Month	Percent
1968-01-01	52.2610722610723
1968-02-01	51.7931998136935
1968-03-01	53.7889353788935
1968-04-01	56.3079777365492
1968-05-01	58.1363004172462
1968-06-01	58.4259259259259
1968-07-01	57.2088724584104
1968-08-01	56.2990309183202
1968-09-01	56.4976958525346
1968-10-01	57.0772058823529
1968-11-01	56.4479118861863
1968-12-01	53.3241632278771
1969-01-01	51.1681172698122
1969-02-01	52.1699406121517
1969-03-01	53.9023277042446
1969-04-01	55.9306569343066
1969-05-01	57.0778334091944
1969-06-01	57.4090909090909
1969-07-01	56.2471603816447
1969-08-01	55.4599003171726
1969-09-01	56.4764492753623
1969-10-01	56.5807327001357
1969-11-01	55.5505415162455
1969-12-01	53.3634311512415
1970-01-01	51.4195583596215
1970-02-01	51.6448850833709
1970-03-01	53.5553555355536
1970-04-01	55.7951482479784
1970-05-01	57.2519083969466
1970-06-01	56.9313593539704
1970-07-01	56.3930013458950
1970-08-01	55.3115194979830
1970-09-01	55.9337214509628
1970-10-01	56.1717352415027
1970-11-01	54.1144901610018
1970-12-01	52.1038495971352
1971-01-01	50.8732646663681
1971-02-01	50.8064516129032
1971-03-01	53.4529147982063
1971-04-01	53.6738351254480
1971-05-01	54.4966442953020
1971-06-01	54.8704200178731
1971-07-01	54.6672621706119
1971-08-01	54.2335115864528
1971-09-01	53.4459759893286
1971-10-01	54.0408525754884
1971-11-01	54.0133037694013
1971-12-01	51.6843971631206
1972-01-01	50.7950530035336
1972-02-01	50.0440528634361
1972-03-01	51.3192612137203
1972-04-01	52.4582967515364
1972-05-01	54.2231947483589
1972-06-01	54.4104803493450
1972-07-01	54.1089965397924
1972-08-01	53.6175710594315
1972-09-01	53.9982803095443
1972-10-01	55.1517742625054
1972-11-01	54.0332906530090
1972-12-01	52.8358208955224
1973-01-01	51.8487037824054
1973-02-01	52.5021204410517
1973-03-01	53.0906011854361
1973-04-01	53.5638970898355
1973-05-01	54.5187053383775
1973-06-01	55.4297693920336
1973-07-01	54.8616932103940
1973-08-01	53.9039665970772
1973-09-01	54.3976656940392
1973-10-01	56.5126924677486
1973-11-01	55.1681195516812
1973-12-01	51.4096185737977
1974-01-01	50.6402313093763
1974-02-01	51.4014839241550
1974-03-01	51.9769357495881
1974-04-01	53.3251231527094
1974-05-01	54.2588042588043
1974-06-01	54.1853817884851
1974-07-01	53.1619747042024
1974-08-01	52.6829268292683
1974-09-01	52.8838342810723
1974-10-01	53.2035685320357
1974-11-01	52.5889967637540
1974-12-01	50.1212611156023
1975-01-01	48.4665052461663
1975-02-01	49.3757551349174
1975-03-01	50.4435483870968
1975-04-01	50.9441542788268
1975-05-01	53.1300160513644
1975-06-01	54.2433947157726
1975-07-01	53.5785685725710
1975-08-01	52.4950099800399
1975-09-01	52.6483472720032
1975-10-01	52.9037390612570
1975-11-01	52.1272365805169
1975-12-01	50.1389440254069
1976-01-01	49.1881188118812
1976-02-01	49.8417721518987
1976-03-01	50.8501383946224
1976-04-01	51.8167456556082
1976-05-01	52.8948404883813
1976-06-01	53.7947306331105
1976-07-01	53.7431048069346
1976-08-01	53.0219780219780
1976-09-01	53.5266457680251
1976-10-01	53.6594911937378
1976-11-01	52.6047786917352
1976-12-01	51.5056707078608
1977-01-01	50.6635441061671
1977-02-01	50.6822612085770
1977-03-01	51.5411626999610
1977-04-01	53.8611544461778
1977-05-01	54.8035783741735
1977-06-01	55.2447552447552
1977-07-01	54.9301242236025
1977-08-01	53.8759689922481
1977-09-01	54.6264034068912
1977-10-01	54.9922600619195
1977-11-01	54.0634674922601
1977-12-01	52.7863777089783
1978-01-01	51.5467904098995
1978-02-01	52.1083172147002
1978-03-01	53.0391018195896
1978-04-01	54.2261675028946
1978-05-01	56.1078998073218
1978-06-01	56.7026194144838
1978-07-01	55.4913294797688
1978-08-01	54.6748749519046
1978-09-01	55.3248750480584
1978-10-01	56.3797079169869
1978-11-01	55.3592009220131
1978-12-01	54.2099192618224
1979-01-01	53.6098310291859
1979-02-01	53.3205374280230
1979-03-01	53.5330261136713
1979-04-01	55.2995391705069
1979-05-01	56.6717791411043
1979-06-01	56.5350709083940
1979-07-01	56.0153256704981
1979-08-01	55.5938697318008
1979-09-01	55.8192955589586
1979-10-01	57.0444104134763
1979-11-01	56.0611854684512
1979-12-01	54.6845124282983
1980-01-01	53.7844036697248
1980-02-01	54.1108986615679
1980-03-01	54.2671259089170
1980-04-01	55.9633027522936
1980-05-01	56.8320610687023
1980-06-01	57.1156047310187
1980-07-01	56.4171122994652
1980-08-01	55.9923664122138
1980-09-01	56.5764391917652
1980-10-01	56.8216463414634
1980-11-01	56.3047619047619
1980-12-01	55.2842426554750
1981-01-01	53.9634146341463
1981-02-01	53.6000000000000
1981-03-01	54.5350609756098
1981-04-01	56.4836003051106
1981-05-01	57.2571428571429
1981-06-01	56.7022086824067
1981-07-01	56.7783701447068
1981-08-01	56.4092810954736
1981-09-01	56.8225009502090
1981-10-01	57.6966932725200
1981-11-01	57.6206765488407
1981-12-01	57.0503048780488
1982-01-01	55.7121096725057
1982-02-01	55.4963864587296
1982-03-01	56.2118902439024
1982-04-01	57.1047619047619
1982-05-01	57.8767123287671
1982-06-01	57.7727099961992
1982-07-01	56.9961977186312
1982-08-01	56.6438876233865
1982-09-01	57.7127659574468
1982-10-01	58.3523158694002
1982-11-01	57.4961948249620
1982-12-01	57.6380952380952
1983-01-01	56.7844925883694
1983-02-01	56.3664006081338
1983-03-01	57.2734196496573
1983-04-01	58.4316711077274
1983-05-01	59.1774562071592
1983-06-01	58.9733840304182
1983-07-01	58.7362009897221
1983-08-01	58.8056295169266
1983-09-01	59.2480060767186
1983-10-01	59.6044123240776
1983-11-01	58.6757990867580
1983-12-01	57.4095238095238
1984-01-01	56.4356435643564
1984-02-01	56.5167682926829
1984-03-01	57.4752097635393
1984-04-01	58.7271341463415
1984-05-01	59.4059405940594
1984-06-01	59.7333333333333
1984-07-01	59.3523809523810
1984-08-01	58.8056295169266
1984-09-01	60.0532117065754
1984-10-01	60.5173069608216
1984-11-01	59.6197718631179
1984-12-01	58.4222560975610
1985-01-01	57.5399847677076
1985-02-01	57.7464788732394
1985-03-01	58.0350342726580
1985-04-01	59.6109839816934
1985-05-01	60.0609756097561
1985-06-01	59.7942073170732
1985-07-01	59.6952380952381
1985-08-01	59.5728451563692
1985-09-01	60.4642313546423
1985-10-01	60.6164383561644
1985-11-01	59.7338403041825
1985-12-01	57.9969535415080
1986-01-01	57.9207920792079
1986-02-01	58.2572298325723
1986-03-01	58.7652439024390
1986-04-01	60.1219977125429
1986-05-01	60.5353728489484
1986-06-01	60.6651376146789
1986-07-01	60.3356216628528
1986-08-01	59.7942073170732
1986-09-01	60.0152322924600
1986-10-01	60.3428571428571
1986-11-01	60.0152613506295
1986-12-01	58.6483390607102
1987-01-01	57.9389312977099
1987-02-01	58.3428789614357
1987-03-01	59.0839694656488
1987-04-01	60.6720122184040
1987-05-01	60.9560229445507
1987-06-01	61.1494252873563
1987-07-01	60.9410864575363
1987-08-01	60.4198473282443
1987-09-01	60.6106870229008
1987-10-01	60.6569900687548
1987-11-01	60.6801681314482
1987-12-01	60.2372751626483
1988-01-01	59.3499043977055
1988-02-01	59.4718714121699
1988-03-01	60.0919188050555
1988-04-01	61.5767317259854
1988-05-01	62.3182861514920
1988-06-01	62.2222222222222
1988-07-01	62.1362940275651
1988-08-01	61.0494063577174
1988-09-01	61.1940298507463
1988-10-01	61.1004967520061
1988-11-01	61.1450381679389
1988-12-01	61.0812883435583
1989-01-01	60.1993865030675
1989-02-01	60.6896551724138
1989-03-01	61.2197928653625
1989-04-01	62.4807987711214
1989-05-01	63.4445723053318
1989-06-01	63.6119631901840
1989-07-01	63.0309988518944
1989-08-01	62.1414913957935
1989-09-01	62.5143293847917
1989-10-01	62.8440366972477
1989-11-01	62.8538638102525
1989-12-01	62.3898889314439
1990-01-01	62.1600919188051
1990-02-01	62.5860749808722
1990-03-01	62.8976619394404
1990-04-01	63.3192794174013
1990-05-01	63.9525993883792
1990-06-01	64.0260237275163
1990-07-01	63.2988901645618
1990-08-01	62.6432391138274
1990-09-01	63.7681159420290
1990-10-01	63.4006862371330
1990-11-01	63.5217723453018
1990-12-01	63.3090769819992
1991-01-01	63.1316998468606
1991-02-01	63.3435582822086
1991-03-01	63.2042928325029
1991-04-01	63.5980053701573
1991-05-01	64.3872454859777
1991-06-01	64.6449136276392
1991-07-01	63.8910207214121
1991-08-01	63.8526477359939
1991-09-01	64.1980046047582
1991-10-01	64.3625192012289
1991-11-01	64.9750096116878
1991-12-01	64.5608628659476
1992-01-01	62.8461538461538
1992-02-01	63.4548944337812
1992-03-01	63.4408602150538
1992-04-01	64.2829680891965
1992-05-01	64.8368522072937
1992-06-01	64.9923312883436
1992-07-01	63.9325412035263
1992-08-01	63.6294027565084
1992-09-01	64.2310635042081
1992-10-01	65.4037504783774
1992-11-01	65.1607963246554
1992-12-01	64.2994241842610
1993-01-01	62.9785604900459
1993-02-01	62.1745788667688
1993-03-01	62.5910310463779
1993-04-01	63.9708700651591
1993-05-01	64.4852659778033
1993-06-01	64.3458301453711
1993-07-01	63.5217723453018
1993-08-01	63.3969465648855
1993-09-01	63.6675562333206
1993-10-01	64.3537933663744
1993-11-01	64.4080700418729
1993-12-01	63.9344262295082
1994-01-01	62.9615531023982
1994-02-01	62.2907153729072
1994-03-01	62.5808907499048
1994-04-01	64.4054878048780
1994-05-01	65.0190114068441
1994-06-01	64.7796352583586
1994-07-01	63.6536270413976
1994-08-01	62.5569044006070
1994-09-01	63.5432473444613
1994-10-01	64.1774071266110
1994-11-01	63.6225843122395
1994-12-01	62.4667931688804
1995-01-01	62.4857900719970
1995-02-01	62.7845220030349
1995-03-01	62.6185958254270
1995-04-01	63.5638297872340
1995-05-01	64.1909814323607
1995-06-01	64.4965934897805
1995-07-01	63.7225170583776
1995-08-01	62.8171147292692
1995-09-01	63.6638909916730
1995-10-01	63.4644478063540
1995-11-01	63.1101021566402
1995-12-01	62.7889352027283
1996-01-01	62.7554882664648
1996-02-01	62.6277925028398
1996-03-01	63.7983320697498
1996-04-01	64.0986717267552
1996-05-01	64.0530303030303
1996-06-01	64.5588792124195
1996-07-01	64.1666666666667
1996-08-01	63.2614453272796
1996-09-01	64.4099848714070
1996-10-01	64.5856980703746
1996-11-01	63.6672967863894
1996-12-01	63.5053110773900
1997-01-01	63.8080846241028
1997-02-01	63.9046538024972
1997-03-01	64.0938327657964
1997-04-01	64.6858440575322
1997-05-01	64.8148148148148
1997-06-01	65.4339622641510
1997-07-01	64.8148148148148
1997-08-01	64.1480921798262
1997-09-01	65.4470011316484
1997-10-01	65.4223227752640
1997-11-01	64.1672946495855
1997-12-01	64.2101284958428
1998-01-01	64.4553335846212
1998-02-01	63.8658628485305
1998-03-01	64.0513013956997
1998-04-01	64.0648567119155
1998-05-01	64.5598194130926
1998-06-01	64.7479307750188
1998-07-01	63.8826185101580
1998-08-01	63.9473684210526
1998-09-01	64.3634998122418
1998-10-01	64.2508449117536
1998-11-01	63.9128802102892
1998-12-01	63.3006782215524
1999-01-01	62.6080420894401
1999-02-01	62.5328823750470
1999-03-01	63.3182844243792
1999-04-01	63.8899359215982
1999-05-01	63.9442980805420
1999-06-01	63.8418079096045
1999-07-01	63.4449040992854
1999-08-01	63.8753285767931
1999-09-01	64.2132932782576
1999-10-01	63.9774859287054
1999-11-01	64.3794525684290
1999-12-01	63.3496057078483
2000-01-01	62.6357169599401
2000-02-01	62.4439461883408
2000-03-01	62.5842696629213
2000-04-01	63.9055472263868
2000-05-01	64.3471754582866
2000-06-01	64.4859813084112
2000-07-01	64.1016062756817
2000-08-01	63.7789395070948
2000-09-01	63.5447761194030
2000-10-01	63.7988826815642
2000-11-01	64.5329363602531
2000-12-01	63.8764880952381
2001-01-01	64.1397250092902
2001-02-01	64.2857142857143
2001-03-01	63.4372680029696
2001-04-01	63.7713437268003
2001-05-01	64.5925925925926
2001-06-01	64.7908182154758
2001-07-01	64.2724916697520
2001-08-01	63.6565507031828
2001-09-01	63.7911884487227
2001-10-01	64.4469108398076
2001-11-01	65.1145602365114
2001-12-01	64.2089662838088
2002-01-01	63.0483271375465
2002-02-01	63.2911392405063
2002-03-01	63.5074626865672
2002-04-01	63.7860082304527
2002-05-01	63.6804777902202
2002-06-01	63.8297872340426
2002-07-01	63.6976047904192
2002-08-01	63.7181409295352
2002-09-01	64.1947565543071
2002-10-01	64.7433495691270
2002-11-01	65.3658536585366
2002-12-01	64.3825301204819
2003-01-01	63.2253202712886
2003-02-01	63.1897203325775
2003-03-01	64.1452344931921
2003-04-01	64.1530882910193
2003-05-01	64.9129447388342
2003-06-01	65.4806964420893
2003-07-01	64.6078059871163
2003-08-01	64.4048521607278
2003-09-01	64.4537177541730
2003-10-01	65.1728066843904
2003-11-01	65.0684931506849
2003-12-01	64.8968678380443
2004-01-01	64.4385026737968
2004-02-01	64.2310635042081
2004-03-01	64.8162327718224
2004-04-01	64.7261585599387
2004-05-01	65.1457055214724
2004-06-01	65.6923076923077
2004-07-01	65.5889145496536
2004-08-01	65.4973014649190
2004-09-01	65.6117329216519
2004-10-01	65.7539529502507
2004-11-01	65.2241112828439
2004-12-01	64.9980597594102
2005-01-01	64.7674418604651
2005-02-01	64.8701046917410
2005-03-01	65.1515151515152
2005-04-01	65.7187378262563
2005-05-01	66.4593859308201
2005-06-01	66.5109034267913
2005-07-01	66.4065548185720
2005-08-01	65.7966497857421
2005-09-01	66.4458300857366
2005-10-01	66.5886026541764
2005-11-01	65.5078125000000
2005-12-01	65.4780564263323
2006-01-01	65.6605252842023
2006-02-01	65.9866614358572
2006-03-01	65.7512750098078
2006-04-01	66.7060212514758
2006-05-01	67.5176747839748
2006-06-01	66.8237141735375
2006-07-01	66.5617623918175
2006-08-01	67.1389216843762
2006-09-01	67.3220605583956
2006-10-01	67.2963400236128
2006-11-01	67.0338316286389
2006-12-01	66.4824318989341
2007-01-01	65.9928656361474
2007-02-01	66.1636219221604
2007-03-01	66.6269368295590
2007-04-01	67.7008750994431
2007-05-01	68.6679920477137
2007-06-01	68.1113320079523
2007-07-01	67.5029868578256
2007-08-01	67.3038630027877
2007-09-01	67.3306772908366
2007-10-01	67.7689243027888
2007-11-01	68.5007974481659
2007-12-01	68.0334394904459
2008-01-01	67.1057884231537
2008-02-01	66.8132746901240
2008-03-01	67.0000000000000
2008-04-01	67.3076923076923
2008-05-01	67.7329068372651
2008-06-01	67.9200000000000
2008-07-01	67.9200000000000
2008-08-01	67.3338670936749
2008-09-01	67.7341873498799
2008-10-01	68.0561122244489
2008-11-01	68.7224669603524
2008-12-01	68.2036888532478
2009-01-01	67.7782241864202
2009-02-01	67.6045016077170
2009-03-01	66.9345118521494
2009-04-01	67.3231511254019
2009-05-01	67.4708484117411
2009-06-01	67.4839228295820
2009-07-01	67.4306393244873
2009-08-01	68.0337756332931
2009-09-01	68.4507042253521
2009-10-01	68.5185185185185
2009-11-01	68.2897384305835
2009-12-01	67.7809101892872
2010-01-01	67.4062121823316
2010-02-01	67.7705977382876
2010-03-01	67.7041228779305
2010-04-01	68.1229773462783
2010-05-01	68.5529506871463
2010-06-01	67.8917609046850
2010-07-01	68.2976142337242
2010-08-01	68.2148626817448
2010-09-01	69.4579288025890
2010-10-01	69.2805173807599
2010-11-01	68.7019813991104
2010-12-01	68.0000000000000
2011-01-01	68.0696074463780
2011-02-01	68.3528935653582
2011-03-01	68.8396883968840
2011-04-01	69.0759753593429
2011-05-01	69.2780968006563
2011-06-01	69.3032786885246
2011-07-01	69.1110200737403
2011-08-01	68.9428218839984
2011-09-01	69.7314890154597
2011-10-01	69.8902885006095
2011-11-01	69.5245835026412
2011-12-01	68.6864579097194
2012-01-01	68.0989055533036
2012-02-01	68.4253246753247
2012-03-01	68.3698296836983
2012-04-01	69.2526401299756
2012-05-01	69.6341463414634
2012-06-01	69.6994313566206
2012-07-01	69.1182446160098
2012-08-01	68.8084587230582
2012-09-01	69.4715447154472
2012-10-01	70.0406504065041
2012-11-01	69.9064660431070
2012-12-01	69.3935693935694
2013-01-01	69.8082415340677
2013-02-01	70.0000000000000
2013-03-01	70.3673469387755
2013-04-01	70.7805476093175
2013-05-01	70.9150326797386
2013-06-01	70.7924836601307
2013-07-01	70.6459525756337
2013-08-01	70.4006541291905
2013-09-01	71.2883435582822
2013-10-01	71.6680294358136
2013-11-01	71.8609406952965
2013-12-01	71.9607040523946
2014-01-01	71.2587125871259
2014-02-01	71.2936344969199
2014-03-01	71.0180623973728
2014-04-01	71.0818593171534
2014-05-01	71.8338815789474
2014-06-01	71.9341563786008
2014-07-01	71.8106995884774
2014-08-01	71.8106995884774
2014-09-01	72.5401399752985
2014-10-01	73.2481450948063
2014-11-01	73.1244847485573
2014-12-01	72.8659793814433
2015-01-01	72.1074380165289
2015-02-01	72.5206611570248
2015-03-01	72.4907063197026
2015-04-01	71.5467328370554
2015-05-01	72.6708074534162
2015-06-01	73.3774286895411
2015-07-01	72.8666114333057
2015-08-01	72.8139245752176
2015-09-01	73.5294117647059
2015-10-01	73.9436619718310
2015-11-01	73.0737365368683
2015-12-01	73.0290456431535
2016-01-01	73.6820257368202
2016-02-01	73.1392931392931
2016-03-01	73.1585518102372
2016-04-01	73.1137974155898
2016-05-01	73.3333333333333
2016-06-01	74.2083333333333
2016-07-01	74.5106205747605
2016-08-01	74.1868223519600
2016-09-01	74.5302713987474
2016-10-01	74.5515227367543
2016-11-01	74.7601168126825
2016-12-01	75.0731911334170
2017-01-01	74.5196324143692
2017-02-01	74.0910990388634
2017-03-01	74.3514644351464
2017-04-01	74.6856663872590
2017-05-01	75.1362683438155
2017-06-01	75.6496227996647
2017-07-01	75.5025125628141
2017-08-01	75.3775167785235
2017-09-01	75.7448594208980
2017-10-01	75.9764804703906
2017-11-01	76.6484670306594
2017-12-01	76.4408918805216
2018-01-01	76.0219131900548
2018-02-01	76.3069139966273
2018-03-01	76.7510548523207
2018-04-01	77.2804054054054
2018-05-01	76.9003378378378
2018-06-01	76.7088607594937
2018-07-01	77.2093023255814
2018-08-01	77.2130453197798
2018-09-01	77.8247989843419