Month	Percent
1978-02-01	11.9222704917146
1978-03-01	12.6160411569142
1978-04-01	12.8962506113868
1978-05-01	13.0971200342444
1978-06-01	13.1257994888581
1978-07-01	13.6267938929326
1978-08-01	13.8588223754661
1978-09-01	13.7896553114001
1978-10-01	13.8236107666363
1978-11-01	14.1617489508721
1978-12-01	12.0473760197278
1979-01-01	12.9866410526136
1979-02-01	12.6956375911435
1979-03-01	12.9816010415934
1979-04-01	13.2275592664771
1979-05-01	13.4498080037444
1979-06-01	13.6428143885809
1979-07-01	13.7843351315332
1979-08-01	14.0992631030009
1979-09-01	13.3889487516064
1979-10-01	13.8106167464702
1979-11-01	14.1756203397420
1979-12-01	12.2143720446573
1980-01-01	12.9830446083338
1980-02-01	12.8672432861893
1980-03-01	13.1335694475387
1980-04-01	13.7669663224945
1980-05-01	12.9490191752845
1980-06-01	13.5064696910049
1980-07-01	13.5383333716784
1980-08-01	13.8235208386420
1980-09-01	13.0995658572495
1980-10-01	13.8649963121991
1980-11-01	14.1320974879115
1980-12-01	11.8782704362712
1981-01-01	13.0297227504304
1981-02-01	12.7589011882478
1981-03-01	12.8844705287322
1981-04-01	13.3801599777299
1981-05-01	13.4457332939321
1981-06-01	13.8092697338384
1981-07-01	13.6150833220420
1981-08-01	14.0607302735936
1981-09-01	13.1910651736286
1981-10-01	14.1867848872477
1981-11-01	14.4766188466260
1981-12-01	12.7793822401997
1982-01-01	13.6199727160042
1982-02-01	13.0544216949826
1982-03-01	13.2873261077759
1982-04-01	14.2264631215724
1982-05-01	13.9949204987396
1982-06-01	14.4440449036340
1982-07-01	14.3406002353699
1982-08-01	14.8833722928420
1982-09-01	13.7927734940339
1982-10-01	14.1184134578601
1982-11-01	14.6587522768014
1982-12-01	13.2220274977818
1983-01-01	14.2504109656553
1983-02-01	13.6576972193225
1983-03-01	14.0750732993769
1983-04-01	14.7022694673800
1983-05-01	14.6611598125264
1983-06-01	15.1358813245285
1983-07-01	14.9069660647436
1983-08-01	15.5725978666298
1983-09-01	14.4027230428186
1983-10-01	15.4040774874200
1983-11-01	15.6687293368896
1983-12-01	13.8620333417093
1984-01-01	14.8299696240719
1984-02-01	14.3528932607458
1984-03-01	14.1939606349355
1984-04-01	14.9771032745985
1984-05-01	15.0182158823289
1984-06-01	15.2118278867738
1984-07-01	15.2164491796719
1984-08-01	15.8195159929313
1984-09-01	15.1137050818631
1984-10-01	15.9087346587403
1984-11-01	16.0750811829505
1984-12-01	14.9093765959663
1985-01-01	15.4442335359793
1985-02-01	15.0217545674330
1985-03-01	15.0867198971480
1985-04-01	16.1017011270301
1985-05-01	15.7149278571046
1985-06-01	15.8423332224135
1985-07-01	16.0840741792339
1985-08-01	16.1262726643599
1985-09-01	14.9569167210731
1985-10-01	16.2104829829849
1985-11-01	15.3914917598314
1985-12-01	14.7077276747582
1986-01-01	14.9819454528609
1986-02-01	14.7474620002039
1986-03-01	14.6571630856320
1986-04-01	15.0075528109793
1986-05-01	15.3956336121553
1986-06-01	15.3010106444588
1986-07-01	15.6014225418393
1986-08-01	16.0099149772581
1986-09-01	14.8700760563812
1986-10-01	15.6616371936466
1986-11-01	16.0391683565530
1986-12-01	14.2188305609607
1987-01-01	15.4693710736324
1987-02-01	15.1279474250367
1987-03-01	14.6977074259191
1987-04-01	15.5881472633430
1987-05-01	15.6926416784575
1987-06-01	15.6835597693905
1987-07-01	15.3260059369820
1987-08-01	16.2903729222727
1987-09-01	15.9673282266880
1987-10-01	16.2404187330189
1987-11-01	16.8760483546481
1987-12-01	14.7748864238989
1988-01-01	15.4422827859777
1988-02-01	15.4249695940425
1988-03-01	14.8962499007884
1988-04-01	14.9372633918316
1988-05-01	15.8195982737582
1988-06-01	15.7776855559699
1988-07-01	16.0659003279190
1988-08-01	16.7693968675066
1988-09-01	15.6017803740997
1988-10-01	16.1290361344497
1988-11-01	16.3649376304641
1988-12-01	14.6936403702800
1989-01-01	15.6801178871487
1989-02-01	14.9196345155061
1989-03-01	15.3384282839202
1989-04-01	15.2806325782991
1989-05-01	15.2652868323566
1989-06-01	15.7103935068290
1989-07-01	15.3552878770698
1989-08-01	15.8495115859428
1989-09-01	14.8323551604849
1989-10-01	15.5454929735040
1989-11-01	15.5600189619399
1989-12-01	14.3346120087857
1990-01-01	15.1791756689699
1990-02-01	14.9840935893602
1990-03-01	15.0597966418052
1990-04-01	15.0887352942360
1990-05-01	14.8957139347488
1990-06-01	15.2736150513752
1990-07-01	14.7160153787788
1990-08-01	15.6310455787885
1990-09-01	14.4939468178599
1990-10-01	15.1758934686230
1990-11-01	15.4824571864589
1990-12-01	13.9609942792650
1991-01-01	15.1610655057272
1991-02-01	14.9165980990467
1991-03-01	15.2242396513600
1991-04-01	15.1443944167214
1991-05-01	15.6930287577581
1991-06-01	16.3388635741212
1991-07-01	16.7661570416038
1991-08-01	16.7228651564238
1991-09-01	15.6677153225382
1991-10-01	16.4562012172870
1991-11-01	16.7840226441501
1991-12-01	14.9865118200957
1992-01-01	15.8248676117645
1992-02-01	15.5798271230358
1992-03-01	15.9537873800319
1992-04-01	16.3030376536987
1992-05-01	16.3057481272134
1992-06-01	16.5209862981564
1992-07-01	16.0581793733238
1992-08-01	16.8969801283614
1992-09-01	16.1800139646668
1992-10-01	16.4143913702733
1992-11-01	17.3908191423491
1992-12-01	15.5495638241954
1993-01-01	15.8960844332492
1993-02-01	16.2326283203515
1993-03-01	16.3005717324547
1993-04-01	17.0810996087133
1993-05-01	16.7940978161695
1993-06-01	16.7930084891793
1993-07-01	16.8606057416300
1993-08-01	17.5700392522548
1993-09-01	16.4252808844165
1993-10-01	16.6905842051530
1993-11-01	16.9749759980893
1993-12-01	15.4134007122368
1994-01-01	16.0451000563147
1994-02-01	15.9795135874894
1994-03-01	16.1409944758291
1994-04-01	16.6807175350786
1994-05-01	16.7712896043068
1994-06-01	16.8150420609050
1994-07-01	16.5306366985328
1994-08-01	17.3074069839572
1994-09-01	16.1317430134351
1994-10-01	16.8422907248282
1994-11-01	17.1216257917681
1994-12-01	15.5600766056621
1995-01-01	16.1874335041864
1995-02-01	15.5830400860936
1995-03-01	16.2867247753489
1995-04-01	16.2396490208318
1995-05-01	16.3691080028988
1995-06-01	16.5452118088088
1995-07-01	16.4645220051195
1995-08-01	16.8589126574409
1995-09-01	15.4436377840314
1995-10-01	16.5532157000532
1995-11-01	16.4200980681770
1995-12-01	15.2336970945828
1996-01-01	15.8152016289944
1996-02-01	15.6145975910308
1996-03-01	16.1275587194839
1996-04-01	16.3855164509686
1996-05-01	16.4167104688862
1996-06-01	16.6325634702077
1996-07-01	16.5762859480993
1996-08-01	16.7699795223618
1996-09-01	16.0490323145483
1996-10-01	16.6483505682784
1996-11-01	17.0484891956629
1996-12-01	15.5691070791567
1997-01-01	16.1688327040277
1997-02-01	16.1813953844751
1997-03-01	16.3738526506252
1997-04-01	16.7957587038634
1997-05-01	17.1110326429661
1997-06-01	17.2922115205643
1997-07-01	17.0776786279391
1997-08-01	18.2165418094660
1997-09-01	16.7696562532310
1997-10-01	17.4842911070652
1997-11-01	17.3068699286016
1997-12-01	16.1843296282085
1998-01-01	16.7800059597512
1998-02-01	16.7294015919467
1998-03-01	16.9872489159034
1998-04-01	17.3164935250465
1998-05-01	17.2345489367654
1998-06-01	17.2548200951977
1998-07-01	17.2872373183185
1998-08-01	18.0124869486795
1998-09-01	16.3803033623069
1998-10-01	17.4029290120873
1998-11-01	17.6639525467506
1998-12-01	16.6557210798758
1999-01-01	17.4293264381460
1999-02-01	17.0439660565831
1999-03-01	17.2728369190582
1999-04-01	17.4697805631296
1999-05-01	17.8296446506665
1999-06-01	17.7286583590529
1999-07-01	17.6738427340795
1999-08-01	18.1301067866711
1999-09-01	16.9479439981216
1999-10-01	17.7092988879149
1999-11-01	18.2708632170930
1999-12-01	16.5324990682434
2000-01-01	17.7747645249227
2000-02-01	17.4207952179321
2000-03-01	17.7178408475340
2000-04-01	17.5691698439449
2000-05-01	17.8819163827458
2000-06-01	17.8009963292634
2000-07-01	17.4162900425713
2000-08-01	18.3514187606474
2000-09-01	17.0588575233626
2000-10-01	17.8921128858792
2000-11-01	18.3120552777625
2000-12-01	16.8869299705899
2001-01-01	18.0002780855081
2001-02-01	17.5193527842545
2001-03-01	18.2572917185685
2001-04-01	17.7356137470652
2001-05-01	17.8776748343056
2001-06-01	17.8733621089844
2001-07-01	17.7881853771880
2001-08-01	18.4654673477304
2001-09-01	17.2262167572995
2001-10-01	17.7680540005441
2001-11-01	18.2640538772581
2001-12-01	17.0176812263487
2002-01-01	17.6091966110298
2002-02-01	17.2651127807015
2002-03-01	17.7437488516087
2002-04-01	17.7856941645189
2002-05-01	17.9597092172312
2002-06-01	17.8858610239386
2002-07-01	18.3637412531882
2002-08-01	18.5807295465669
2002-09-01	17.5154988926439
2002-10-01	18.3529685099229
2002-11-01	18.3197564530638
2002-12-01	16.8045221076489
2003-01-01	17.4501256322621
2003-02-01	17.2012299290142
2003-03-01	17.8110620303812
2003-04-01	18.0578114795270
2003-05-01	18.2901066932240
2003-06-01	18.4725032979413
2003-07-01	18.6094743589899
2003-08-01	18.9902975249593
2003-09-01	17.8061574624994
2003-10-01	18.0696589092526
2003-11-01	18.6892673757558
2003-12-01	16.9205346856930
2004-01-01	17.8462918437194
2004-02-01	17.5606371500923
2004-03-01	17.9385120025917
2004-04-01	17.8138781443533
2004-05-01	18.0882329029696
2004-06-01	18.1076767151183
2004-07-01	18.2271598616097
2004-08-01	19.1205702658932
2004-09-01	17.5336117079947
2004-10-01	18.1678081669257
2004-11-01	18.3736334002305
2004-12-01	17.0618927006441
2005-01-01	17.7651106608827
2005-02-01	17.2606820313875
2005-03-01	17.2915659135404
2005-04-01	17.0491774549046
2005-05-01	17.4344931293168
2005-06-01	17.4205339007727
2005-07-01	17.6464164857893
2005-08-01	17.8415696822425
2005-09-01	16.8609456852510
2005-10-01	17.5992380991078
2005-11-01	17.8940769507329
2005-12-01	16.5283739536362
2006-01-01	17.5592932940530
2006-02-01	16.8948907621429
2006-03-01	17.0336937016453
2006-04-01	17.3107873070752
2006-05-01	17.6304683588694
2006-06-01	17.4374558453241
2006-07-01	17.2181098885747
2006-08-01	17.8105433746924
2006-09-01	16.5902072945721
2006-10-01	17.4383372655210
2006-11-01	17.8730230578511
2006-12-01	16.2748451970786
2007-01-01	17.4434905155882
2007-02-01	16.8558418050351
2007-03-01	16.9284794514292
2007-04-01	17.0075417520856
2007-05-01	17.0586148803924
2007-06-01	17.1142407280768
2007-07-01	17.1742511483406
2007-08-01	17.6939403544528
2007-09-01	16.6996212777717
2007-10-01	17.2659150387528
2007-11-01	17.3201385086348
2007-12-01	15.8637664684254
2008-01-01	16.7528577220039
2008-02-01	16.7097978484231
2008-03-01	16.7090899898020
2008-04-01	16.8082689004703
2008-05-01	16.9922297079033
2008-06-01	16.8013010800598
2008-07-01	17.2186689911348
2008-08-01	17.8182444383076
2008-09-01	16.5781265165536
2008-10-01	17.0891480869184
2008-11-01	17.7182784814618
2008-12-01	16.2587085778119
2009-01-01	17.3109490745247
2009-02-01	16.7577456156451
2009-03-01	17.0540209416625
2009-04-01	17.1777551627220
2009-05-01	17.2138310623040
2009-06-01	17.6355530244734
2009-07-01	17.7003566088790
2009-08-01	18.2409276312994
2009-09-01	17.2552312142868
2009-10-01	17.7399876857245
2009-11-01	17.9798236509225
2009-12-01	16.5810226353395
2010-01-01	17.2926347257213
2010-02-01	16.7946014591693
2010-03-01	16.9504294697390
2010-04-01	17.0762938328739
2010-05-01	17.5066603350514
2010-06-01	17.4730074850520
2010-07-01	17.3471046062361
2010-08-01	18.0546418095050
2010-09-01	16.7019941553666
2010-10-01	16.8521051423986
2010-11-01	17.2708034765422
2010-12-01	15.9126481007246
2011-01-01	16.8288320956376
2011-02-01	16.3660624328529
2011-03-01	16.6990809068175
2011-04-01	17.0896872940890
2011-05-01	17.1650728398781
2011-06-01	17.5507941005621
2011-07-01	17.3923454558140
2011-08-01	17.9809476142319
2011-09-01	16.9147327185183
2011-10-01	17.2956288164979
2011-11-01	17.7768028485368
2011-12-01	16.8236207631322
2012-01-01	17.5046153541584
2012-02-01	17.0705851056137
2012-03-01	17.3408294207712
2012-04-01	17.5699526714304
2012-05-01	17.4462608444574
2012-06-01	17.8804385444187
2012-07-01	17.7535391095388
2012-08-01	18.4131580438004
2012-09-01	17.1022766852730
2012-10-01	17.5046950804261
2012-11-01	18.0287129151051
2012-12-01	16.6254694015502
2013-01-01	17.5169029667772
2013-02-01	16.9344298582587
2013-03-01	17.2360082551725
2013-04-01	17.4845730761877
2013-05-01	17.3989062045157
2013-06-01	17.6048190024191
2013-07-01	17.6712530522784
2013-08-01	18.5047792279908
2013-09-01	17.6038108665726
2013-10-01	17.8374808930985
2013-11-01	18.3064647143472
2013-12-01	17.3288087208651
2014-01-01	18.1710545944877
2014-02-01	17.2981679765465
2014-03-01	17.8106616520104
2014-04-01	17.8355407698543
2014-05-01	18.1739681043328
2014-06-01	18.0666728488562
2014-07-01	17.8588337576529
2014-08-01	18.1830417785653
2014-09-01	18.2261795133084
2014-10-01	18.0460684672501
2014-11-01	17.8242764306445
2014-12-01	17.0964188269893
2015-01-01	17.5689411502235
2015-02-01	16.5086440320686
2015-03-01	16.8442717682872
2015-04-01	17.2829038519116
2015-05-01	17.1383609208298
2015-06-01	17.5936920824219
2015-07-01	17.2923003542886
2015-08-01	17.8928904792212
2015-09-01	17.6818341374719
2015-10-01	17.4650435540991
2015-11-01	17.6804016272283
2015-12-01	16.7887734243752
2016-01-01	17.1929333899145
2016-02-01	16.7607671223899
2016-03-01	17.3241045718997
2016-04-01	17.6527075931740
2016-05-01	17.4473683003419
2016-06-01	17.9607247382012
2016-07-01	17.8178069298440
2016-08-01	18.2921463930647
2016-09-01	18.3517375842091
2016-10-01	18.1664044439222
2016-11-01	18.0381028425705
2016-12-01	17.0315056123999
2017-01-01	18.3960014661299
2017-02-01	16.9128331813995
2017-03-01	17.2186042469140
2017-04-01	17.2663483282730
2017-05-01	17.3788094525127
2017-06-01	17.6101354404485
2017-07-01	17.3951329304800
2017-08-01	17.8450324195761
2017-09-01	17.4562034111753
2017-10-01	17.7482946271536
2017-11-01	17.2381619586727
2017-12-01	16.2751893117690
2018-01-01	17.2659363788621
2018-02-01	16.2902102780207
2018-03-01	16.8750220091708
2018-04-01	16.9649185975674
2018-05-01	17.2090739882920
2018-06-01	17.1417652675605
2018-07-01	17.2420575322414
2018-08-01	17.5693093498148
2018-09-01	17.5514307017192