Month	Percent
1968-01-01	81.7673048600884
1968-02-01	81.4651368049426
1968-03-01	83.1325301204819
1968-04-01	84.2383328441444
1968-05-01	84.7552037525652
1968-06-01	85.0615114235501
1968-07-01	84.9371161158234
1968-08-01	84.5165059888986
1968-09-01	84.3257443082312
1968-10-01	84.7857767414748
1968-11-01	84.1048034934498
1968-12-01	83.0858806404658
1969-01-01	81.9424251235824
1969-02-01	81.5514235909355
1969-03-01	83.1447635625181
1969-04-01	84.3097447795824
1969-05-01	84.6220677671590
1969-06-01	84.7467438494935
1969-07-01	84.7065625903440
1969-08-01	84.3488304937915
1969-09-01	84.2848904267589
1969-10-01	84.1589861751152
1969-11-01	83.8468183126980
1969-12-01	83.3525014376078
1970-01-01	82.3039356506751
1970-02-01	81.9121447028424
1970-03-01	83.7535816618911
1970-04-01	84.5405095906098
1970-05-01	84.5867886760080
1970-06-01	84.5955987424979
1970-07-01	84.6571428571429
1970-08-01	84.2796005706134
1970-09-01	84.0831435079727
1970-10-01	83.8168373151308
1970-11-01	83.8306337027564
1970-12-01	83.6606888699118
1971-01-01	83.0489192263936
1971-02-01	83.0869812393405
1971-03-01	84.3883054215158
1971-04-01	85.2040816326531
1971-05-01	85.5121675155631
1971-06-01	85.0240180842046
1971-07-01	84.9435028248588
1971-08-01	84.4569816643159
1971-09-01	84.3573844419391
1971-10-01	84.2668167745567
1971-11-01	84.1912798874824
1971-12-01	83.9853644807205
1972-01-01	82.9254571026723
1972-02-01	83.0894766460326
1972-03-01	83.8301462317210
1972-04-01	84.9353569421023
1972-05-01	85.1010101010101
1972-06-01	85.0658447744466
1972-07-01	85.2376980817348
1972-08-01	84.7071884540661
1972-09-01	84.5214979195562
1972-10-01	84.5598444876423
1972-11-01	83.8512763596004
1972-12-01	83.8745489869553
1973-01-01	83.2963988919668
1973-02-01	83.3887043189369
1973-03-01	83.9137645107794
1973-04-01	84.8576954959934
1973-05-01	85.3046594982079
1973-06-01	85.2535832414554
1973-07-01	85.6158721410857
1973-08-01	85.2188274153592
1973-09-01	84.7909790979098
1973-10-01	85.1291918636614
1973-11-01	84.6597145993414
1973-12-01	84.1383095499451
1974-01-01	83.2420591456736
1974-02-01	83.1875341716785
1974-03-01	84.5859524460235
1974-04-01	85.0860420650096
1974-05-01	85.1690294438386
1974-06-01	85.1811495505312
1974-07-01	84.9046321525886
1974-08-01	84.5568243610658
1974-09-01	84.5127925966249
1974-10-01	84.6028291621328
1974-11-01	84.4522968197880
1974-12-01	83.7228260869565
1975-01-01	82.5155868799132
1975-02-01	82.3401950162514
1975-03-01	83.2611050920910
1975-04-01	83.9015151515152
1975-05-01	84.3370240345666
1975-06-01	83.8005390835580
1975-07-01	84.1466702615260
1975-08-01	83.9343379978472
1975-09-01	83.8978494623656
1975-10-01	84.0225563909774
1975-11-01	84.1031149301826
1975-12-01	83.9280922994366
1976-01-01	82.5167336010709
1976-02-01	82.6191751472951
1976-03-01	83.2396251673360
1976-04-01	83.6276083467095
1976-05-01	83.7650200267023
1976-06-01	83.9200000000000
1976-07-01	84.0277777777778
1976-08-01	83.8666666666667
1976-09-01	83.6658685820697
1976-10-01	83.5018626929218
1976-11-01	83.6392657621708
1976-12-01	83.3643369651874
1977-01-01	82.0859872611465
1977-02-01	82.0185922974768
1977-03-01	83.0679405520170
1977-04-01	83.4129511677282
1977-05-01	83.3818470494840
1977-06-01	83.5185185185185
1977-07-01	83.6642838231401
1977-08-01	83.3553500660502
1977-09-01	83.2498021630177
1977-10-01	83.0477194832586
1977-11-01	83.3157617290459
1977-12-01	82.9467580390090
1978-01-01	81.7893903404592
1978-02-01	81.9308889475072
1978-03-01	82.7004219409283
1978-04-01	83.5266209804955
1978-05-01	83.8590956887487
1978-06-01	83.6573830793484
1978-07-01	83.4691195795006
1978-08-01	82.8346456692913
1978-09-01	82.6862539349423
1978-10-01	82.7351323028556
1978-11-01	82.8750981932443
1978-12-01	82.6041393764737
1979-01-01	81.7159298979859
1979-02-01	81.7944023018572
1979-03-01	82.3452598589710
1979-04-01	83.2549634273772
1979-05-01	83.8768588572919
1979-06-01	84.2064112587959
1979-07-01	84.1460234680574
1979-08-01	83.4592341755666
1979-09-01	82.8824141519251
1979-10-01	83.2293291731669
1979-11-01	83.0737279335410
1979-12-01	82.9223981313262
1980-01-01	82.1271076523995
1980-02-01	81.7380025940337
1980-03-01	82.5602487691112
1980-04-01	83.2600258732212
1980-05-01	83.3462432223083
1980-06-01	83.7977296181630
1980-07-01	83.6344863190501
1980-08-01	83.1399845320959
1980-09-01	83.0931549150798
1980-10-01	83.1235550988954
1980-11-01	82.7896223991780
1980-12-01	82.6779748136726
1981-01-01	82.1190354027706
1981-02-01	82.1006676938880
1981-03-01	82.8930494998718
1981-04-01	83.2991277578245
1981-05-01	83.2436587240584
1981-06-01	83.7387964148528
1981-07-01	83.4827144686300
1981-08-01	83.2395087001024
1981-09-01	82.6687116564417
1981-10-01	82.5498211548288
1981-11-01	82.6564495530013
1981-12-01	82.1109123434705
1982-01-01	81.5258994641490
1982-02-01	81.8158633001785
1982-03-01	82.6751592356688
1982-04-01	83.6178343949044
1982-05-01	83.4773767158109
1982-06-01	83.0456852791878
1982-07-01	83.0667682152831
1982-08-01	82.9280648429585
1982-09-01	82.6163967611336
1982-10-01	82.5240263024785
1982-11-01	82.7394490775840
1982-12-01	82.5922182920667
1983-01-01	81.8663303909206
1983-02-01	81.5729770607512
1983-03-01	81.9465456379224
1983-04-01	82.7455919395466
1983-05-01	83.3123584193305
1983-06-01	83.4505273731793
1983-07-01	83.2496233048719
1983-08-01	82.6609872212478
1983-09-01	82.4074074074074
1983-10-01	82.3867900925694
1983-11-01	82.3794051487128
1983-12-01	82.1044738815296
1984-01-01	81.4389208093930
1984-02-01	81.3483146067416
1984-03-01	81.5618762475050
1984-04-01	82.3412204234122
1984-05-01	82.6119402985075
1984-06-01	82.6875310481868
1984-07-01	82.4639841033284
1984-08-01	82.3004462072385
1984-09-01	82.2073744122742
1984-10-01	82.0474777448071
1984-11-01	82.1013597033374
1984-12-01	81.8001978239367
1985-01-01	81.1944718657453
1985-02-01	80.6809770540341
1985-03-01	81.1250925240562
1985-04-01	82.1833415475604
1985-05-01	82.2921790457452
1985-06-01	82.1648216482165
1985-07-01	82.1779744346116
1985-08-01	81.8070218512153
1985-09-01	81.5866797257591
1985-10-01	81.4289209689259
1985-11-01	81.3248594475678
1985-12-01	80.9535452322738
1986-01-01	80.6057645334636
1986-02-01	80.3074670571010
1986-03-01	80.7748538011696
1986-04-01	81.6520467836257
1986-05-01	81.7938094077504
1986-06-01	81.6654492330168
1986-07-01	81.7342725285402
1986-08-01	81.8027622970681
1986-09-01	81.3542926239420
1986-10-01	81.1941020062848
1986-11-01	81.0053165780570
1986-12-01	80.5656272661349
1987-01-01	79.8116397005554
1987-02-01	79.6716562047320
1987-03-01	80.3902674054445
1987-04-01	81.0544053923929
1987-05-01	81.0108303249098
1987-06-01	81.1538461538462
1987-07-01	81.4494840412767
1987-08-01	81.4761562425114
1987-09-01	81.0493531384763
1987-10-01	80.9523809523810
1987-11-01	80.8454740864581
1987-12-01	80.5111058036780
1988-01-01	79.7474386466524
1988-02-01	79.5806528472719
1988-03-01	80.2336671435384
1988-04-01	81.2039019747799
1988-05-01	81.3865147198480
1988-06-01	81.6821097647897
1988-07-01	81.4234875444840
1988-08-01	81.3462905901872
1988-09-01	80.9084457061746
1988-10-01	80.8173871958422
1988-11-01	81.0377358490566
1988-12-01	80.8781869688385
1989-01-01	79.9386358272362
1989-02-01	80.0377536573856
1989-03-01	80.5752003771806
1989-04-01	81.3339618194674
1989-05-01	81.5102328863797
1989-06-01	81.8416725393470
1989-07-01	81.8480300187617
1989-08-01	81.3730084348641
1989-09-01	80.9824561403509
1989-10-01	81.1316343231237
1989-11-01	81.2631578947368
1989-12-01	81.1506080449018
1990-01-01	80.2336448598131
1990-02-01	80.4302080897826
1990-03-01	80.8555399719495
1990-04-01	81.5949485500468
1990-05-01	82.2227399813607
1990-06-01	82.0363466915191
1990-07-01	82.1295433364399
1990-08-01	81.5219920875029
1990-09-01	81.6724738675958
1990-10-01	82.1221267703738
1990-11-01	81.8350754936121
1990-12-01	81.5942365791308
1991-01-01	80.8174640037157
1991-02-01	80.8040901696491
1991-03-01	81.6747854326142
1991-04-01	82.1469974495711
1991-05-01	82.4727946283862
1991-06-01	82.6891923165934
1991-07-01	82.3502197547999
1991-08-01	82.0240295748614
1991-09-01	82.2796492847254
1991-10-01	82.3909531502423
1991-11-01	82.3284823284824
1991-12-01	82.1188989127920
1992-01-01	81.6057380842203
1992-02-01	81.7572254335260
1992-03-01	82.0892073029813
1992-04-01	82.8088847755669
1992-05-01	82.6408125577101
1992-06-01	82.3610790869264
1992-07-01	82.8222273460918
1992-08-01	82.4884792626728
1992-09-01	82.2472944968916
1992-10-01	82.5546605293441
1992-11-01	82.6586936522539
1992-12-01	82.5276243093923
1993-01-01	81.5880322209436
1993-02-01	81.6570771001151
1993-03-01	81.9687212511500
1993-04-01	82.5776754890679
1993-05-01	82.7166168696851
1993-06-01	82.8125000000000
1993-07-01	82.9313117390306
1993-08-01	82.5528007346189
1993-09-01	82.4271621931636
1993-10-01	82.6216712580349
1993-11-01	82.4690224873795
1993-12-01	82.2206928194540
1994-01-01	81.2385321100917
1994-02-01	81.1710677382319
1994-03-01	81.4466130884041
1994-04-01	82.0501034245001
1994-05-01	82.6486114298830
1994-06-01	82.4690224873795
1994-07-01	82.5378614043139
1994-08-01	82.4082568807339
1994-09-01	82.1035747021082
1994-10-01	82.0077928031171
1994-11-01	82.0495185694636
1994-12-01	81.8848887869755
1995-01-01	80.9534723813890
1995-02-01	80.8124856552674
1995-03-01	81.3302752293578
1995-04-01	81.9664599127039
1995-05-01	82.1518696948842
1995-06-01	82.3475469967905
1995-07-01	82.6067003212483
1995-08-01	82.3313446535108
1995-09-01	82.2599129039652
1995-10-01	82.3286729314692
1995-11-01	81.9431714023831
1995-12-01	81.7473056638386
1996-01-01	81.1783585511234
1996-02-01	81.1394440615667
1996-03-01	81.4712643678161
1996-04-01	82.2298850574713
1996-05-01	82.2354831305944
1996-06-01	82.5608077099587
1996-07-01	82.9083390764990
1996-08-01	82.7285254937988
1996-09-01	82.4879504246041
1996-10-01	82.3772372648004
1996-11-01	82.3461891643710
1996-12-01	82.4948311509304
1997-01-01	82.0389461626575
1997-02-01	81.7931667048842
1997-03-01	82.3016964695094
1997-04-01	82.8781271517099
1997-05-01	83.1308732523493
1997-06-01	83.1882730187815
1997-07-01	83.0811554332875
1997-08-01	82.6565726083964
1997-09-01	82.3138602520046
1997-10-01	82.3327222731439
1997-11-01	82.1412196240257
1997-12-01	82.3124569855471
1998-01-01	81.5741165672327
1998-02-01	81.2672176308540
1998-03-01	81.4993122420908
1998-04-01	81.7638952687184
1998-05-01	82.0477502295684
1998-06-01	82.3502409915079
1998-07-01	82.2206928194540
1998-08-01	81.6930488644184
1998-09-01	81.5783436568020
1998-10-01	81.7994032591232
1998-11-01	81.5783436568020
1998-12-01	81.5946691176471
1999-01-01	81.1481056257176
1999-02-01	80.6852149919522
1999-03-01	80.6444188722670
1999-04-01	80.9534776600645
1999-05-01	81.2011044638748
1999-06-01	81.3348676639816
1999-07-01	81.2658227848101
1999-08-01	81.3937442502300
1999-09-01	81.5359852839733
1999-10-01	81.4857405703772
1999-11-01	81.2830535755346
1999-12-01	81.2097516099356
2000-01-01	80.5983889528193
2000-02-01	80.1611047180667
2000-03-01	80.3271135683022
2000-04-01	80.9040590405904
2000-05-01	81.5352697095436
2000-06-01	81.3234955038045
2000-07-01	81.1764705882353
2000-08-01	81.4216478190630
2000-09-01	81.3465529167627
2000-10-01	81.3883763837638
2000-11-01	81.4302191464821
2000-12-01	81.2226066897347
2001-01-01	80.4618937644342
2001-02-01	80.3331790837575
2001-03-01	80.5131761442441
2001-04-01	80.9259259259259
2001-05-01	81.1098265895954
2001-06-01	80.8003701133472
2001-07-01	80.8840546169868
2001-08-01	81.0923397361722
2001-09-01	80.3286276324925
2001-10-01	80.2035152636448
2001-11-01	80.0878815911194
2001-12-01	79.8750867453158
2002-01-01	79.6060254924681
2002-02-01	79.4425087108014
2002-03-01	79.7815477573786
2002-04-01	80.1396973224680
2002-05-01	80.0465116279070
2002-06-01	80.0557880055788
2002-07-01	80.2931596091205
2002-08-01	80.4049336746568
2002-09-01	79.8651476400837
2002-10-01	80.0465116279070
2002-11-01	79.8648333721743
2002-12-01	79.8646756882874
2003-01-01	79.5656235404017
2003-02-01	79.4062646096307
2003-03-01	79.2998833138856
2003-04-01	79.7287818564414
2003-05-01	79.9579537491240
2003-06-01	79.9580027998134
2003-07-01	80.1961700140122
2003-08-01	80.3926150969853
2003-09-01	80.0140088722858
2003-10-01	80.1214669469750
2003-11-01	80.3316982013548
2003-12-01	80.4541198501873
2004-01-01	79.6209639681797
2004-02-01	79.2731535756155
2004-03-01	79.3442622950820
2004-04-01	80.0842499414931
2004-05-01	80.4403841649098
2004-06-01	80.1643192488263
2004-07-01	80.0750997418446
2004-08-01	80.5536007506451
2004-09-01	80.1875732708089
2004-10-01	80.3663691874119
2004-11-01	80.5118572434844
2004-12-01	80.4792107117689
2005-01-01	79.7929898847330
2005-02-01	79.3265834706852
2005-03-01	79.7972654408298
2005-04-01	80.3491389478651
2005-05-01	80.5555555555556
2005-06-01	80.7592548927140
2005-07-01	80.8636149126947
2005-08-01	80.9535048383290
2005-09-01	81.1601037491158
2005-10-01	80.9771064432381
2005-11-01	80.7937632884479
2005-12-01	80.7565011820331
2006-01-01	80.1230477993374
2006-02-01	80.2132701421801
2006-03-01	80.8374733853797
2006-04-01	81.3760379596679
2006-05-01	81.5833135814174
2006-06-01	81.4454976303318
2006-07-01	81.2618595825427
2006-08-01	81.3345998575160
2006-09-01	81.2959886066936
2006-10-01	81.2589073634204
2006-11-01	81.0881444523640
2006-12-01	81.1756306520704
2007-01-01	80.9296781883194
2007-02-01	81.1113761030289
2007-03-01	81.4231136580707
2007-04-01	82.2503583373148
2007-05-01	82.4021012416428
2007-06-01	82.3459149546106
2007-07-01	82.0788530465950
2007-08-01	82.0745697896750
2007-09-01	81.9899545563262
2007-10-01	81.8312216112838
2007-11-01	81.8377602297200
2007-12-01	81.7528735632184
2008-01-01	81.1406661873952
2008-02-01	81.1225713600384
2008-03-01	81.3115541676675
2008-04-01	81.9754866618601
2008-05-01	82.4405476819601
2008-06-01	82.0432692307692
2008-07-01	81.5295815295815
2008-08-01	82.0938628158845
2008-09-01	81.9735258724428
2008-10-01	81.9123314065511
2008-11-01	81.8072289156626
2008-12-01	81.2303980699638
2009-01-01	80.8741849794736
2009-02-01	80.4400386847196
2009-03-01	80.3290587950641
2009-04-01	80.5374001452433
2009-05-01	80.7263922518160
2009-06-01	80.3246910588805
2009-07-01	79.8545454545454
2009-08-01	80.2037845705968
2009-09-01	80.2328401649284
2009-10-01	80.3736050460941
2009-11-01	80.0194221898519
2009-12-01	79.9756986634265
2010-01-01	80.0389010454656
2010-02-01	79.6787539547335
2010-03-01	79.9561617145641
2010-04-01	80.3266699171136
2010-05-01	80.4384896467722
2010-06-01	80.4384896467722
2010-07-01	80.2144249512671
2010-08-01	80.4432537749635
2010-09-01	80.2436053593179
2010-10-01	80.2436053593179
2010-11-01	80.2096027297100
2010-12-01	80.2679658952497
2011-01-01	80.0194931773879
2011-02-01	80.1900584795322
2011-03-01	80.3632793323515
2011-04-01	80.9675834970530
2011-05-01	81.2868369351670
2011-06-01	81.2530712530712
2011-07-01	80.5698845492508
2011-08-01	80.7483998030527
2011-09-01	80.3715472989489
2011-10-01	80.3715472989489
2011-11-01	80.4698972099853
2011-12-01	80.3671970624235
2012-01-01	80.1764273462387
2012-02-01	79.8919715197643
2012-03-01	79.6018677807815
2012-04-01	80.0984009840098
2012-05-01	80.4535370963766
2012-06-01	80.9911242603550
2012-07-01	80.4540967423495
2012-08-01	80.4449938195303
2012-09-01	80.6036615536863
2012-10-01	80.9063893016345
2012-11-01	80.6891422905305
2012-12-01	80.1638530287984
2013-01-01	80.2736318407960
2013-02-01	80.0398704211313
2013-03-01	79.9351135512852
2013-04-01	80.7298175456136
2013-05-01	81.1047238190452
2013-06-01	81.4861145859394
2013-07-01	80.9714571857787
2013-08-01	81.0682046138415
2013-09-01	81.1183550651956
2013-10-01	80.9786700125471
2013-11-01	81.3316582914573
2013-12-01	81.1619718309859
2014-01-01	80.9979838709678
2014-02-01	81.1363636363636
2014-03-01	81.3859382903389
2014-04-01	81.7928589516333
2014-05-01	82.1980248164092
2014-06-01	81.9011406844106
2014-07-01	81.4767825425019
2014-08-01	81.8643637287275
2014-09-01	82.1138211382114
2014-10-01	81.7094886797253
2014-11-01	81.4409368635438
2014-12-01	81.7023445463812
2015-01-01	81.3680449208780
2015-02-01	81.5903860905139
2015-03-01	81.5971333503967
2015-04-01	81.9159836065574
2015-05-01	82.0348539210661
2015-06-01	81.9579702716556
2015-07-01	81.7389074121570
2015-08-01	81.9768934531451
2015-09-01	82.4178644763860
2015-10-01	82.3786283072181
2015-11-01	82.0565552699229
2015-12-01	82.1410190427174
2016-01-01	81.8134981968058
2016-02-01	82.0294345468629
2016-03-01	82.0764462809917
2016-04-01	82.5749741468459
2016-05-01	82.9369183040331
2016-06-01	82.8807861391259
2016-07-01	82.5873221216041
2016-08-01	82.7461139896373
2016-09-01	83.0741316744427
2016-10-01	83.1865284974093
2016-11-01	82.5816485225505
2016-12-01	82.7496757457847
2017-01-01	82.5421530479896
2017-02-01	82.3544698544699
2017-03-01	82.4492979719189
2017-04-01	82.8995314940135
2017-05-01	83.1902159771012
2017-06-01	83.3637073678730
2017-07-01	83.0729166666666
2017-08-01	83.0901511203752
2017-09-01	83.2768950247460
2017-10-01	83.4288692027098
2017-11-01	83.1029986962190
2017-12-01	83.2637075718016
2018-01-01	83.3812385680690
2018-02-01	83.2592205074549
2018-03-01	83.3507853403141
2018-04-01	83.7568771286350
2018-05-01	84.5690332722033
2018-06-01	84.4019890081130
2018-07-01	83.8312368972746
2018-08-01	84.0020980854970
2018-09-01	84.1153342070773