Month	Percent
1978-02-01	47.6399952804898
1978-03-01	47.7808045869963
1978-04-01	47.4901037467181
1978-05-01	47.3847388293260
1978-06-01	47.0103463565891
1978-07-01	47.0236747907422
1978-08-01	46.6753961051994
1978-09-01	46.1472683861590
1978-10-01	46.0364835867300
1978-11-01	45.3358525401175
1978-12-01	45.6156852721242
1979-01-01	44.6998552824988
1979-02-01	45.5468293169942
1979-03-01	44.9615889679651
1979-04-01	44.8556734298842
1979-05-01	44.6932523982764
1979-06-01	45.1899708302252
1979-07-01	45.1174127886084
1979-08-01	44.3072012079616
1979-09-01	45.1235794056344
1979-10-01	44.7219742409437
1979-11-01	44.6210435265213
1979-12-01	44.6673714302870
1980-01-01	43.9966507054331
1980-02-01	44.3375149981731
1980-03-01	45.0590249706622
1980-04-01	44.7703175486285
1980-05-01	45.5962774264405
1980-06-01	44.9340768040889
1980-07-01	45.3041012591476
1980-08-01	44.8781301441278
1980-09-01	45.9368799618341
1980-10-01	44.4840126075036
1980-11-01	44.6414037896050
1980-12-01	44.6068390996377
1981-01-01	43.2645246612291
1981-02-01	43.8439383903066
1981-03-01	43.9190510914434
1981-04-01	43.6747197913636
1981-05-01	43.5119226931485
1981-06-01	43.4207420151488
1981-07-01	44.2775831334156
1981-08-01	44.1717260358382
1981-09-01	44.9885189219314
1981-10-01	44.4659742425987
1981-11-01	43.8079861695957
1981-12-01	43.4040599536816
1982-01-01	42.5786743689464
1982-02-01	42.8940254497742
1982-03-01	43.6083951663885
1982-04-01	42.3740374077192
1982-05-01	42.2369178739832
1982-06-01	42.1701615981749
1982-07-01	41.4457065370230
1982-08-01	41.1280346554494
1982-09-01	42.9073924913695
1982-10-01	43.0747499602845
1982-11-01	42.2004045495802
1982-12-01	42.0990705892885
1983-01-01	41.2141044658130
1983-02-01	42.2841406613292
1983-03-01	42.5498243847447
1983-04-01	41.8121518584747
1983-05-01	41.2746056835391
1983-06-01	41.1575527736393
1983-07-01	41.4639862192856
1983-08-01	40.9131482006760
1983-09-01	42.1470168521936
1983-10-01	40.9618373664024
1983-11-01	40.8841492588105
1983-12-01	41.7881688563562
1984-01-01	40.4645200478988
1984-02-01	41.7802756612952
1984-03-01	42.0744584212471
1984-04-01	41.5458482586956
1984-05-01	41.0347929675688
1984-06-01	41.8352128319678
1984-07-01	41.2509633267328
1984-08-01	40.2768445942338
1984-09-01	41.6352693861964
1984-10-01	40.9208094562078
1984-11-01	41.0205493036801
1984-12-01	41.0237975288806
1985-01-01	39.8473229594801
1985-02-01	40.4692499308734
1985-03-01	41.1251285283128
1985-04-01	39.6936379755615
1985-05-01	39.7103875069732
1985-06-01	40.5371146972993
1985-07-01	40.3242309447250
1985-08-01	39.7207351826937
1985-09-01	41.8540400497932
1985-10-01	41.2964431240090
1985-11-01	41.9923508097967
1985-12-01	41.4099093030524
1986-01-01	40.7830630969688
1986-02-01	41.1415118087812
1986-03-01	41.9893521277161
1986-04-01	42.1399008506378
1986-05-01	41.8531504206262
1986-06-01	41.7655721914230
1986-07-01	41.0581773348494
1986-08-01	40.8778318303096
1986-09-01	42.1054543302072
1986-10-01	41.5030453433675
1986-11-01	42.3826983240322
1986-12-01	42.0442357308342
1987-01-01	40.7155867359566
1987-02-01	41.7057438097737
1987-03-01	43.3515201256689
1987-04-01	42.1167087114838
1987-05-01	42.3159097001248
1987-06-01	41.9762384571703
1987-07-01	41.8013940806335
1987-08-01	40.9059576502033
1987-09-01	41.6531970402603
1987-10-01	42.0475947424471
1987-11-01	41.3876544900131
1987-12-01	41.6641361878608
1988-01-01	41.0124420960094
1988-02-01	41.6456581836758
1988-03-01	43.2999423504456
1988-04-01	42.7272083872095
1988-05-01	42.2527552800043
1988-06-01	42.5220771009370
1988-07-01	42.0955529700472
1988-08-01	41.7721188148435
1988-09-01	42.8383054556147
1988-10-01	41.9389338228038
1988-11-01	42.4977043756008
1988-12-01	42.5256808734273
1989-01-01	41.3103334513916
1989-02-01	43.1041375283335
1989-03-01	43.6747453989102
1989-04-01	43.2197611684280
1989-05-01	43.9092492903121
1989-06-01	43.1000387739445
1989-07-01	42.8716487657800
1989-08-01	42.5930241664683
1989-09-01	44.4311213170502
1989-10-01	43.1047124095684
1989-11-01	43.8949093524037
1989-12-01	42.9175024675493
1990-01-01	41.3956959975808
1990-02-01	42.5046845488501
1990-03-01	42.9332376818607
1990-04-01	43.0402260506364
1990-05-01	43.6569594251100
1990-06-01	43.8779817541986
1990-07-01	44.5431811607609
1990-08-01	44.1266833989240
1990-09-01	45.7120941361880
1990-10-01	45.0626537811046
1990-11-01	45.3616223635197
1990-12-01	44.5910257106750
1991-01-01	43.2051123492123
1991-02-01	44.3828965298758
1991-03-01	43.8353177774050
1991-04-01	43.8013116144847
1991-05-01	43.8571217729820
1991-06-01	43.7096106369412
1991-07-01	42.1977679873291
1991-08-01	42.7096049536442
1991-09-01	44.3673031829343
1991-10-01	43.4429032132475
1991-11-01	43.9618938825955
1991-12-01	43.9209801454788
1992-01-01	43.0842425847205
1992-02-01	43.6915962261937
1992-03-01	43.4774190014631
1992-04-01	43.5074642519803
1992-05-01	43.2945179709538
1992-06-01	43.8052392009659
1992-07-01	44.0881401336742
1992-08-01	43.0635818446906
1992-09-01	44.2811914322960
1992-10-01	43.9908600658709
1992-11-01	42.9722115118977
1992-12-01	42.4230354570471
1993-01-01	42.0113737323060
1993-02-01	42.3514375651047
1993-03-01	43.8071057981025
1993-04-01	42.5095340653402
1993-05-01	43.3652346789454
1993-06-01	42.9948479424515
1993-07-01	43.1928543543320
1993-08-01	42.4085508520853
1993-09-01	44.3854442632373
1993-10-01	44.3247507520427
1993-11-01	44.4887238489199
1993-12-01	44.2106065689802
1994-01-01	43.3358752164624
1994-02-01	44.4160394508628
1994-03-01	45.3491755108037
1994-04-01	44.8484456471089
1994-05-01	45.1247365676202
1994-06-01	44.5587610135047
1994-07-01	44.5200463192799
1994-08-01	43.6371228952241
1994-09-01	45.7388465916633
1994-10-01	44.3166459133598
1994-11-01	44.7002239564797
1994-12-01	44.7633981117777
1995-01-01	43.0693582592117
1995-02-01	44.8178842568141
1995-03-01	44.8921266499589
1995-04-01	45.2138445440638
1995-05-01	45.0760471099620
1995-06-01	44.8810184106996
1995-07-01	44.5706424533037
1995-08-01	44.4958090139129
1995-09-01	46.3481947533589
1995-10-01	45.3569022900189
1995-11-01	46.1064019658204
1995-12-01	45.6912159452820
1996-01-01	44.6480675554901
1996-02-01	45.5705531033033
1996-03-01	46.4292933603109
1996-04-01	45.5042401535360
1996-05-01	45.4879005408080
1996-06-01	46.2367614196742
1996-07-01	45.7598329605551
1996-08-01	45.5308625158583
1996-09-01	46.5542517267993
1996-10-01	45.8190672816539
1996-11-01	45.8069543563318
1996-12-01	45.7018010521947
1997-01-01	44.7772604233508
1997-02-01	45.9318326106662
1997-03-01	46.6310575679234
1997-04-01	46.3333185068610
1997-05-01	45.3204960472243
1997-06-01	45.8825998024652
1997-07-01	45.5146430490707
1997-08-01	45.1654612313724
1997-09-01	46.7523155080991
1997-10-01	44.8747787436692
1997-11-01	46.3634543748767
1997-12-01	46.2531292692268
1998-01-01	44.7894796609163
1998-02-01	45.4624896552671
1998-03-01	46.2131530053284
1998-04-01	46.3921955609325
1998-05-01	47.0493133263686
1998-06-01	47.3437930011202
1998-07-01	47.1535325757058
1998-08-01	46.3301770957985
1998-09-01	48.1933163447449
1998-10-01	46.4523551817685
1998-11-01	46.7931353461349
1998-12-01	46.4125208159147
1999-01-01	45.2668856486658
1999-02-01	45.7540517051281
1999-03-01	46.0405077511954
1999-04-01	46.1332396426409
1999-05-01	45.7218712585305
1999-06-01	46.5017633323277
1999-07-01	46.5263012098996
1999-08-01	46.5371377554277
1999-09-01	48.1464724916616
1999-10-01	47.2239722081501
1999-11-01	47.7763107996726
1999-12-01	47.3862418199306
2000-01-01	46.4372634244799
2000-02-01	47.3502705917301
2000-03-01	47.9120401776928
2000-04-01	48.3322342718589
2000-05-01	48.3745226214210
2000-06-01	48.5599497996616
2000-07-01	48.4528068203505
2000-08-01	48.7828855629004
2000-09-01	49.4938880711674
2000-10-01	48.6917858293557
2000-11-01	48.1977986802002
2000-12-01	48.2694153496163
2001-01-01	46.7020769454722
2001-02-01	48.1315263793484
2001-03-01	48.2697931495144
2001-04-01	49.0999160025726
2001-05-01	49.1110081310592
2001-06-01	49.5618784320714
2001-07-01	48.7049032822642
2001-08-01	48.4735779166219
2001-09-01	50.2386910835875
2001-10-01	49.7672635889477
2001-11-01	49.6303410972300
2001-12-01	49.8195128104634
2002-01-01	49.0100638296852
2002-02-01	50.8213495374030
2002-03-01	50.7759097945699
2002-04-01	50.6093324931596
2002-05-01	50.6793982777704
2002-06-01	50.9108601085302
2002-07-01	49.9477492755770
2002-08-01	49.9101010302925
2002-09-01	51.3331902816419
2002-10-01	50.7197362058917
2002-11-01	51.2331215809299
2002-12-01	51.7612003834700
2003-01-01	50.7634380939610
2003-02-01	52.0039286052184
2003-03-01	52.2903832052320
2003-04-01	51.8842666326494
2003-05-01	52.7547259483477
2003-06-01	52.6429314086409
2003-07-01	52.1899853516936
2003-08-01	52.0687685206207
2003-09-01	53.0549378094517
2003-10-01	52.4790712954138
2003-11-01	52.2921165029671
2003-12-01	52.6122281349698
2004-01-01	50.8818776225618
2004-02-01	52.5626866636687
2004-03-01	52.9551442038355
2004-04-01	52.9402155462946
2004-05-01	53.8134477577355
2004-06-01	54.3210361691847
2004-07-01	54.1303845778129
2004-08-01	53.6552067912448
2004-09-01	55.3565289673143
2004-10-01	54.6134244230754
2004-11-01	54.1773240642632
2004-12-01	53.7938880660073
2005-01-01	53.4259514797247
2005-02-01	53.8384686374508
2005-03-01	55.1390673224971
2005-04-01	55.2908353219958
2005-05-01	55.0016407340451
2005-06-01	55.4538428153888
2005-07-01	55.6370269280206
2005-08-01	55.3601715254976
2005-09-01	56.4385170148542
2005-10-01	56.1436225832758
2005-11-01	56.2181212922973
2005-12-01	56.0775589473588
2006-01-01	54.5938520413252
2006-02-01	56.4613621599336
2006-03-01	57.4821299758603
2006-04-01	56.8375955584968
2006-05-01	57.2759995839037
2006-06-01	57.4773516351326
2006-07-01	57.3945499168020
2006-08-01	57.7461888575958
2006-09-01	58.8995910494888
2006-10-01	57.9208908780357
2006-11-01	57.3624227226424
2006-12-01	57.7088082609757
2007-01-01	56.7789629160269
2007-02-01	57.4720830246118
2007-03-01	58.0445895378249
2007-04-01	58.0785481269279
2007-05-01	58.5459106911537
2007-06-01	58.8019468062112
2007-07-01	58.0984852222228
2007-08-01	58.2276915580387
2007-09-01	58.8593421934619
2007-10-01	58.0006197393607
2007-11-01	58.1289885901403
2007-12-01	58.1226529566882
2008-01-01	57.0245445061331
2008-02-01	57.6054031354153
2008-03-01	57.8178174777237
2008-04-01	58.5956536361870
2008-05-01	59.0055195486203
2008-06-01	59.4577609358584
2008-07-01	58.9114116537642
2008-08-01	59.1414703147656
2008-09-01	60.5154079000492
2008-10-01	59.1878932702926
2008-11-01	59.4668214698810
2008-12-01	59.4372641663703
2009-01-01	59.0068717584681
2009-02-01	61.0670737556485
2009-03-01	61.0832822233620
2009-04-01	60.7691181762908
2009-05-01	61.1621838554505
2009-06-01	61.4531042602246
2009-07-01	60.9881070470329
2009-08-01	60.8142371545015
2009-09-01	61.1715486491963
2009-10-01	61.0047942195987
2009-11-01	61.7678173538855
2009-12-01	62.3719129231252
2010-01-01	60.7761275998829
2010-02-01	62.2532892929172
2010-03-01	62.5142592562063
2010-04-01	62.5785058280811
2010-05-01	62.1311510610695
2010-06-01	62.3760437266469
2010-07-01	62.7019019638040
2010-08-01	62.4760251717778
2010-09-01	63.8449872332646
2010-10-01	63.2949810732258
2010-11-01	63.3303141689533
2010-12-01	63.4042686788279
2011-01-01	61.8323537587817
2011-02-01	62.9199929159517
2011-03-01	63.6213107277788
2011-04-01	63.1520399414286
2011-05-01	63.2144179496690
2011-06-01	63.7089616056153
2011-07-01	63.3079052159107
2011-08-01	63.6775565598160
2011-09-01	63.9659803924623
2011-10-01	63.3749796880521
2011-11-01	63.2392943531927
2011-12-01	63.1416995457904
2012-01-01	61.9777598617217
2012-02-01	62.8579745041065
2012-03-01	63.6640552242021
2012-04-01	63.7959186769544
2012-05-01	63.7453472048510
2012-06-01	63.6425758685311
2012-07-01	64.0124312738866
2012-08-01	63.4756928765382
2012-09-01	64.5379417573563
2012-10-01	64.2290118340877
2012-11-01	63.7561637116796
2012-12-01	63.8312314883492
2013-01-01	62.3531538256506
2013-02-01	64.2594176070614
2013-03-01	64.2323377093949
2013-04-01	64.6902338042632
2013-05-01	64.2703281074853
2013-06-01	64.1529403251703
2013-07-01	63.4341989453980
2013-08-01	63.7943676467024
2013-09-01	64.3766182827914
2013-10-01	63.7559476520261
2013-11-01	63.3648834968323
2013-12-01	63.4109347650388
2014-01-01	62.0899096769152
2014-02-01	63.9234596423944
2014-03-01	64.0203227157231
2014-04-01	63.9733629059614
2014-05-01	63.9114749543661
2014-06-01	64.6306345334863
2014-07-01	64.9993633203255
2014-08-01	64.9056188539080
2014-09-01	63.8186524692900
2014-10-01	64.2033525916432
2014-11-01	63.9134306019318
2014-12-01	64.0465669075893
2015-01-01	63.1382011604702
2015-02-01	64.5821277009691
2015-03-01	64.2158719967386
2015-04-01	64.6659973553809
2015-05-01	64.9697895964547
2015-06-01	64.9963783112659
2015-07-01	65.1083390212909
2015-08-01	64.5134792296435
2015-09-01	64.8149505975119
2015-10-01	65.8904371305203
2015-11-01	66.0956318751111
2015-12-01	65.4707879274299
2016-01-01	64.8685749657526
2016-02-01	66.0166767604849
2016-03-01	66.0426138221265
2016-04-01	65.5861912872353
2016-05-01	65.7915882401452
2016-06-01	65.3365049698472
2016-07-01	64.7078473437852
2016-08-01	64.9271658812060
2016-09-01	64.3188887028966
2016-10-01	64.7018971921642
2016-11-01	65.3302699025175
2016-12-01	65.2680975097830
2017-01-01	64.1615045754907
2017-02-01	65.6600457573887
2017-03-01	65.7691021073158
2017-04-01	65.9878953473331
2017-05-01	66.8380805725830
2017-06-01	66.8744735047648
2017-07-01	66.3294052418398
2017-08-01	66.5402889488529
2017-09-01	66.7766807474812
2017-10-01	66.5290725300553
2017-11-01	67.1387018852512
2017-12-01	66.7731946796660
2018-01-01	65.3411970996057
2018-02-01	67.2068691577720
2018-03-01	66.5866202306016
2018-04-01	65.8388212130818
2018-05-01	66.5492083998734
2018-06-01	67.1495169219226
2018-07-01	66.7456942442102
2018-08-01	67.1231023960178
2018-09-01	66.7641344447658