Month	Percent
1978-02-01	69.5384326524130
1978-03-01	70.3965693781780
1978-04-01	70.7114859752876
1978-05-01	70.5642439959705
1978-06-01	70.4552255448114
1978-07-01	70.5321356712118
1978-08-01	70.4945952896846
1978-09-01	70.6945681758003
1978-10-01	70.9322279872193
1978-11-01	70.8689589049816
1978-12-01	71.0339037610114
1979-01-01	68.8287597557275
1979-02-01	70.0711862463478
1979-03-01	70.9194317756833
1979-04-01	70.8160505404980
1979-05-01	70.5186083866242
1979-06-01	70.7950232874578
1979-07-01	70.7889735628332
1979-08-01	70.5137035201648
1979-09-01	71.1816381130189
1979-10-01	71.5202615602610
1979-11-01	71.4874425836512
1979-12-01	71.1968530086283
1980-01-01	69.2862514805312
1980-02-01	70.6881309341187
1980-03-01	71.6389129597320
1980-04-01	70.9689662122068
1980-05-01	71.0696249927060
1980-06-01	71.1620975576970
1980-07-01	71.5502608297433
1980-08-01	71.3951894373010
1980-09-01	71.7786838212304
1980-10-01	71.5602245311813
1980-11-01	71.6407745784386
1980-12-01	71.5468047771915
1981-01-01	69.5974391996846
1981-02-01	70.8495577941314
1981-03-01	71.6627793093269
1981-04-01	71.7152205664093
1981-05-01	71.4027299507993
1981-06-01	71.5179887770576
1981-07-01	71.5568235164525
1981-08-01	71.2913897973110
1981-09-01	72.2302813626886
1981-10-01	71.6958386030878
1981-11-01	71.7305893755862
1981-12-01	71.4463921139809
1982-01-01	69.6079109360101
1982-02-01	70.6995342035794
1982-03-01	71.5589255164270
1982-04-01	70.9583741137792
1982-05-01	70.9999463292200
1982-06-01	70.8697781711834
1982-07-01	70.9500468970298
1982-08-01	70.5670787812514
1982-09-01	70.9013152868086
1982-10-01	70.6236684354103
1982-11-01	70.2508622084736
1982-12-01	69.6900561719520
1983-01-01	67.3693329337612
1983-02-01	68.7738840458771
1983-03-01	69.3988739747871
1983-04-01	68.5751618254845
1983-05-01	68.6930612399507
1983-06-01	68.6660303343510
1983-07-01	68.9615465620510
1983-08-01	68.5376126591542
1983-09-01	69.4305984239044
1983-10-01	69.0900852786364
1983-11-01	69.5674852279510
1983-12-01	69.5414997987779
1984-01-01	67.2992550476909
1984-02-01	68.8303030453442
1984-03-01	70.3103701993480
1984-04-01	69.9464890044655
1984-05-01	70.0324915403008
1984-06-01	70.2026738835008
1984-07-01	70.3138899853307
1984-08-01	69.9563324375156
1984-09-01	70.8365745984720
1984-10-01	70.7468646245410
1984-11-01	70.9811466704111
1984-12-01	70.8590852653590
1985-01-01	68.5357385988245
1985-02-01	70.4374121062214
1985-03-01	71.1948381834276
1985-04-01	70.1849407931765
1985-05-01	70.7899965057131
1985-06-01	70.7425894209286
1985-07-01	71.2719682613436
1985-08-01	71.1469519557133
1985-09-01	71.7872597302260
1985-10-01	71.5490988548921
1985-11-01	72.6672848049232
1985-12-01	72.4261462386288
1986-01-01	70.3586719560324
1986-02-01	71.7651338182057
1986-03-01	72.7561316470500
1986-04-01	72.7446584495236
1986-05-01	72.6869106795567
1986-06-01	73.1136254117837
1986-07-01	73.1422385800022
1986-08-01	72.4836988486357
1986-09-01	73.3662076251515
1986-10-01	73.3565219227312
1986-11-01	73.1748143378859
1986-12-01	73.1113985297951
1987-01-01	70.7111079274205
1987-02-01	72.2227899312705
1987-03-01	73.2765099833322
1987-04-01	72.8870012868209
1987-05-01	72.9228621748957
1987-06-01	73.1970624870000
1987-07-01	73.1906425919243
1987-08-01	73.0986806098319
1987-09-01	73.6632012316322
1987-10-01	73.2546859091006
1987-11-01	73.2613127934344
1987-12-01	73.6713371864907
1988-01-01	72.0153347072397
1988-02-01	73.1736714409614
1988-03-01	74.4600125838146
1988-04-01	74.3491627031875
1988-05-01	74.2165678934809
1988-06-01	74.3351078559310
1988-07-01	74.0532636498557
1988-08-01	73.9737842133360
1988-09-01	75.0985897236737
1988-10-01	74.7271313259780
1988-11-01	75.1071217131848
1988-12-01	74.9678248613530
1989-01-01	72.6970065714902
1989-02-01	74.1794399291838
1989-03-01	75.1144343532496
1989-04-01	75.4150308308242
1989-05-01	75.7163755398719
1989-06-01	75.5706000368349
1989-07-01	75.6316193602381
1989-08-01	75.7267711196969
1989-09-01	76.5547854438734
1989-10-01	76.1127925999154
1989-11-01	76.9270772059428
1989-12-01	76.8472770061533
1990-01-01	74.4934926542002
1990-02-01	75.8759301110239
1990-03-01	76.7494784620636
1990-04-01	76.6218135696817
1990-05-01	76.7888510164331
1990-06-01	76.6335067764503
1990-07-01	76.3213724691533
1990-08-01	75.7903611263479
1990-09-01	76.2729985130967
1990-10-01	75.6441980067298
1990-11-01	75.5898040311474
1990-12-01	75.6279379999174
1991-01-01	73.2325155643310
1991-02-01	74.4469677138110
1991-03-01	74.8803892382988
1991-04-01	74.7547241190889
1991-05-01	74.8917331985619
1991-06-01	74.7134848776339
1991-07-01	73.8380665682839
1991-08-01	74.2266139131635
1991-09-01	74.7244910511001
1991-10-01	73.9516941396818
1991-11-01	73.7805978441337
1991-12-01	73.7617092369115
1992-01-01	72.0646926172912
1992-02-01	73.1205040250444
1992-03-01	73.8010718265184
1992-04-01	73.4885394717686
1992-05-01	73.4390027706676
1992-06-01	73.4806997450795
1992-07-01	73.2785488782776
1992-08-01	73.2808495084831
1992-09-01	73.8479713714944
1992-10-01	73.5123334759034
1992-11-01	73.1011362522606
1992-12-01	73.0529432945732
1993-01-01	71.2755934734198
1993-02-01	71.9372136326204
1993-03-01	73.1359140807285
1993-04-01	72.3876999304775
1993-05-01	72.8308997523935
1993-06-01	72.9763818301311
1993-07-01	72.7504510212218
1993-08-01	72.7048149503142
1993-09-01	73.6540997460597
1993-10-01	73.5521130638054
1993-11-01	73.4260951040197
1993-12-01	73.5383120502126
1994-01-01	71.3654831151414
1994-02-01	72.6172839016130
1994-03-01	73.3303654646410
1994-04-01	73.2000437657774
1994-05-01	73.5873278858072
1994-06-01	73.7187333541584
1994-07-01	74.1525921796816
1994-08-01	73.5905782383810
1994-09-01	74.9201968882452
1994-10-01	74.1357046601640
1994-11-01	74.1522741750276
1994-12-01	74.4822319883189
1995-01-01	72.6743087400849
1995-02-01	73.9546367782023
1995-03-01	74.6226399073887
1995-04-01	74.8333141844247
1995-05-01	75.1268472946176
1995-06-01	75.4581947461322
1995-07-01	75.4494490524836
1995-08-01	75.1298178461632
1995-09-01	75.9598259052022
1995-10-01	75.3505747599040
1995-11-01	75.9576253538475
1995-12-01	76.0115292662514
1996-01-01	73.9000509612679
1996-02-01	75.0235167979310
1996-03-01	75.3247664210518
1996-04-01	74.6305320603215
1996-05-01	75.1197003378979
1996-06-01	75.1155940250035
1996-07-01	75.1541717212171
1996-08-01	74.7418314587706
1996-09-01	75.4604657774113
1996-10-01	74.9600735943975
1996-11-01	75.1345267408660
1996-12-01	75.3011012566699
1997-01-01	73.4750238653932
1997-02-01	74.5787991429712
1997-03-01	74.8587577400346
1997-04-01	74.7652659514559
1997-05-01	74.7769867668135
1997-06-01	74.9957020455470
1997-07-01	75.1489806021879
1997-08-01	74.4071914748418
1997-09-01	75.8874427470234
1997-10-01	75.1294267569489
1997-11-01	75.4348979722154
1997-12-01	75.3957168603862
1998-01-01	73.5554233559359
1998-02-01	74.6081580400487
1998-03-01	74.9464168465517
1998-04-01	75.1696286290791
1998-05-01	75.0626769854968
1998-06-01	75.2834231715959
1998-07-01	75.3702862805434
1998-08-01	74.8991450410683
1998-09-01	76.0250422703537
1998-10-01	75.6855926843640
1998-11-01	75.2760490499778
1998-12-01	75.7876507333308
1999-01-01	73.8667381833300
1999-02-01	74.8802002248754
1999-03-01	75.4730205116968
1999-04-01	75.3011468306085
1999-05-01	75.3471754461314
1999-06-01	75.7537434597417
1999-07-01	75.8035307382739
1999-08-01	75.2032284894890
1999-09-01	76.1355821491804
1999-10-01	75.8009191788826
1999-11-01	75.9773597573198
1999-12-01	76.3537910813471
2000-01-01	74.0826470340863
2000-02-01	75.2801115479640
2000-03-01	75.8307780618374
2000-04-01	76.1867960305756
2000-05-01	76.0319860012900
2000-06-01	76.6744859762435
2000-07-01	77.0414835127638
2000-08-01	76.6067126814013
2000-09-01	77.3704130842707
2000-10-01	76.6237883393989
2000-11-01	76.2385712483234
2000-12-01	76.7716877682218
2001-01-01	74.8373648780837
2001-02-01	75.8502706191481
2001-03-01	76.1619259795614
2001-04-01	76.6294968539611
2001-05-01	76.4801801183470
2001-06-01	76.5486084440482
2001-07-01	76.5475778275930
2001-08-01	76.1761106689128
2001-09-01	76.8863230553894
2001-10-01	76.4066637919176
2001-11-01	76.2975516807039
2001-12-01	76.5406115835876
2002-01-01	75.1845966071850
2002-02-01	75.9060254788889
2002-03-01	76.4177130819861
2002-04-01	76.3644004365208
2002-05-01	76.4885864224651
2002-06-01	76.8960005555524
2002-07-01	76.8701721435341
2002-08-01	76.8411902130133
2002-09-01	77.5049045799834
2002-10-01	77.0462483451649
2002-11-01	77.4846844206587
2002-12-01	77.7087435172526
2003-01-01	76.3964867270494
2003-02-01	77.3608762351960
2003-03-01	77.3394885000574
2003-04-01	77.3687844485063
2003-05-01	77.3096456734198
2003-06-01	77.2931705733454
2003-07-01	76.9903021650837
2003-08-01	77.0092870937561
2003-09-01	77.9630039581673
2003-10-01	77.4529959745967
2003-11-01	77.2357735330486
2003-12-01	77.5765888676168
2004-01-01	76.1748343986873
2004-02-01	76.6318495407919
2004-03-01	77.3540928695283
2004-04-01	77.2463476490165
2004-05-01	77.3872718642097
2004-06-01	77.3643066541446
2004-07-01	77.3093635201605
2004-08-01	77.2405463073426
2004-09-01	78.1107911935827
2004-10-01	78.0539252176675
2004-11-01	78.1055548699740
2004-12-01	78.4220040515665
2005-01-01	77.0755587838941
2005-02-01	78.1977062028924
2005-03-01	78.7368558463906
2005-04-01	78.7627028804717
2005-05-01	78.7923426080300
2005-06-01	79.0484661047708
2005-07-01	78.8848277023663
2005-08-01	78.8205961600982
2005-09-01	79.6357403446711
2005-10-01	79.0820942472295
2005-11-01	78.8497536057623
2005-12-01	79.2896939544854
2006-01-01	77.5015492809398
2006-02-01	78.2966649313321
2006-03-01	78.9699593907808
2006-04-01	78.8548203947732
2006-05-01	79.2834364117785
2006-06-01	79.2905702322374
2006-07-01	79.5490422689885
2006-08-01	79.1001764713463
2006-09-01	80.2408389176014
2006-10-01	79.3471322504192
2006-11-01	79.5563553356010
2006-12-01	80.1489525302432
2007-01-01	78.2603022957789
2007-02-01	79.2769021443642
2007-03-01	79.7548482510831
2007-04-01	79.5570202929872
2007-05-01	79.8853952981032
2007-06-01	79.9849593809266
2007-07-01	80.0519474203213
2007-08-01	79.8696633843404
2007-09-01	80.9630068177078
2007-10-01	80.3020772186173
2007-11-01	80.3728987968136
2007-12-01	80.8409112745880
2008-01-01	79.2210862462160
2008-02-01	80.1636164390956
2008-03-01	80.5893070682866
2008-04-01	80.3157379380560
2008-05-01	80.3152805452348
2008-06-01	80.5248251545818
2008-07-01	80.3048459942894
2008-08-01	80.1012178734310
2008-09-01	80.6933646098589
2008-10-01	80.5062238599857
2008-11-01	80.3213915658091
2008-12-01	80.6734591546074
2009-01-01	78.8833123912746
2009-02-01	79.3685223490835
2009-03-01	79.1815623187669
2009-04-01	79.3688307846252
2009-05-01	79.4233230533606
2009-06-01	79.0400419681075
2009-07-01	79.1884955076529
2009-08-01	78.6734822242140
2009-09-01	79.5495455382468
2009-10-01	79.0047221048109
2009-11-01	78.8991277288936
2009-12-01	79.2240644680129
2010-01-01	78.2346466489877
2010-02-01	78.7454718994856
2010-03-01	79.0036456456365
2010-04-01	78.9053341953817
2010-05-01	79.1839551735114
2010-06-01	79.5293419773334
2010-07-01	79.4586001117928
2010-08-01	79.5797745020281
2010-09-01	80.4592007874853
2010-10-01	80.0032133896917
2010-11-01	79.9922250571264
2010-12-01	80.4518367513910
2011-01-01	78.9588378584716
2011-02-01	79.6631262191000
2011-03-01	80.1358859396224
2011-04-01	79.9890047702468
2011-05-01	79.9144666747669
2011-06-01	79.9698114510966
2011-07-01	79.9485119704141
2011-08-01	79.3103901787306
2011-09-01	80.1630392279869
2011-10-01	79.8353900127482
2011-11-01	79.8117339475535
2011-12-01	79.9275589669180
2012-01-01	78.4433927485086
2012-02-01	79.2515822776770
2012-03-01	79.7064541746664
2012-04-01	79.4499124380790
2012-05-01	79.7122332644569
2012-06-01	79.4519668007259
2012-07-01	79.6553223042128
2012-08-01	79.0902439692853
2012-09-01	80.0865242973066
2012-10-01	79.5117238780870
2012-11-01	79.4127063398931
2012-12-01	79.6245738955362
2013-01-01	78.4030124727642
2013-02-01	79.2674806269503
2013-03-01	79.3492208947281
2013-04-01	79.1889396860913
2013-05-01	79.1434462994618
2013-06-01	79.3775935607496
2013-07-01	79.1548400434013
2013-08-01	78.6947020088293
2013-09-01	79.6676547364424
2013-10-01	79.2618663881131
2013-11-01	79.0625243455446
2013-12-01	79.1404395050662
2014-01-01	77.6838634778580
2014-02-01	78.8614480675053
2014-03-01	79.0649055532746
2014-04-01	79.1036261677290
2014-05-01	79.0530223086341
2014-06-01	78.8586707830891
2014-07-01	78.6695007670356
2014-08-01	78.8359762021119
2014-09-01	78.6514278964356
2014-10-01	78.7657501187200
2014-11-01	78.7868874333938
2014-12-01	79.2157964970384
2015-01-01	77.7378072379034
2015-02-01	79.4429611371791
2015-03-01	79.3410153749829
2015-04-01	79.1887955826586
2015-05-01	79.7047808183057
2015-06-01	79.3499879376579
2015-07-01	79.2555326312010
2015-08-01	79.2648745616240
2015-09-01	79.2743619768404
2015-10-01	79.4919817943522
2015-11-01	79.7160781786343
2015-12-01	79.8816281213940
2016-01-01	78.4181966209074
2016-02-01	79.7548220882969
2016-03-01	79.5137970569163
2016-04-01	79.6200118006366
2016-05-01	79.7861971737890
2016-06-01	79.8545424059870
2016-07-01	79.9135051143280
2016-08-01	79.5075379033851
2016-09-01	79.7046315809060
2016-10-01	79.8387640090131
2016-11-01	80.1767823126494
2016-12-01	80.1102646129164
2017-01-01	78.1236104907408
2017-02-01	79.8277652812942
2017-03-01	79.8562090641133
2017-04-01	80.1718822118593
2017-05-01	80.3565281991624
2017-06-01	80.3570111628796
2017-07-01	80.2029140459287
2017-08-01	80.1383382139270
2017-09-01	80.4628254468433
2017-10-01	80.6847486531140
2017-11-01	81.1219659923283
2017-12-01	81.3725604314547
2018-01-01	79.6831671816361
2018-02-01	81.0563420435440
2018-03-01	80.9531940859584
2018-04-01	81.0382885430042
2018-05-01	80.9995181430314
2018-06-01	81.0724783433056
2018-07-01	80.8279533814308
2018-08-01	80.6774881973812
2018-09-01	80.9717334131301