Month	Percent
1986-01-01	74.0937630910414
1986-02-01	74.0089366291739
1986-03-01	73.9112175660399
1986-04-01	73.5771238022343
1986-05-01	73.4857223512005
1986-06-01	73.2367675570090
1986-07-01	73.1830418859596
1986-08-01	73.1904024018207
1986-09-01	73.1248549771831
1986-10-01	73.1332839483533
1986-11-01	73.0676398323457
1986-12-01	73.2431893000652
1987-01-01	73.2886331391204
1987-02-01	73.5198042462835
1987-03-01	73.6050434241692
1987-04-01	73.7821757584009
1987-05-01	73.7950126614876
1987-06-01	73.4274723391289
1987-07-01	73.0385086082958
1987-08-01	72.9704276204981
1987-09-01	73.0962964366316
1987-10-01	73.3973063256665
1987-11-01	73.5036038119693
1987-12-01	73.8280743831444
1988-01-01	74.0335675914689
1988-02-01	74.1807859195672
1988-03-01	74.4652224665164
1988-04-01	74.6420966420966
1988-05-01	74.9289260059569
1988-06-01	74.9626281777709
1988-07-01	74.9791636595598
1988-08-01	74.9386440331322
1988-09-01	74.9365449846177
1988-10-01	75.0000000000000
1988-11-01	75.0043353904279
1988-12-01	75.3419661611615
1989-01-01	75.7819251038688
1989-02-01	76.0824206286218
1989-03-01	76.1793871917472
1989-04-01	76.0868369045381
1989-05-01	75.7931839509281
1989-06-01	75.5537022015560
1989-07-01	75.5029790961431
1989-08-01	75.6322174121955
1989-09-01	75.7010578101307
1989-10-01	75.7733046760280
1989-11-01	75.8919225104792
1989-12-01	76.2453121253659
1990-01-01	76.4184241011849
1990-02-01	76.2669870956688
1990-03-01	75.8520962558179
1990-04-01	75.4417421627840
1990-05-01	75.4369160712884
1990-06-01	75.3152608418153
1990-07-01	75.1691685202365
1990-08-01	75.1505425782174
1990-09-01	75.0887451337806
1990-10-01	75.1220890521440
1990-11-01	75.3645240972420
1990-12-01	75.6655215164775
1991-01-01	76.0461738094500
1991-02-01	76.3735170437713
1991-03-01	76.2119827468224
1991-04-01	75.7328713835792
1991-05-01	75.3181395082728
1991-06-01	75.3592238129136
1991-07-01	75.4913165462734
1991-08-01	75.6009154721361
1991-09-01	75.5947109592126
1991-10-01	75.6161458708566
1991-11-01	75.6210002266901
1991-12-01	75.8723498713836
1992-01-01	76.0382241169147
1992-02-01	75.9071848038546
1992-03-01	75.6537936710780
1992-04-01	75.4148347905444
1992-05-01	75.2965079748932
1992-06-01	75.0714639877552
1992-07-01	75.1934480569098
1992-08-01	75.1332927885432
1992-09-01	75.3578409600501
1992-10-01	75.5202553610831
1992-11-01	76.0087268993840
1992-12-01	76.3926766085855
1993-01-01	76.8687697900786
1993-02-01	76.9240431411454
1993-03-01	77.0181252378047
1993-04-01	76.8022989286381
1993-05-01	76.8690083660374
1993-06-01	76.8361832946145
1993-07-01	77.1777202225781
1993-08-01	77.3126029610599
1993-09-01	77.4903381388149
1993-10-01	77.4498608911797
1993-11-01	77.7960923474262
1993-12-01	78.2152643683944
1994-01-01	78.4957221299962
1994-02-01	78.4516563268173
1994-03-01	77.9740822447306
1994-04-01	77.5913773233775
1994-05-01	77.1936359171987
1994-06-01	77.1378349570844
1994-07-01	77.0485953348644
1994-08-01	76.9692273908126
1994-09-01	77.2328391925494
1994-10-01	77.1360520890571
1994-11-01	77.4949514118514
1994-12-01	77.5370602665744
1995-01-01	77.9682386890695
1995-02-01	77.6785530904565
1995-03-01	77.4027753280474
1995-04-01	76.8560445479363
1995-05-01	76.4644409223376
1995-06-01	76.3047993252640
1995-07-01	76.2448153933368
1995-08-01	76.2967200998487
1995-09-01	76.0882647128185
1995-10-01	76.2499720886424
1995-11-01	76.1689431728125
1995-12-01	76.5305048591632
1996-01-01	76.5382128278705
1996-02-01	76.1731140184502
1996-03-01	75.5319877665983
1996-04-01	75.6613926915378
1996-05-01	75.5265277590858
1996-06-01	75.2554264327748
1996-07-01	74.7435481480591
1996-08-01	74.6057839025844
1996-09-01	74.7451429895102
1996-10-01	75.0958137086386
1996-11-01	75.4632902117187
1996-12-01	75.3114132844483
1997-01-01	75.3237212959176
1997-02-01	75.2430139077509
1997-03-01	75.2161337643800
1997-04-01	74.8948308991563
1997-05-01	74.4994847782572
1997-06-01	74.4110498500890
1997-07-01	74.4711843187894
1997-08-01	74.3931060781778
1997-09-01	74.2361310129042
1997-10-01	74.3009028575461
1997-11-01	74.6289633680848
1997-12-01	74.8310622601788
1998-01-01	74.7491172009659
1998-02-01	74.7914551665144
1998-03-01	74.7012277671444
1998-04-01	74.4841552611601
1998-05-01	74.4618050172098
1998-06-01	74.2749803159888
1998-07-01	74.5736987941338
1998-08-01	74.5953728814539
1998-09-01	74.6540329950459
1998-10-01	74.9374068783313
1998-11-01	75.1967621204891
1998-12-01	75.1419128784981
1999-01-01	74.7514838423929
1999-02-01	74.7969446916017
1999-03-01	74.8011074096046
1999-04-01	74.7666352984033
1999-05-01	74.4835890067075
1999-06-01	74.5505943888783
1999-07-01	74.4099641282331
1999-08-01	74.4567673420200
1999-09-01	74.4581982236007
1999-10-01	74.9486733901085
1999-11-01	74.8304023867350
1999-12-01	74.7597718955569
2000-01-01	74.1795377614383
2000-02-01	74.1865829304085
2000-03-01	74.0941968290840
2000-04-01	74.4120106282168
2000-05-01	74.0731537712670
2000-06-01	73.8521295652045
2000-07-01	73.6038275179484
2000-08-01	73.7508522989035
2000-09-01	73.8750372504222
2000-10-01	73.6580222945086
2000-11-01	73.6196319018405
2000-12-01	73.5790997838149
2001-01-01	73.2523734552906
2001-02-01	73.0350618760437
2001-03-01	73.0101948910914
2001-04-01	73.1398685214107
2001-05-01	73.4204461451494
2001-06-01	73.4459855228619
2001-07-01	73.5398861041669
2001-08-01	73.6883152438212
2001-09-01	73.6610917044706
2001-10-01	73.8335861827518
2001-11-01	73.5675153539702
2001-12-01	73.6051609580958
2002-01-01	73.2931063723434
2002-02-01	73.2605117462218
2002-03-01	73.2276756495262
2002-04-01	73.1950817576110
2002-05-01	72.9873970737381
2002-06-01	72.7067984681004
2002-07-01	72.5592301494183
2002-08-01	72.6989764607126
2002-09-01	72.8960483155716
2002-10-01	73.0415451126498
2002-11-01	73.0905822479930
2002-12-01	72.9847506005666
2003-01-01	73.0936365988211
2003-02-01	73.0931874578216
2003-03-01	73.0472681430198
2003-04-01	73.1848731170910
2003-05-01	73.2039943235638
2003-06-01	72.9957740136479
2003-07-01	72.7361547746271
2003-08-01	72.6843451041870
2003-09-01	72.5292696460760
2003-10-01	72.7686236189912
2003-11-01	72.8019000939399
2003-12-01	72.6707840045029
2004-01-01	72.4879763828231
2004-02-01	72.4041052789976
2004-03-01	72.4756052871545
2004-04-01	72.3239084687796
2004-05-01	72.3420644535160
2004-06-01	72.0285949940131
2004-07-01	72.2161087643321
2004-08-01	72.2129295022947
2004-09-01	72.6309173354992
2004-10-01	72.6952057853482
2004-11-01	73.0533057580046
2004-12-01	73.1091942822196
2005-01-01	72.7941349131005
2005-02-01	72.6749281518907
2005-03-01	72.5411818664203
2005-04-01	72.6532540664353
2005-05-01	72.5247166385704
2005-06-01	72.4902511036565
2005-07-01	72.4918884487529
2005-08-01	72.4794976318874
2005-09-01	72.4046522416250
2005-10-01	72.2196737220560
2005-11-01	72.0176620762046
2005-12-01	72.2168157850312
2006-01-01	72.3660353886264
2006-02-01	72.6507623460719
2006-03-01	72.1786171659427
2006-04-01	72.0368066825382
2006-05-01	71.5221396144483
2006-06-01	71.4226092964135
2006-07-01	71.1889720831386
2006-08-01	71.2920162633249
2006-09-01	71.4166894707779
2006-10-01	71.5019500831599
2006-11-01	71.2228287977091
2006-12-01	71.2982028844540
2007-01-01	71.5413127880004
2007-02-01	71.7664802878925
2007-03-01	71.7148536853921
2007-04-01	71.3618890763820
2007-05-01	71.1457539294759
2007-06-01	70.8959502639476
2007-07-01	70.9617630380600
2007-08-01	70.9676848373750
2007-09-01	71.0253159939886
2007-10-01	71.1358306301819
2007-11-01	71.6164756349200
2007-12-01	72.1649873815616
2008-01-01	72.3255236535228
2008-02-01	72.2711045552924
2008-03-01	71.9978656615923
2008-04-01	71.7922164291544
2008-05-01	71.8033404691324
2008-06-01	71.7897870244796
2008-07-01	71.6448197600498
2008-08-01	71.4408081439658
2008-09-01	71.5013830598706
2008-10-01	71.7023626395298
2008-11-01	71.6257088519265
2008-12-01	71.5398783613888
2009-01-01	71.5279991541046
2009-02-01	71.5125121949459
2009-03-01	71.5274854182331
2009-04-01	71.3290977134568
2009-05-01	71.3308433807981
2009-06-01	71.0718120769764
2009-07-01	70.9232546743152
2009-08-01	70.8607089996751
2009-09-01	70.6914866176011
2009-10-01	70.4599720403340
2009-11-01	70.2727178621925
2009-12-01	70.3699089870720
2010-01-01	70.6602401401477
2010-02-01	71.5216854452848
2010-03-01	71.4699454057270
2010-04-01	71.5996687559261
2010-05-01	71.7846635329273
2010-06-01	71.8659142752758
2010-07-01	71.9878497378739
2010-08-01	72.5793138511532
2010-09-01	72.3988682419515
2010-10-01	72.2872574417127
2010-11-01	72.4627665984773
2010-12-01	73.1253713606655
2011-01-01	73.4518243055101
2011-02-01	73.1953796613312
2011-03-01	72.9415032228396
2011-04-01	72.4189362888948
2011-05-01	72.7922030737184
2011-06-01	72.5746779214614
2011-07-01	72.8416592678493
2011-08-01	72.7681533580244
2011-09-01	72.2522511668115
2011-10-01	72.0173633672659
2011-11-01	72.0867106899722
2011-12-01	72.5346999273897
2012-01-01	72.8037397180229
2012-02-01	72.5100555449148
2012-03-01	72.3214447838797
2012-04-01	72.3722782287403
2012-05-01	71.9625248352330
2012-06-01	71.3537970350320
2012-07-01	71.0933835865943
2012-08-01	71.3997122823855
2012-09-01	71.6323743616510
2012-10-01	71.5977987579715
2012-11-01	71.8316159094381
2012-12-01	72.2361963048830
2013-01-01	72.2775465856375
2013-02-01	72.0844631677258
2013-03-01	72.2617433567218
2013-04-01	72.1464667829938
2013-05-01	71.7956082666920
2013-06-01	71.4604727080034
2013-07-01	71.4272657677355
2013-08-01	71.3694262676155
2013-09-01	71.4315696607071
2013-10-01	71.5209949170123
2013-11-01	71.9673357833176
2013-12-01	72.3810936856500
2014-01-01	72.4425630142424
2014-02-01	72.1781961602378
2014-03-01	71.9899650194074
2014-04-01	71.6588199866706
2014-05-01	71.5712745930521
2014-06-01	70.9915971075483
2014-07-01	70.9381118835797
2014-08-01	70.7763822467773
2014-09-01	70.8756272459091
2014-10-01	71.2985014889870
2014-11-01	71.7883007575317
2014-12-01	71.9980459412506
2015-01-01	71.8315967187238
2015-02-01	71.8550986857591
2015-03-01	71.6885237435564
2015-04-01	71.6181046113450
2015-05-01	71.3435925083131
2015-06-01	71.2322345970952
2015-07-01	71.1684450515416
2015-08-01	71.4300020952755
2015-09-01	71.1864625780858
2015-10-01	71.3322022316676
2015-11-01	71.3025603008496
2015-12-01	71.9341249547458
2016-01-01	71.9601660592527
2016-02-01	71.6457583458154
2016-03-01	71.7150373114056
2016-04-01	71.4118631142982
2016-05-01	71.2211866140047
2016-06-01	71.0708310541696
2016-07-01	71.0635913058535
2016-08-01	71.1718130280118
2016-09-01	71.0209222166515
2016-10-01	71.1901289417317
2016-11-01	71.0293412879567
2016-12-01	71.3862296365015
2017-01-01	71.2402283766536
2017-02-01	71.5988553865713
2017-03-01	71.3024875807953
2017-04-01	71.4267142931078
2017-05-01	71.2570963033466
2017-06-01	71.0057729650044
2017-07-01	70.7384627614121
2017-08-01	70.9343754926776
2017-09-01	70.8432766336234
2017-10-01	71.1432255504212
2017-11-01	71.1178583653726
2017-12-01	71.4559591082047
2018-01-01	71.3236782240506
2018-02-01	70.9543665599884
2018-03-01	70.7443630149411
2018-04-01	70.8883411595158
2018-05-01	70.9740041159728
2018-06-01	70.8316198454424
2018-07-01	70.5347236992705
2018-08-01	70.1856074690695