Month	Percent
1978-02-01	47.0321657452372
1978-03-01	48.4164525387393
1978-04-01	48.8880674314972
1978-05-01	48.7201010992647
1978-06-01	48.5447206798063
1978-07-01	49.0022433559305
1978-08-01	49.1375987262221
1978-09-01	49.2854398655508
1978-10-01	49.4483043174760
1978-11-01	49.4278398840700
1978-12-01	49.5489076224251
1979-01-01	46.2104132302539
1979-02-01	47.9712689770170
1979-03-01	49.1580538871545
1979-04-01	49.0272664587250
1979-05-01	48.6780964111059
1979-06-01	49.0415729398621
1979-07-01	49.1947456086675
1979-08-01	48.8232774129231
1979-09-01	49.6260315350513
1979-10-01	50.4870356485887
1979-11-01	50.5662306960022
1979-12-01	49.9915938930155
1980-01-01	47.3389245818940
1980-02-01	49.4732486612549
1980-03-01	50.9564210667937
1980-04-01	50.0542386610637
1980-05-01	50.1995762034284
1980-06-01	50.4192232894963
1980-07-01	51.0173677166634
1980-08-01	50.7999720786873
1980-09-01	51.0684190510959
1980-10-01	50.6281699084436
1980-11-01	51.0720349541182
1980-12-01	50.5154646277024
1981-01-01	47.6507527353406
1981-02-01	49.6887889134090
1981-03-01	51.0854524512307
1981-04-01	51.2588312397040
1981-05-01	50.9971129818106
1981-06-01	51.0836527927625
1981-07-01	51.2567381090650
1981-08-01	50.9074678644522
1981-09-01	52.2996727971012
1981-10-01	52.0117460176178
1981-11-01	51.9104300969154
1981-12-01	51.2429310731918
1982-01-01	48.6207876367720
1982-02-01	50.1660527957137
1982-03-01	51.6557194683427
1982-04-01	50.7419860137638
1982-05-01	50.8641538868948
1982-06-01	50.8605840704155
1982-07-01	51.2162506101103
1982-08-01	51.1192447697007
1982-09-01	51.5040976834816
1982-10-01	51.1351819145096
1982-11-01	51.1905713385542
1982-12-01	50.5302123303675
1983-01-01	47.2843020144230
1983-02-01	49.3678017744102
1983-03-01	50.5992101588235
1983-04-01	49.4486989393800
1983-05-01	49.7748803861532
1983-06-01	49.5324628648465
1983-07-01	49.9214114914165
1983-08-01	49.5179121706668
1983-09-01	50.4426134234376
1983-10-01	50.0498784489239
1983-11-01	50.8540241875307
1983-12-01	50.5086326861498
1984-01-01	47.4225527091815
1984-02-01	49.4085967995157
1984-03-01	51.3659422788973
1984-04-01	51.2148962196948
1984-05-01	51.3512229264909
1984-06-01	51.7444931844519
1984-07-01	51.8254501042232
1984-08-01	51.7141396115576
1984-09-01	52.9786378093347
1984-10-01	52.7221258663326
1984-11-01	53.1838019433486
1984-12-01	53.0671660562699
1985-01-01	49.6555466621780
1985-02-01	52.4535774772257
1985-03-01	53.7952293972511
1985-04-01	52.5106946454653
1985-05-01	53.3850350481459
1985-06-01	53.4969264109586
1985-07-01	53.9704055381392
1985-08-01	53.7136399926325
1985-09-01	54.4051728360809
1985-10-01	54.2866891617814
1985-11-01	55.8215203069746
1985-12-01	55.5449767904726
1986-01-01	52.4310685683746
1986-02-01	54.6582073030001
1986-03-01	56.1538744055150
1986-04-01	56.7771633133392
1986-05-01	56.9303968304277
1986-06-01	56.9785257131627
1986-07-01	57.5377879557400
1986-08-01	56.5076240017528
1986-09-01	57.4541336855456
1986-10-01	57.7555433176766
1986-11-01	57.8475883812234
1986-12-01	57.5436397133600
1987-01-01	54.0106762455440
1987-02-01	56.3996746184484
1987-03-01	57.8060222216376
1987-04-01	57.5981682232786
1987-05-01	57.7098460534379
1987-06-01	57.9765462669472
1987-07-01	57.8583640975361
1987-08-01	57.7632241013522
1987-09-01	58.6162683472775
1987-10-01	58.1982512394740
1987-11-01	58.5228687838826
1987-12-01	58.8021011846597
1988-01-01	56.1758611546779
1988-02-01	57.9147330487381
1988-03-01	59.7928078224738
1988-04-01	59.5131337973190
1988-05-01	59.4656929443739
1988-06-01	59.6856626531004
1988-07-01	59.3720082829886
1988-08-01	59.7063140867292
1988-09-01	60.9911842110798
1988-10-01	60.2450752839533
1988-11-01	60.7168762101884
1988-12-01	60.7470003585183
1989-01-01	57.5940147861865
1989-02-01	59.6712401847536
1989-03-01	61.2330905674103
1989-04-01	61.5159892785023
1989-05-01	62.0636552741554
1989-06-01	61.9768675205231
1989-07-01	62.0106965608777
1989-08-01	62.2795693846031
1989-09-01	63.5402770621834
1989-10-01	62.5812347599916
1989-11-01	63.8370203026075
1989-12-01	63.7126202918558
1990-01-01	60.1977306593506
1990-02-01	62.5735163487980
1990-03-01	64.0194586107496
1990-04-01	63.7782346476735
1990-05-01	64.0297208026520
1990-06-01	63.8085034124596
1990-07-01	63.3685967293337
1990-08-01	62.9480571334048
1990-09-01	63.7447969243673
1990-10-01	63.0823926119431
1990-11-01	63.4212135962968
1990-12-01	63.2434481103902
1991-01-01	60.0824683758153
1991-02-01	61.9476560220159
1991-03-01	62.8156222520612
1991-04-01	62.9466613859420
1991-05-01	63.1518214814217
1991-06-01	62.9843670627495
1991-07-01	61.9877097034908
1991-08-01	62.8366059405668
1991-09-01	63.2683431923413
1991-10-01	62.0253688941539
1991-11-01	62.2244004078787
1991-12-01	62.0635175397416
1992-01-01	59.8130621347450
1992-02-01	61.6128081452258
1992-03-01	62.6231363168232
1992-04-01	62.0703510385240
1992-05-01	62.3068478542680
1992-06-01	62.5087298099065
1992-07-01	62.2030484497955
1992-08-01	62.4910984672324
1992-09-01	62.9711269702965
1992-10-01	62.3506698790008
1992-11-01	62.3608376853361
1992-12-01	61.9730763964601
1993-01-01	59.5308201320101
1993-02-01	60.6317505839626
1993-03-01	62.0789544975144
1993-04-01	61.2890253380047
1993-05-01	61.8919454413473
1993-06-01	61.8978003862919
1993-07-01	61.4307754910575
1993-08-01	61.7162727290167
1993-09-01	62.8116930938344
1993-10-01	62.6319515497604
1993-11-01	62.8284822149511
1993-12-01	62.7158089157898
1994-01-01	59.9646987309668
1994-02-01	61.6846195378559
1994-03-01	62.7564188630136
1994-04-01	62.1597197680981
1994-05-01	62.7463670505864
1994-06-01	62.8197152700162
1994-07-01	63.1139394585393
1994-08-01	62.7334140928926
1994-09-01	64.6373631957432
1994-10-01	63.3264956065602
1994-11-01	63.5853778469530
1994-12-01	63.7676669606638
1995-01-01	61.4279575206904
1995-02-01	63.0331545955881
1995-03-01	64.0547023370958
1995-04-01	64.4024229067471
1995-05-01	65.0272592435091
1995-06-01	65.3571442627244
1995-07-01	65.4075488546742
1995-08-01	65.0571683187681
1995-09-01	65.8035580467580
1995-10-01	65.2675232920091
1995-11-01	65.9585001689869
1995-12-01	65.8850362443731
1996-01-01	62.9034346028609
1996-02-01	64.4165042733259
1996-03-01	65.2257770515088
1996-04-01	64.0659568993539
1996-05-01	64.6259189303528
1996-06-01	64.6012741263332
1996-07-01	64.6301518278823
1996-08-01	64.4617261348720
1996-09-01	65.4026091834322
1996-10-01	64.6237697588971
1996-11-01	64.9139727286809
1996-12-01	65.1004504055952
1997-01-01	62.6131959834271
1997-02-01	64.5274064878089
1997-03-01	64.6944087594077
1997-04-01	64.8131182036678
1997-05-01	64.7628252148186
1997-06-01	64.9890699287412
1997-07-01	65.1496181337778
1997-08-01	64.2762290515508
1997-09-01	66.2257781434049
1997-10-01	65.2317878257669
1997-11-01	65.6059209936461
1997-12-01	65.3793277342340
1998-01-01	62.6775765591517
1998-02-01	64.3551103529553
1998-03-01	65.1201364951978
1998-04-01	65.2708272549952
1998-05-01	65.1902863148337
1998-06-01	65.6499107208232
1998-07-01	65.6206838898736
1998-08-01	65.5356392002077
1998-09-01	66.4680319761728
1998-10-01	66.0622191375355
1998-11-01	65.5455644168012
1998-12-01	66.0733362035153
1999-01-01	63.3019765326700
1999-02-01	64.7879976082151
1999-03-01	65.3159159849206
1999-04-01	65.2837379704200
1999-05-01	65.5554167963916
1999-06-01	65.9322547054596
1999-07-01	65.9864631823902
1999-08-01	65.4769303019460
1999-09-01	66.7787230025068
1999-10-01	66.2958523462426
1999-11-01	66.6375748913482
1999-12-01	67.0005779391903
2000-01-01	63.9818083020594
2000-02-01	65.5244446664652
2000-03-01	66.3935455197639
2000-04-01	66.8229309346258
2000-05-01	66.6720188074872
2000-06-01	67.5717484604981
2000-07-01	68.0633259899046
2000-08-01	67.7691036596289
2000-09-01	68.8022384790285
2000-10-01	67.5649702225731
2000-11-01	67.1176271842790
2000-12-01	67.6862589473190
2001-01-01	65.3390674677610
2001-02-01	66.7464601344838
2001-03-01	67.4077402513162
2001-04-01	67.9780290086769
2001-05-01	67.6727385898580
2001-06-01	67.8641602058651
2001-07-01	67.8184538087696
2001-08-01	67.5483576825579
2001-09-01	68.2970225157036
2001-10-01	67.4627326094201
2001-11-01	67.6211363475870
2001-12-01	67.4725203603207
2002-01-01	65.9526048069747
2002-02-01	66.9488971166573
2002-03-01	67.6991661643891
2002-04-01	67.4274188714812
2002-05-01	67.4291575589150
2002-06-01	68.0617230351323
2002-07-01	68.0346370803995
2002-08-01	68.2255965002066
2002-09-01	69.2644353828588
2002-10-01	68.3938210851337
2002-11-01	69.0806019315223
2002-12-01	69.2347099205765
2003-01-01	67.7725874314465
2003-02-01	69.0408601838551
2003-03-01	68.9599949295006
2003-04-01	69.2648079178011
2003-05-01	69.3925905183355
2003-06-01	69.2588747223926
2003-07-01	68.6263178092955
2003-08-01	68.7820997265760
2003-09-01	69.8831655708487
2003-10-01	68.9743419154477
2003-11-01	68.8116114757148
2003-12-01	68.7334807654136
2004-01-01	66.8427668731972
2004-02-01	67.5638021623220
2004-03-01	68.4311276381573
2004-04-01	68.3467019216633
2004-05-01	68.7299846347372
2004-06-01	68.6481888135934
2004-07-01	68.5558270061188
2004-08-01	68.7111037576463
2004-09-01	69.6847310363371
2004-10-01	69.5995381718316
2004-11-01	69.6816920081770
2004-12-01	69.8846841979868
2005-01-01	68.3395458039462
2005-02-01	69.6730611922771
2005-03-01	70.6055836470450
2005-04-01	70.5285914828362
2005-05-01	70.8248156813769
2005-06-01	71.0097757268432
2005-07-01	70.7285901511729
2005-08-01	70.8601495336331
2005-09-01	71.7582942456363
2005-10-01	71.1066523685226
2005-11-01	71.0407751599362
2005-12-01	71.2500926717566
2006-01-01	69.1088971304404
2006-02-01	70.0837918619644
2006-03-01	70.8904945967993
2006-04-01	70.7535733732004
2006-05-01	71.6364937408278
2006-06-01	71.5315054599880
2006-07-01	71.4367405105059
2006-08-01	71.2982860635557
2006-09-01	72.7347324797048
2006-10-01	71.4972515198346
2006-11-01	71.8675387570202
2006-12-01	72.1701521515266
2007-01-01	69.9875400502441
2007-02-01	71.0315045310834
2007-03-01	71.7131600252254
2007-04-01	71.3244241265387
2007-05-01	71.6885423596554
2007-06-01	71.8640172026791
2007-07-01	71.8083857387969
2007-08-01	71.7994684926680
2007-09-01	73.1452731447237
2007-10-01	72.4681216153868
2007-11-01	72.5488731073975
2007-12-01	72.9790636097844
2008-01-01	70.5302127439600
2008-02-01	71.9760376284782
2008-03-01	72.6213236622688
2008-04-01	72.6083480374587
2008-05-01	72.5726297426447
2008-06-01	72.6342394044989
2008-07-01	72.4197745605303
2008-08-01	72.3874976831199
2008-09-01	72.8796421760841
2008-10-01	72.6107133759480
2008-11-01	72.6208358273426
2008-12-01	73.2971549442481
2009-01-01	71.3247953405726
2009-02-01	72.4192944734956
2009-03-01	72.4168503088096
2009-04-01	72.6173586013150
2009-05-01	72.7523952796239
2009-06-01	72.4854963242714
2009-07-01	72.2701736280369
2009-08-01	71.5915941752674
2009-09-01	72.4245647724766
2009-10-01	71.7061813505342
2009-11-01	71.4583460657197
2009-12-01	71.7318532581418
2010-01-01	70.2666246475599
2010-02-01	70.8866861547844
2010-03-01	71.3111650584987
2010-04-01	71.2062179925975
2010-05-01	71.6335182732886
2010-06-01	72.1156365731074
2010-07-01	72.0353902180994
2010-08-01	72.0420165282863
2010-09-01	73.0738010668442
2010-10-01	72.4745903428929
2010-11-01	72.4190055981118
2010-12-01	72.6325519934794
2011-01-01	70.8244674803466
2011-02-01	71.7050570260199
2011-03-01	72.4443853463318
2011-04-01	72.4200541430284
2011-05-01	72.4468885568200
2011-06-01	72.6323134159347
2011-07-01	72.5751883712469
2011-08-01	71.9217927334643
2011-09-01	73.0738091989056
2011-10-01	72.5598362119642
2011-11-01	72.6389225428992
2011-12-01	72.7230219987312
2012-01-01	70.6123552158537
2012-02-01	71.6664954771330
2012-03-01	72.5458163766540
2012-04-01	72.0940079668835
2012-05-01	72.5413067856159
2012-06-01	72.1892118292072
2012-07-01	72.4942654754196
2012-08-01	72.1704501439299
2012-09-01	73.5257241140335
2012-10-01	72.4076868056929
2012-11-01	72.5960044728874
2012-12-01	72.4276618772950
2013-01-01	70.9860584226224
2013-02-01	72.2328434103659
2013-03-01	72.4037442853810
2013-04-01	72.3010241326253
2013-05-01	72.0817006299348
2013-06-01	72.4995675855714
2013-07-01	72.1483816175302
2013-08-01	71.8384625586367
2013-09-01	73.0005826600564
2013-10-01	72.6584806678005
2013-11-01	72.3410320326704
2013-12-01	72.3921246343174
2014-01-01	70.5596464324106
2014-02-01	71.8120967870372
2014-03-01	72.3644649918595
2014-04-01	72.3162751377382
2014-05-01	72.2113832396076
2014-06-01	72.0478558638803
2014-07-01	71.8245874704785
2014-08-01	72.0688937627133
2014-09-01	71.9836122857585
2014-10-01	72.1132586829428
2014-11-01	71.9321759494342
2014-12-01	72.4579611690316
2015-01-01	70.5412616352344
2015-02-01	72.4953141876623
2015-03-01	72.3840630909720
2015-04-01	72.3434020729076
2015-05-01	72.9317402132907
2015-06-01	72.7290873582867
2015-07-01	72.3738761434496
2015-08-01	72.7202445597458
2015-09-01	72.7976672085106
2015-10-01	72.9215632587653
2015-11-01	73.2856638647100
2015-12-01	73.3449036516623
2016-01-01	71.2883209492472
2016-02-01	72.9797405001348
2016-03-01	72.9112396147557
2016-04-01	72.9094678303332
2016-05-01	73.2603697576886
2016-06-01	73.2913186048441
2016-07-01	73.3819825378192
2016-08-01	72.9223519897441
2016-09-01	73.3200065941351
2016-10-01	73.0819851580770
2016-11-01	73.7304953216715
2016-12-01	73.5826156408614
2017-01-01	71.2705717850806
2017-02-01	72.9538771776118
2017-03-01	73.3225870174658
2017-04-01	73.6531991150781
2017-05-01	74.0052215499554
2017-06-01	74.0460191964470
2017-07-01	74.0535803595325
2017-08-01	74.1155442176140
2017-09-01	74.3677779024073
2017-10-01	74.6326627714384
2017-11-01	75.3285087234165
2017-12-01	75.7267320236767
2018-01-01	73.6801355663432
2018-02-01	75.1569428504160
2018-03-01	75.1074146119042
2018-04-01	75.0781260142292
2018-05-01	75.1278633890859
2018-06-01	75.3536283302798
2018-07-01	74.9966024449425
2018-08-01	74.7349311131034
2018-09-01	75.0363954651486