Month	Percent
1968-01-01	73.4630163304515
1968-02-01	73.0345158197507
1968-03-01	74.3172017249641
1968-04-01	75.8661887694146
1968-05-01	76.8074445239800
1968-06-01	77.1394517282479
1968-07-01	76.5055939062128
1968-08-01	76.0446343779677
1968-09-01	76.3101731088452
1968-10-01	76.6027915779513
1968-11-01	76.1511216056671
1968-12-01	74.3275129778197
1969-01-01	72.9392369288742
1969-02-01	73.3772342427093
1969-03-01	74.4835680751174
1969-04-01	75.7852789498359
1969-05-01	76.4031805425632
1969-06-01	76.6822429906542
1969-07-01	76.0504201680672
1969-08-01	75.5121042830540
1969-09-01	76.2680316426245
1969-10-01	76.1672473867596
1969-11-01	75.5803156917363
1969-12-01	74.3797820542546
1970-01-01	73.1357109773043
1970-02-01	73.1543624161074
1970-03-01	74.4971098265896
1970-04-01	75.8604758604759
1970-05-01	76.4638082065468
1970-06-01	76.2782128051589
1970-07-01	75.9097190234915
1970-08-01	75.3219871205152
1970-09-01	75.8272058823529
1970-10-01	75.9182736455464
1970-11-01	74.9655805415328
1970-12-01	73.9549839228296
1971-01-01	73.0282823637618
1971-02-01	72.9593009887330
1971-03-01	74.6152079025959
1971-04-01	74.9885163068443
1971-05-01	75.2522935779816
1971-06-01	75.3261615930419
1971-07-01	75.2801280585410
1971-08-01	74.9885896850753
1971-09-01	74.6812386156649
1971-10-01	74.9829584185412
1971-11-01	75.0170183798502
1971-12-01	73.7188208616780
1972-01-01	72.8606909008806
1972-02-01	72.5763016157989
1972-03-01	73.3034714445689
1972-04-01	74.2231164766376
1972-05-01	75.0222816399287
1972-06-01	75.0888888888889
1972-07-01	74.9945018693644
1972-08-01	74.8958561718921
1972-09-01	75.0273343538159
1972-10-01	75.7575757575758
1972-11-01	74.8913043478261
1972-12-01	74.2124701281773
1973-01-01	73.6591695501730
1973-02-01	74.0349363812810
1973-03-01	74.4136001721541
1973-04-01	74.8121108009448
1973-05-01	75.3474449433398
1973-06-01	75.8907616812460
1973-07-01	75.6710694503622
1973-08-01	75.1114886387768
1973-09-01	75.2966101694915
1973-10-01	76.5278071473884
1973-11-01	75.7537423571579
1973-12-01	73.7473684210526
1974-01-01	73.1083630266192
1974-02-01	73.3235847085858
1974-03-01	73.9929033604675
1974-04-01	74.8646397334444
1974-05-01	75.2697095435685
1974-06-01	75.4451345755694
1974-07-01	74.7259565667011
1974-08-01	74.4536082474227
1974-09-01	74.4396463088628
1974-10-01	74.6817248459959
1974-11-01	74.4519565662774
1974-12-01	72.8983432194723
1975-01-01	71.6676872831190
1975-02-01	72.0276872964169
1975-03-01	72.8013029315961
1975-04-01	73.1925264012998
1975-05-01	74.4784281952603
1975-06-01	75.1010509296686
1975-07-01	74.6012517666061
1975-08-01	74.0330378726833
1975-09-01	74.2713567839196
1975-10-01	74.3178170144462
1975-11-01	74.0028061735819
1975-12-01	72.9800000000000
1976-01-01	71.8587953729557
1976-02-01	72.3539964121985
1976-03-01	72.9535949014141
1976-04-01	73.6528136806522
1976-05-01	74.3355811186037
1976-06-01	74.8266983561101
1976-07-01	74.7869177403370
1976-08-01	74.3873517786561
1976-09-01	74.5959795033504
1976-10-01	74.8422712933754
1976-11-01	74.3251231527094
1976-12-01	73.8249754178958
1977-01-01	72.9395604395604
1977-02-01	72.8341826734614
1977-03-01	73.5005880047040
1977-04-01	74.8531139835488
1977-05-01	75.3611870363139
1977-06-01	75.5121951219512
1977-07-01	75.3951219512195
1977-08-01	74.7663551401869
1977-09-01	75.1555209953344
1977-10-01	75.4951456310680
1977-11-01	75.0533876917104
1977-12-01	74.2574257425742
1978-01-01	73.3385153517295
1978-02-01	73.6065255389396
1978-03-01	74.0970873786408
1978-04-01	74.9466744231142
1978-05-01	76.0448916408669
1978-06-01	76.2852725164283
1978-07-01	75.6767208043310
1978-08-01	75.1206330824165
1978-09-01	75.4196411344781
1978-10-01	75.8913085372904
1978-11-01	75.5684007707129
1978-12-01	74.8699171323954
1979-01-01	74.4177093358999
1979-02-01	74.3214629451396
1979-03-01	74.4901885340516
1979-04-01	75.5914598961339
1979-05-01	76.3982317893523
1979-06-01	76.4446150892686
1979-07-01	76.3349980791395
1979-08-01	75.9309021113244
1979-09-01	76.0406675618646
1979-10-01	76.6104294478528
1979-11-01	76.1777096897740
1979-12-01	75.3831417624521
1980-01-01	74.7797778628878
1980-02-01	74.8707144225244
1980-03-01	74.9904177845918
1980-04-01	76.0283145207576
1980-05-01	76.4379896808714
1980-06-01	76.7526265520535
1980-07-01	76.3671128107074
1980-08-01	76.0168035134619
1980-09-01	76.3785537111238
1980-10-01	76.5490943755958
1980-11-01	76.1487130600572
1980-12-01	75.6302521008404
1981-01-01	74.9046529366896
1981-02-01	74.7854281899676
1981-03-01	75.3432494279176
1981-04-01	76.1922930179321
1981-05-01	76.5625000000000
1981-06-01	76.4380952380952
1981-07-01	76.3809523809524
1981-08-01	76.1270686703443
1981-09-01	76.2502376877733
1981-10-01	76.6831494864968
1981-11-01	76.6406695834126
1981-12-01	76.1768629693158
1982-01-01	75.5144817073171
1982-02-01	75.5568246716162
1982-03-01	76.0488176964149
1982-04-01	76.6768292682927
1982-05-01	77.0884871550904
1982-06-01	76.8865234746246
1982-07-01	76.4124025109378
1982-08-01	76.2727963525836
1982-09-01	76.7243017290519
1982-10-01	77.0473114193426
1982-11-01	76.8074581430746
1982-12-01	76.7853742144354
1983-01-01	76.0881961604258
1983-02-01	75.7938771629587
1983-03-01	76.3293310463122
1983-04-01	76.9948581222624
1983-05-01	77.5176089853417
1983-06-01	77.4819322936478
1983-07-01	77.4267224971450
1983-08-01	77.3807260977001
1983-09-01	77.5498575498576
1983-10-01	77.7587519025875
1983-11-01	77.3125237913970
1983-12-01	76.5714285714286
1984-01-01	75.9139375476009
1984-02-01	75.9428571428572
1984-03-01	76.5165967188096
1984-04-01	77.1722560975610
1984-05-01	77.6147837683368
1984-06-01	77.9238095238095
1984-07-01	77.6571428571429
1984-08-01	77.4543378995434
1984-09-01	77.9741543139491
1984-10-01	78.1749049429658
1984-11-01	77.8432864206923
1984-12-01	77.1194513240617
1985-01-01	76.6228821625738
1985-02-01	76.4179672630377
1985-03-01	76.6387195121951
1985-04-01	77.6824852296550
1985-05-01	77.9744907671806
1985-06-01	77.8815012383311
1985-07-01	77.8243474947609
1985-08-01	77.6972931757530
1985-09-01	78.1244055544988
1985-10-01	78.0905287181438
1985-11-01	77.6383342840844
1985-12-01	76.6419189034837
1986-01-01	76.5848086807539
1986-02-01	76.6742770167428
1986-03-01	76.9860925890646
1986-04-01	77.8222730739893
1986-05-01	78.0795715378730
1986-06-01	78.1536697247706
1986-07-01	78.0404117422798
1986-08-01	77.9386549819013
1986-09-01	78.0209324452902
1986-10-01	78.0506377308205
1986-11-01	77.6697177726926
1986-12-01	76.9172071728348
1987-01-01	76.4638565706656
1987-02-01	76.6736601182529
1987-03-01	77.2120518688024
1987-04-01	77.9855017169020
1987-05-01	78.0431874641697
1987-06-01	78.2325937260903
1987-07-01	78.4077892325315
1987-08-01	78.2376502002670
1987-09-01	78.2442748091603
1987-10-01	78.3422459893048
1987-11-01	78.1554324995226
1987-12-01	77.9243119266055
1988-01-01	77.4637127578304
1988-02-01	77.3934645518823
1988-03-01	77.7713957495692
1988-04-01	78.7189292543021
1988-05-01	79.0679908326967
1988-06-01	79.2041323895160
1988-07-01	79.2431192660550
1988-08-01	78.7079510703364
1988-09-01	78.6328050410540
1988-10-01	78.6191111958802
1988-11-01	78.7416587225929
1988-12-01	78.6875837000191
1989-01-01	78.0072671638937
1989-02-01	78.4047436878347
1989-03-01	78.6835055491772
1989-04-01	79.3486590038314
1989-05-01	79.8852772466539
1989-06-01	80.0879036881330
1989-07-01	79.8702537683648
1989-08-01	79.3208698969859
1989-09-01	79.3826219512195
1989-10-01	79.4930436439870
1989-11-01	79.5840488456401
1989-12-01	79.3432607865598
1990-01-01	79.0990647070052
1990-02-01	79.4156960091656
1990-03-01	79.5910567552073
1990-04-01	79.8546011096231
1990-05-01	80.2591463414634
1990-06-01	80.2784665267976
1990-07-01	79.9771167048055
1990-08-01	79.5160060975610
1990-09-01	80.1065043742868
1990-10-01	80.0418171450294
1990-11-01	80.1523809523810
1990-12-01	79.8359404807326
1991-01-01	79.6716930711968
1991-02-01	79.8242262132212
1991-03-01	79.8053063561748
1991-04-01	80.1070131855532
1991-05-01	80.5279265493496
1991-06-01	80.6655192197361
1991-07-01	80.1758745937679
1991-08-01	80.1185241827566
1991-09-01	80.4165074512801
1991-10-01	80.6692160611855
1991-11-01	80.9532924961715
1991-12-01	80.7212737387301
1992-01-01	79.7546012269939
1992-02-01	80.0995024875622
1992-03-01	80.0841783049550
1992-04-01	80.5555555555556
1992-05-01	80.7574598316756
1992-06-01	80.7141493221310
1992-07-01	80.2824966596679
1992-08-01	79.9923707800877
1992-09-01	80.2744425385935
1992-10-01	80.9914204003813
1992-11-01	80.8960915157293
1992-12-01	80.5083126313778
1993-01-01	79.6603701583667
1993-02-01	79.1039084842707
1993-03-01	79.3590232735597
1993-04-01	80.2749665839221
1993-05-01	80.5640243902439
1993-06-01	80.4037326223576
1993-07-01	79.8896499238965
1993-08-01	79.7225389585709
1993-09-01	80.1215112967534
1993-10-01	80.4215723509305
1993-11-01	80.3679817905918
1993-12-01	80.0037943464238
1994-01-01	79.3025018953753
1994-02-01	78.9084707220011
1994-03-01	79.0331753554502
1994-04-01	79.8937784522003
1994-05-01	80.4845731591898
1994-06-01	80.3139183055976
1994-07-01	79.6747967479675
1994-08-01	79.1123701605288
1994-09-01	79.6187959992451
1994-10-01	80.0075514442137
1994-11-01	79.6488578440627
1994-12-01	79.0934844192635
1995-01-01	78.7061486231611
1995-02-01	78.8559562016236
1995-03-01	78.9801699716714
1995-04-01	79.4328922495274
1995-05-01	79.7962648556876
1995-06-01	80.0829093649896
1995-07-01	79.7962648556876
1995-08-01	79.2836946277097
1995-09-01	79.7363465160075
1995-10-01	79.6271888533233
1995-11-01	79.2019574628270
1995-12-01	79.0802864681493
1996-01-01	78.8175484842779
1996-02-01	78.8421648123704
1996-03-01	79.5999245140593
1996-04-01	79.7922568460812
1996-05-01	79.6760218496892
1996-06-01	80.0790811523254
1996-07-01	80.0678221552374
1996-08-01	79.5219273480143
1996-09-01	80.0376293508937
1996-10-01	80.0225733634312
1996-11-01	79.5257809559654
1996-12-01	79.5398830850462
1997-01-01	79.7030633339598
1997-02-01	79.6578304192517
1997-03-01	79.8308270676692
1997-04-01	80.2634054562559
1997-05-01	80.2102891475779
1997-06-01	80.5816135084428
1997-07-01	80.1989489489489
1997-08-01	79.6622889305816
1997-09-01	80.2811621368322
1997-10-01	80.3146656677280
1997-11-01	79.6629213483146
1997-12-01	79.7411367473270
1998-01-01	79.7489696515549
1998-02-01	79.3523025084238
1998-03-01	79.4459004118308
1998-04-01	79.3665667166417
1998-05-01	79.4651206283898
1998-06-01	79.8093101514302
1998-07-01	79.3573696992341
1998-08-01	79.0849673202614
1998-09-01	79.3090569561158
1998-10-01	79.2903828197946
1998-11-01	79.0485074626866
1998-12-01	78.7130564908343
1999-01-01	78.3071748878924
1999-02-01	78.1950672645740
1999-03-01	78.4471468662301
1999-04-01	78.7226072298183
1999-05-01	78.7878787878788
1999-06-01	78.8026192703461
1999-07-01	78.7329471126892
1999-08-01	78.9512968837470
1999-09-01	79.2987691160015
1999-10-01	79.1495710555763
1999-11-01	79.3405365126676
1999-12-01	78.7285607755406
2000-01-01	78.0505952380952
2000-02-01	77.9450018580454
2000-03-01	77.9203869047619
2000-04-01	78.7111193890855
2000-05-01	79.0706319702602
2000-06-01	79.1790490341753
2000-07-01	78.9190193164933
2000-08-01	78.8272406754500
2000-09-01	78.7620459599704
2000-10-01	78.9590664937952
2000-11-01	79.3046051414833
2000-12-01	78.9133247089262
2001-01-01	78.8035450516987
2001-02-01	78.8354898336414
2001-03-01	78.2264011799410
2001-04-01	78.4357129680871
2001-05-01	79.0248390064397
2001-06-01	78.9289657710710
2001-07-01	78.7014897921648
2001-08-01	78.5215152629643
2001-09-01	78.4360625574977
2001-10-01	78.6029411764706
2001-11-01	78.7800845122175
2001-12-01	78.2952871870398
2002-01-01	77.6792313377679
2002-02-01	77.7345918933926
2002-03-01	77.8457545420838
2002-04-01	78.0174818672122
2002-05-01	77.8767631774313
2002-06-01	78.1551596139569
2002-07-01	78.1622023809524
2002-08-01	78.0673989946006
2002-09-01	78.0342516753537
2002-10-01	78.4317377537716
2002-11-01	79.0181071495240
2002-12-01	78.4203630918959
2003-01-01	77.7173913043478
2003-02-01	77.7005448055608
2003-03-01	78.0428249436514
2003-04-01	78.0896759608139
2003-05-01	78.4652999811924
2003-06-01	78.8454306130124
2003-07-01	78.6023733283104
2003-08-01	78.5337353938937
2003-09-01	78.3518762964360
2003-10-01	78.8330815709970
2003-11-01	78.8617886178862
2003-12-01	78.8884673748103
2004-01-01	78.4399316758398
2004-02-01	78.2236591860023
2004-03-01	78.3634633682208
2004-04-01	78.4776403425309
2004-05-01	78.9212883552506
2004-06-01	79.1013384321224
2004-07-01	78.8104800152993
2004-08-01	79.0541834194907
2004-09-01	79.0421455938697
2004-10-01	79.0947449175297
2004-11-01	78.9402956421578
2004-12-01	78.7528868360277
2005-01-01	78.5563041385948
2005-02-01	78.4476117103236
2005-03-01	78.6252172234022
2005-04-01	79.0247678018576
2005-05-01	79.5599305153445
2005-06-01	79.6249758360719
2005-07-01	79.4464873233985
2005-08-01	79.1521486643438
2005-09-01	79.6052631578947
2005-10-01	79.6977915536614
2005-11-01	79.0341349883631
2005-12-01	78.9893100097182
2006-01-01	79.0077821011673
2006-02-01	79.1861370716511
2006-03-01	79.3190661478599
2006-04-01	79.8828125000000
2006-05-01	80.2767491717014
2006-06-01	79.9493374902572
2006-07-01	79.7228727556596
2006-08-01	79.8360335740777
2006-09-01	80.0195121951220
2006-10-01	80.0624268435427
2006-11-01	79.8478345688646
2006-12-01	79.6126002739190
2007-01-01	79.3788087281305
2007-02-01	79.4372294372294
2007-03-01	79.8385508958456
2007-04-01	80.4926108374384
2007-05-01	81.0603074497438
2007-06-01	80.8116627265564
2007-07-01	80.3983435219878
2007-08-01	80.2839116719243
2007-09-01	80.2722430459657
2007-10-01	80.3391835929797
2007-11-01	80.7813733228098
2007-12-01	80.7775804223406
2008-01-01	80.1066772026867
2008-02-01	79.7743914506234
2008-03-01	79.9445654325876
2008-04-01	80.2060630077274
2008-05-01	80.4433887569279
2008-06-01	80.5148514851485
2008-07-01	80.3327391562686
2008-08-01	80.1742919389978
2008-09-01	80.4278922345484
2008-10-01	80.4080824088748
2008-11-01	80.7646592709984
2008-12-01	80.3968253968254
2009-01-01	80.0516077808654
2009-02-01	79.7377830750894
2009-03-01	79.4673027231167
2009-04-01	79.5386756810499
2009-05-01	79.5029821073559
2009-06-01	79.4351630867144
2009-07-01	79.2884118465514
2009-08-01	79.7455774199960
2009-09-01	80.0357924040565
2009-10-01	80.0954464108173
2009-11-01	80.0039793076005
2009-12-01	79.7730439976110
2010-01-01	79.6170721978460
2010-02-01	79.7205588822355
2010-03-01	79.7364743461769
2010-04-01	80.0479808076769
2010-05-01	80.2915335463259
2010-06-01	79.8762227989619
2010-07-01	80.0878769722389
2010-08-01	80.1238513783460
2010-09-01	80.4673457159976
2010-10-01	80.4751447394689
2010-11-01	80.2875973636908
2010-12-01	79.9401197604790
2011-01-01	79.9840191769876
2011-02-01	80.2878848460616
2011-03-01	80.4597701149425
2011-04-01	80.6620912394025
2011-05-01	80.8064516129032
2011-06-01	80.6854838709678
2011-07-01	80.4273331989518
2011-08-01	80.6386418755052
2011-09-01	80.7908470493778
2011-10-01	80.8864821500201
2011-11-01	80.7182985553772
2011-12-01	80.3091128061020
2012-01-01	80.1684379386405
2012-02-01	80.0923138671483
2012-03-01	79.9879566439181
2012-04-01	80.4740859783046
2012-05-01	80.6795335745879
2012-06-01	80.8968429519405
2012-07-01	80.3779654201850
2012-08-01	80.3136939473155
2012-09-01	80.6633165829146
2012-10-01	80.9849246231156
2012-11-01	80.9609971853639
2012-12-01	80.5835010060362
2013-01-01	80.8583518033448
2013-02-01	80.5527536816623
2013-03-01	80.7226483649576
2013-04-01	81.2891493230956
2013-05-01	81.4784891941022
2013-06-01	81.6400727125833
2013-07-01	81.3295615275813
2013-08-01	81.1602991712149
2013-09-01	81.7943018791675
2013-10-01	81.9118835893290
2013-11-01	82.0699413786133
2013-12-01	82.1732092270336
2014-01-01	81.7223910840932
2014-02-01	81.6872845264652
2014-03-01	81.7461928934010
2014-04-01	81.9345661450925
2014-05-01	82.4461600975214
2014-06-01	82.2931490140272
2014-07-01	81.8939239991872
2014-08-01	82.0658804392029
2014-09-01	82.5335502236682
2014-10-01	82.8112286411717
2014-11-01	82.6281529698942
2014-12-01	82.6786077752900
2015-01-01	82.1646962902568
2015-02-01	82.4117527035299
2015-03-01	82.4826459779502
2015-04-01	82.1282679738562
2015-05-01	82.6078070713264
2015-06-01	82.8128189426414
2015-07-01	82.4647455548743
2015-08-01	82.5189122878757
2015-09-01	83.1867457557783
2015-10-01	83.3162952361480
2015-11-01	82.7092285655822
2015-12-01	82.9952878508502
2016-01-01	83.2581967213115
2016-02-01	82.9468499897394
2016-03-01	82.9398480804763
2016-04-01	82.8706559736788
2016-05-01	83.0626927029805
2016-06-01	83.3881578947368
2016-07-01	83.6487042369395
2016-08-01	83.5974480345750
2016-09-01	83.8928939237899
2016-10-01	83.7793330588720
2016-11-01	83.7932454695222
2016-12-01	83.9414553700268
2017-01-01	83.6907216494845
2017-02-01	83.5328105654148
2017-03-01	83.6431226765799
2017-04-01	83.7642192347466
2017-05-01	84.0124095139607
2017-06-01	84.3400910219280
2017-07-01	84.1604631927212
2017-08-01	84.1887417218543
2017-09-01	84.4609973101593
2017-10-01	84.8001656657693
2017-11-01	84.9212924606462
2017-12-01	84.7271218095040
2018-01-01	84.6041969665489
2018-02-01	84.9417637271215
2018-03-01	85.1373855120733
2018-04-01	85.2291666666667
2018-05-01	85.2886017920400
2018-06-01	85.1134707474495
2018-07-01	85.2585487906589
2018-08-01	85.3475266123982
2018-09-01	85.7738840216938