986-07-01	6.27653294110289
1986-08-01	6.32647620833535
1986-09-01	6.64384737004081
1986-10-01	6.08264927083062
1986-11-01	5.82386939823877
1986-12-01	5.71260114598251
1987-01-01	5.97096926635766
1987-02-01	7.24891074678053
1987-03-01	7.77008335094468
1987-04-01	7.32140840172668
1987-05-01	6.78242881397568
1987-06-01	6.04661123072788
1987-07-01	6.14765511306172
1987-08-01	6.34464801672784
1987-09-01	5.96342871722923
1987-10-01	5.86335597584945
1987-11-01	5.71304610326118
1987-12-01	5.81492681084685
1988-01-01	6.06131625329817
1988-02-01	6.95125177385550
1988-03-01	6.90426070041129
1988-04-01	7.14795486558062
1988-05-01	6.69423330969195
1988-06-01	6.06758160413157
1988-07-01	5.41005045070324
1988-08-01	5.28976768486672
1988-09-01	5.89363457984934
1988-10-01	5.26028216497327
1988-11-01	5.26280378311514
1988-12-01	5.18599189820573
1989-01-01	5.79555153373257
1989-02-01	6.17874150681848
1989-03-01	5.74835192596590
1989-04-01	5.70050952538233
1989-05-01	5.47807544472300
1989-06-01	4.96080938185313
1989-07-01	4.84133176699559
1989-08-01	4.68281579262660
1989-09-01	5.00145752385103
1989-10-01	4.78320655865279
1989-11-01	4.79993605323608
1989-12-01	4.49853344775089
1990-01-01	4.83675410268260
1990-02-01	6.09225735549090
1990-03-01	5.32997657262702
1990-04-01	5.01571789605923
1990-05-01	5.18358292338160
1990-06-01	5.61424664119270
1990-07-01	5.24303163314475
1990-08-01	5.46448997776697
1990-09-01	5.72490382194317
1990-10-01	5.38852363953776
1990-11-01	5.29560092581215
1990-12-01	5.45356251311084
1991-01-01	6.10853688359818
1991-02-01	7.45842631057205
1991-03-01	7.38286197009455
1991-04-01	7.69555274787121
1991-05-01	6.97363523340413
1991-06-01	6.61219769333621
1991-07-01	6.94716427029989
1991-08-01	6.44088643714358
1991-09-01	7.34016351727225
1991-10-01	6.78388545667366
1991-11-01	6.95208080141814
1991-12-01	7.28332699490264
1992-01-01	7.78816166985465
1992-02-01	8.57397492489170
1992-03-01	8.04956316339811
1992-04-01	7.93016006948666
1992-05-01	7.42483809845468
1992-06-01	7.55167376733461
1992-07-01	7.56248993740322
1992-08-01	7.02212944457957
1992-09-01	7.71628461489119
1992-10-01	7.49318054691741
1992-11-01	7.31783314917302
1992-12-01	7.88360178028484
1993-01-01	7.91025935174030
1993-02-01	9.05592048155257
1993-03-01	8.54364249228044
1993-04-01	7.81187922644745
1993-05-01	7.62373384622637
1993-06-01	7.59557775005114
1993-07-01	7.76338477289415
1993-08-01	7.90221897674389
1993-09-01	8.01751873813950
1993-10-01	7.82041813431325
1993-11-01	7.99086005389921
1993-12-01	7.51201164613074
1994-01-01	7.47320164711016
1994-02-01	8.64385022615899
1994-03-01	7.71480961532574
1994-04-01	7.62967865132781
1994-05-01	7.27071320226768
1994-06-01	7.21949558034854
1994-07-01	7.19341533486024
1994-08-01	6.89533162628011
1994-09-01	7.20966077390469
1994-10-01	6.86193261430184
1994-11-01	7.00702597940014
1994-12-01	6.83372426800743
1995-01-01	6.82835322290906
1995-02-01	7.66508081334652
1995-03-01	7.30599822691594
1995-04-01	6.21722889333452
1995-05-01	5.87153457769342
1995-06-01	5.92321718343811
1995-07-01	5.81459400934037
1995-08-01	5.84648640302544
1995-09-01	5.94780824667591
1995-10-01	5.81262013757780
1995-11-01	6.00559738922970
1995-12-01	5.35443082779367
1996-01-01	5.90455362475814
1996-02-01	6.90218004469437
1996-03-01	6.37302768966586
1996-04-01	6.58462179363639
1996-05-01	6.40501414369697
1996-06-01	6.27935505038083
1996-07-01	6.31374271039147
1996-08-01	6.43380901444731
1996-09-01	6.75742284866839
1996-10-01	6.68365108712016
1996-11-01	6.36657929632645
1996-12-01	6.31256805255933
1997-01-01	7.00558966583077
1997-02-01	7.75911131821846
1997-03-01	6.92645819406766
1997-04-01	6.82934418569190
1997-05-01	6.70292973597510
1997-06-01	6.23176971704414
1997-07-01	6.11682009476660
1997-08-01	6.42659045927884
1997-09-01	6.13038617929740
1997-10-01	5.87261188335157
1997-11-01	5.71947613695038
1997-12-01	5.51829934966903
1998-01-01	5.90787647602923
1998-02-01	6.79450838851077
1998-03-01	6.32233935218216
1998-04-01	5.91813221539012
1998-05-01	5.89712552471775
1998-06-01	5.70575191662240
1998-07-01	5.60680271853389
1998-08-01	5.54138829855569
1998-09-01	5.91576513930469
1998-10-01	5.35568951035018
1998-11-01	5.54712742877441
1998-12-01	5.06439003954381
1999-01-01	5.51448092050430
1999-02-01	6.23747872815779
1999-03-01	5.79488761952884
1999-04-01	5.55090298702312
1999-05-01	5.40562121661970
1999-06-01	5.09630663198229
1999-07-01	4.91039889895387
1999-08-01	5.13382309691526
1999-09-01	5.48227966654471
1999-10-01	5.04319447242206
1999-11-01	4.64923154273787
1999-12-01	4.89363426502283
2000-01-01	5.34142968830636
2000-02-01	6.29360154037915
2000-03-01	5.85807635015137
2000-04-01	5.43072825445862
2000-05-01	5.32402072163170
2000-06-01	4.75638625365438
2000-07-01	4.29095946389505
2000-08-01	4.22023040089451
2000-09-01	4.47443185693809
2000-10-01	4.30869430146390
2000-11-01	4.59436568559330
2000-12-01	4.12484085281931
2001-01-01	4.54432209184290
2001-02-01	5.60009924422897
2001-03-01	5.06971482039589
2001-04-01	5.48213435442898
2001-05-01	5.29175380501584
2001-06-01	5.30436418487219
2001-07-01	4.63901927043514
2001-08-01	5.13470257378267
2001-09-01	5.32497004171011
2001-10-01	5.49331609017617
2001-11-01	5.09813088233717
2001-12-01	5.10727380093476
2002-01-01	5.72763698191315
2002-02-01	5.68583091781213
2002-03-01	5.10099844882134
2002-04-01	4.99869582362207
2002-05-01	4.98144073392453
2002-06-01	5.17469680547888
2002-07-01	4.70025644707309
2002-08-01	4.79581972631287
2002-09-01	5.03588038971812
2002-10-01	4.54648399048340
2002-11-01	4.63244205891894
2002-12-01	4.72737913561000
2003-01-01	5.15500733476054
2003-02-01	5.52885787990568
2003-03-01	5.47180087253018
2003-04-01	4.89249405048629
2003-05-01	5.00265256465191
2003-06-01	4.91345100885716
2003-07-01	4.74200890450896
2003-08-01	4.64067480496747
2003-09-01	4.89426704448323
2003-10-01	4.33437773515523
2003-11-01	4.43970410248653
2003-12-01	4.45550542971395
2004-01-01	4.68049914903809
2004-02-01	5.61445162140863
2004-03-01	4.84398349466454
2004-04-01	4.58045748302803
2004-05-01	4.38258340841794
2004-06-01	4.50039146853938
2004-07-01	4.25209893925964
2004-08-01	4.23909232595494
2004-09-01	4.14846240115659
2004-10-01	3.70021040710811
2004-11-01	3.76510113325963
2004-12-01	3.67706790142568
2005-01-01	4.07202170364748
2005-02-01	4.96790428726763
2005-03-01	4.58213628569280
2005-04-01	4.17623116245178
2005-05-01	4.48310563697603
2005-06-01	4.18326138295596
2005-07-01	3.93743674936282
2005-08-01	3.80687147205514
2005-09-01	3.90070921245720
2005-10-01	3.78870698006612
2005-11-01	3.72660514984252
2005-12-01	3.76946144604589
2006-01-01	4.55415576183979
2006-02-01	4.82448836287021
2006-03-01	4.41785485972327
2006-04-01	4.40045615771788
2006-05-01	4.09320642809614
2006-06-01	4.16300804436744
2006-07-01	3.56938557572072
2006-08-01	3.61469876310466
2006-09-01	3.70799655811379
2006-10-01	3.49333565084533
2006-11-01	3.34862240546248
2006-12-01	3.71596365071721
2007-01-01	3.99028511527501
2007-02-01	4.90968798984677
2007-03-01	4.40492922793166
2007-04-01	4.10368763315159
2007-05-01	3.92549669271062
2007-06-01	4.11729007317977
2007-07-01	3.70945838443514
2007-08-01	3.66883211031298
2007-09-01	3.71536162355437
2007-10-01	3.55355097092266
2007-11-01	3.47671600729610
2007-12-01	3.31743181667320
2008-01-01	4.05185331731268
2008-02-01	4.52823794461145
2008-03-01	3.86882202690212
2008-04-01	3.82344068140236
2008-05-01	3.84668176118758
2008-06-01	3.91997961087313
2008-07-01	3.76291904178526
2008-08-01	3.80587610399162
2008-09-01	4.10376121734879
2008-10-01	3.82724065619988
2008-11-01	3.89607638461928
2008-12-01	3.50937232411149
2009-01-01	4.13835668645380
2009-02-01	5.35483632613860
2009-03-01	5.04197085122667
2009-04-01	4.46615645432976
2009-05-01	4.56940336543498
2009-06-01	4.50016262320585
2009-07-01	4.26423389026940
2009-08-01	4.67650765463172
2009-09-01	4.82158044908876
2009-10-01	4.45869713476976
2009-11-01	4.28687563870472
2009-12-01	4.18405062886906
2010-01-01	4.50736992442948
2010-02-01	4.94698846561344
2010-03-01	4.59405748809533
2010-04-01	4.76496437105719
2010-05-01	4.48844921770201
2010-06-01	4.32846048603190
2010-07-01	4.15640492676648
2010-08-01	4.12805015532239
2010-09-01	4.26553728045833
2010-10-01	4.26806781786369
2010-11-01	4.34548271481578
2010-12-01	3.97602625297207
2011-01-01	4.41416150337043
2011-02-01	4.74965875103345
2011-03-01	4.68778315554989
2011-04-01	4.18970661194924
2011-05-01	4.47704493402201
2011-06-01	4.32406525173172
2011-07-01	4.20964791156700
2011-08-01	4.42424215694947
2011-09-01	4.61659774518490
2011-10-01	4.12799534588546
2011-11-01	4.05990126666648
2011-12-01	4.15349902518006
2012-01-01	4.25885468186809
2012-02-01	4.86109565840330
2012-03-01	4.68688997591021
2012-04-01	4.37258006369217
2012-05-01	4.55581329407678
2012-06-01	4.48351729306194
2012-07-01	3.95345344365575
2012-08-01	4.02832515428378
2012-09-01	4.23443930329873
2012-10-01	4.35063726906600
2012-11-01	4.26181152883844
2012-12-01	4.23650297848542
2013-01-01	4.53504772149580
2013-02-01	4.99804226404998
2013-03-01	5.15188482253018
2013-04-01	5.07523870879024
2013-05-01	5.14627130920487
2013-06-01	4.87570879676838
2013-07-01	4.45922770906534
2013-08-01	4.57502789291410
2013-09-01	4.58706646437492
2013-10-01	4.31665251387229
2013-11-01	4.32610822456501
2013-12-01	4.33084537947357
2014-01-01	5.19889160123087
2014-02-01	5.75647390739774
2014-03-01	5.36673953649907
2014-04-01	4.67875722507441
2014-05-01	5.06153563082219
2014-06-01	5.22857377568304
2014-07-01	5.15700606653652
2014-08-01	5.26853920578403
2014-09-01	5.27661106371913
2014-10-01	5.03271087593576
2014-11-01	4.80018104743340
2014-12-01	4.78409797638616
2015-01-01	5.47502901159588
2015-02-01	5.65437456469154
2015-03-01	5.61886949584644
2015-04-01	5.46182535063186
2015-05-01	5.11712777651462
2015-06-01	5.05817293813526
2015-07-01	5.46428664838113
2015-08-01	5.11597202142721
2015-09-01	5.15659809033317
2015-10-01	4.87810352906393
2015-11-01	5.02525722066678
2015-12-01	4.73113464507279
2016-01-01	5.66174447758194
2016-02-01	5.77360978487339
2016-03-01	5.41388070543118
2016-04-01	5.16176478437573
2016-05-01	5.08820173425718
2016-06-01	4.97625270151665
2016-07-01	4.62547518402837
2016-08-01	4.65690088354306
2016-09-01	4.63168205246757
2016-10-01	4.58680800268678
2016-11-01	4.49379106639031
2016-12-01	4.56037196114710
2017-01-01	5.38147368501398
2017-02-01	5.70511031517521
2017-03-01	5.57128045075049
2017-04-01	5.20250322163417
2017-05-01	4.79578775792395
2017-06-01	4.83886692938229
2017-07-01	4.43717967730545
2017-08-01	4.47188803691111
2017-09-01	4.46431616659987
2017-10-01	4.36302468458349
2017-11-01	4.18485417195870
2017-12-01	4.23976951028890
2018-01-01	4.92197575550314
2018-02-01	4.92834057321152
2018-03-01	5.00889406078872
2018-04-01	4.89946096654495
2018-05-01	4.62841257616183
2018-06-01	4.48077126663313
2018-07-01	4.41973154399856
2018-08-01	4.53719360988001
2018-09-01	4.18330674163916