Month	Percent
1978-01-01	63.0938171401289
1978-02-01	63.4757698734782
1978-03-01	64.5338426644383
1978-04-01	65.6365588831882
1978-05-01	66.8571428571429
1978-06-01	67.0234272802949
1978-07-01	66.3016307582431
1978-08-01	65.8379921493993
1978-09-01	65.9336740758350
1978-10-01	65.9190696570547
1978-11-01	65.5160142348754
1978-12-01	64.7449584816133
1979-01-01	63.9023812344509
1979-02-01	63.6395927066067
1979-03-01	64.5180366646954
1979-04-01	65.8550998699917
1979-05-01	66.6430845419172
1979-06-01	66.8750737289135
1979-07-01	66.7020523708422
1979-08-01	66.3134345931944
1979-09-01	65.8591085499236
1979-10-01	66.0871608128744
1979-11-01	65.5589478628464
1979-12-01	64.5588925387142
1980-01-01	63.4477909293332
1980-02-01	63.4234867111579
1980-03-01	64.4712213383248
1980-04-01	65.9681573402014
1980-05-01	66.3512092534174
1980-06-01	66.7600373482726
1980-07-01	66.6316771635176
1980-08-01	66.2085032032615
1980-09-01	66.1549197487788
1980-10-01	65.9154275092937
1980-11-01	65.4855947955390
1980-12-01	64.6655829075708
1981-01-01	63.7058482918356
1981-02-01	63.6679402570337
1981-03-01	64.7937905468026
1981-04-01	66.2112088930060
1981-05-01	66.4969921332716
1981-06-01	66.5858165858166
1981-07-01	66.3201663201663
1981-08-01	65.9321642824181
1981-09-01	65.9321642824181
1981-10-01	65.9630911188005
1981-11-01	65.6783571758191
1981-12-01	64.9422632794457
1982-01-01	63.8447362358904
1982-02-01	63.9672848750144
1982-03-01	65.0742488776332
1982-04-01	66.2413793103448
1982-05-01	66.8273092369478
1982-06-01	66.5941115820827
1982-07-01	66.1628306423909
1982-08-01	65.8742857142857
1982-09-01	65.9926890564314
1982-10-01	66.1989504905316
1982-11-01	65.7660738714090
1982-12-01	65.4197080291971
1983-01-01	64.8010942664995
1983-02-01	64.7789425706472
1983-03-01	65.6114780232293
1983-04-01	66.7728358548516
1983-05-01	67.4315574236056
1983-06-01	67.4043808875270
1983-07-01	67.0107770845150
1983-08-01	66.7572771548307
1983-09-01	66.7873712798461
1983-10-01	66.7156585641606
1983-11-01	66.1394192746582
1983-12-01	65.1196928635953
1984-01-01	64.1141310477050
1984-02-01	64.2011500732890
1984-03-01	65.2585332882731
1984-04-01	66.5578568212517
1984-05-01	66.8764752163651
1984-06-01	67.1195957327344
1984-07-01	66.7452300785634
1984-08-01	66.4425016812374
1984-09-01	66.8645016797312
1984-10-01	66.7188898836168
1984-11-01	66.0740243766074
1984-12-01	65.0458305387883
1985-01-01	64.3638392857143
1985-02-01	64.3494755634903
1985-03-01	65.0797190322221
1985-04-01	66.3510804188015
1985-05-01	66.7334000667334
1985-06-01	66.4815020553272
1985-07-01	66.4112813679769
1985-08-01	65.9902417387447
1985-09-01	66.3047091412742
1985-10-01	66.2054460925393
1985-11-01	65.6160141561602
1985-12-01	64.4333886124931
1986-01-01	64.1973945683374
1986-02-01	64.1169977924945
1986-03-01	64.9867666519630
1986-04-01	66.2994381403547
1986-05-01	66.2707577257231
1986-06-01	66.3041089870358
1986-07-01	66.4836371623106
1986-08-01	66.1842105263158
1986-09-01	66.0606724345636
1986-10-01	65.9409190371991
1986-11-01	65.3875587624358
1986-12-01	64.5496283340621
1987-01-01	63.8825199257561
1987-02-01	63.8139941054470
1987-03-01	64.8059310946358
1987-04-01	66.1218263048927
1987-05-01	66.5324336090553
1987-06-01	66.4093923252527
1987-07-01	66.1560191221208
1987-08-01	66.1386568297711
1987-09-01	65.9657489703013
1987-10-01	65.8510177566046
1987-11-01	65.5601211072664
1987-12-01	64.9475618985836
1988-01-01	64.1670263271472
1988-02-01	64.0004317789292
1988-03-01	64.8721544934729
1988-04-01	66.2319465402026
1988-05-01	66.7312244458791
1988-06-01	66.5949435180204
1988-07-01	66.5090283748925
1988-08-01	66.1480686695279
1988-09-01	65.9629193012539
1988-10-01	65.8528750401542
1988-11-01	65.5434317501070
1988-12-01	64.9700598802395
1989-01-01	64.0469834490123
1989-02-01	64.2918179876095
1989-03-01	65.2118237114502
1989-04-01	66.4568441267470
1989-05-01	66.9895678092400
1989-06-01	67.1240161667730
1989-07-01	67.0105285547166
1989-08-01	66.4897005733701
1989-09-01	66.3556356696003
1989-10-01	66.3523678355758
1989-11-01	66.1375661375661
1989-12-01	65.6928125330793
1990-01-01	64.7214293265673
1990-02-01	64.9148778682457
1990-03-01	65.8884428480879
1990-04-01	66.8990283058724
1990-05-01	67.5556024032887
1990-06-01	67.4357353560893
1990-07-01	67.3093131057733
1990-08-01	66.7473174836945
1990-09-01	67.1394053997269
1990-10-01	67.1286089238845
1990-11-01	66.6631700409105
1990-12-01	66.1456147712967
1991-01-01	65.4861693210394
1991-02-01	65.5273642273013
1991-03-01	66.4922014027007
1991-04-01	67.4160828191990
1991-05-01	67.9824561403509
1991-06-01	68.1974741676234
1991-07-01	67.8918241620549
1991-08-01	67.7059436913452
1991-09-01	67.7392481516193
1991-10-01	67.4609781477627
1991-11-01	67.3392968587476
1991-12-01	67.0066611157369
1992-01-01	65.9629783693844
1992-02-01	66.4170566822673
1992-03-01	66.9197171381032
1992-04-01	67.7489853262566
1992-05-01	68.3149802617910
1992-06-01	68.2086920443937
1992-07-01	67.8738196534191
1992-08-01	67.8204995336304
1992-09-01	67.8053830227743
1992-10-01	67.9698003930086
1992-11-01	67.8449612403101
1992-12-01	67.2979405981579
1993-01-01	66.0673692911759
1993-02-01	65.9811925183425
1993-03-01	66.6701084150749
1993-04-01	67.6986584107327
1993-05-01	68.2408744070942
1993-06-01	68.2333539476396
1993-07-01	68.0436798186876
1993-08-01	67.7678295770300
1993-09-01	67.7429305912596
1993-10-01	67.9346149892053
1993-11-01	67.6663927691044
1993-12-01	67.2249049624987
1994-01-01	66.2149676624576
1994-02-01	66.0778473862586
1994-03-01	66.7761469773170
1994-04-01	67.9396365876194
1994-05-01	68.3681836818368
1994-06-01	68.2172131147541
1994-07-01	67.9581795817958
1994-08-01	67.7346708977377
1994-09-01	67.5700552260176
1994-10-01	67.5255623721881
1994-11-01	67.1573137074517
1994-12-01	66.6325800184068
1995-01-01	65.9209316579834
1995-02-01	65.9646252939372
1995-03-01	66.7415959946868
1995-04-01	67.6347274772472
1995-05-01	67.8917815211843
1995-06-01	68.0983472760661
1995-07-01	68.0453431372549
1995-08-01	67.6905806714971
1995-09-01	68.0261011419250
1995-10-01	67.5940079486396
1995-11-01	67.0842244627762
1995-12-01	66.6734631460903
1996-01-01	66.0081466395112
1996-02-01	65.8173664900122
1996-03-01	66.8535317500764
1996-04-01	67.8422179186627
1996-05-01	68.0916030534351
1996-06-01	68.5382972230699
1996-07-01	68.5330347144457
1996-08-01	68.0093581527820
1996-09-01	68.1601137864472
1996-10-01	67.9293185741850
1996-11-01	67.3264311814860
1996-12-01	66.9647393557565
1997-01-01	66.6160388821385
1997-02-01	66.7241029799311
1997-03-01	67.3824959481361
1997-04-01	68.1661600810537
1997-05-01	68.6595852301467
1997-06-01	68.8902365069739
1997-07-01	68.6734797126379
1997-08-01	68.1496461071790
1997-09-01	68.1712612339695
1997-10-01	68.1708055723804
1997-11-01	67.4101735970933
1997-12-01	67.2190784155214
1998-01-01	66.8819374369324
1998-02-01	66.5084814216478
1998-03-01	67.2415532022189
1998-04-01	67.9850670971648
1998-05-01	68.5728693898134
1998-06-01	68.5383064516129
1998-07-01	68.1589030046380
1998-08-01	68.0572349858928
1998-09-01	67.8413209826822
1998-10-01	67.7974632574995
1998-11-01	67.3342054946161
1998-12-01	66.8614609571788
1999-01-01	66.4453164302244
1999-02-01	66.2201631584248
1999-03-01	66.9419822723610
1999-04-01	67.7542799597180
1999-05-01	68.1626081706581
1999-06-01	67.9887255888866
1999-07-01	67.6393640571544
1999-08-01	67.8301981691983
1999-09-01	67.7892832009651
1999-10-01	67.5713711298754
1999-11-01	67.2294241784745
1999-12-01	66.6867772750126
2000-01-01	66.1909547738694
2000-02-01	65.9630076397266
2000-03-01	66.5091018807201
2000-04-01	67.4584801207851
2000-05-01	67.8093897657585
2000-06-01	67.6278508992264
2000-07-01	67.4278241625591
2000-08-01	67.3537100341846
2000-09-01	67.4304090041202
2000-10-01	67.5909182238296
2000-11-01	67.4565719449744
2000-12-01	66.8240257131378
2001-01-01	66.3050030138638
2001-02-01	66.3680289913429
2001-03-01	66.7672500502917
2001-04-01	67.2536982992855
2001-05-01	67.6352302433139
2001-06-01	67.5314228255405
2001-07-01	67.2935733681987
2001-08-01	67.2398190045249
2001-09-01	66.8977992161592
2001-10-01	66.9412355600201
2001-11-01	67.0982635752284
2001-12-01	66.4054651396424
2002-01-01	65.6410256410256
2002-02-01	65.6662302346661
2002-03-01	66.3241664148282
2002-04-01	66.6263481503881
2002-05-01	66.7807874332897
2002-06-01	66.9082125603865
2002-07-01	66.8211120064464
2002-08-01	66.8714746172442
2002-09-01	66.6666666666667
2002-10-01	66.7001910892085
2002-11-01	66.4753272910373
2002-12-01	65.9304084720121
2003-01-01	65.3458358540028
2003-02-01	65.1892983341747
2003-03-01	66.0482000605022
2003-04-01	66.4883955600404
2003-05-01	66.8850806451613
2003-06-01	67.1434327155520
2003-07-01	66.7405764966740
2003-08-01	66.4616315417969
2003-09-01	66.4314516129032
2003-10-01	66.4213709677419
2003-11-01	66.2230288364590
2003-12-01	65.8484848484848
2004-01-01	65.1831668180442
2004-02-01	65.1945426983325
2004-03-01	65.7947889315290
2004-04-01	66.4681538306248
2004-05-01	66.6397333602666
2004-06-01	66.4879627756423
2004-07-01	66.6363176530096
2004-08-01	66.7982189840113
2004-09-01	66.4677321464698
2004-10-01	66.4643399089530
2004-11-01	65.9486245954693
2004-12-01	65.6373392730586
2005-01-01	65.4317238586902
2005-02-01	65.2350081037277
2005-03-01	65.6766345666498
2005-04-01	66.4907651715040
2005-05-01	67.1125975473802
2005-06-01	66.8424789532407
2005-07-01	66.8661864664705
2005-08-01	66.7478437341451
2005-09-01	67.0995231814954
2005-10-01	67.1232876712329
2005-11-01	66.3282915440057
2005-12-01	65.8100558659218
2006-01-01	65.7247408009758
2006-02-01	65.6962540716612
2006-03-01	66.0835960541035
2006-04-01	66.7040358744394
2006-05-01	67.3658486915793
2006-06-01	67.2499745650626
2006-07-01	66.9823810978715
2006-08-01	67.1115639327560
2006-09-01	67.2745797249108
2006-10-01	67.3627381073648
2006-11-01	66.8771643919332
2006-12-01	66.2078107474253
2007-01-01	65.7279869401082
2007-02-01	66.1119052481111
2007-03-01	66.6802901808522
2007-04-01	67.4741899212920
2007-05-01	67.8250204415372
2007-06-01	67.6410466067048
2007-07-01	67.1948476794112
2007-08-01	67.2154617036507
2007-09-01	67.3041521783596
2007-10-01	67.3452685421995
2007-11-01	67.2671443193449
2007-12-01	66.7622363301249
2008-01-01	66.3148186103710
2008-02-01	66.2802626179729
2008-03-01	66.6906179429275
2008-04-01	67.5978227380096
2008-05-01	67.9433206694732
2008-06-01	67.6902536715621
2008-07-01	67.1664783814316
2008-08-01	67.4306269270298
2008-09-01	67.3003802281369
2008-10-01	67.1465295629820
2008-11-01	67.2598230816704
2008-12-01	66.8484973240016
2009-01-01	66.6391922522151
2009-02-01	66.5944942777606
2009-03-01	66.7629461522591
2009-04-01	67.5472087503870
2009-05-01	67.7432669487153
2009-06-01	67.3614694046022
2009-07-01	67.1655656482246
2009-08-01	67.4963850444123
2009-09-01	67.5756636711084
2009-10-01	67.1590909090909
2009-11-01	66.9698222405953
2009-12-01	66.5735856862137
2010-01-01	66.5976392627873
2010-02-01	66.4386401326700
2010-03-01	66.9017736749300
2010-04-01	67.4657534246575
2010-05-01	67.6214196762142
2010-06-01	67.3996473394876
2010-07-01	67.2132848988064
2010-08-01	67.3969473574914
2010-09-01	67.7814707104279
2010-10-01	67.5187032418953
2010-11-01	67.0859756731469
2010-12-01	66.8088204701477
2011-01-01	66.6874869872996
2011-02-01	66.8056279312142
2011-03-01	66.7393675027263
2011-04-01	67.4484564197666
2011-05-01	67.5646199149307
2011-06-01	67.3794457778748
2011-07-01	67.0013094718464
2011-08-01	66.9256017505470
2011-09-01	67.1722983575688
2011-10-01	67.1721397197239
2011-11-01	67.1757322175732
2011-12-01	66.7922553636839
2012-01-01	66.3408547364043
2012-02-01	66.5660455917560
2012-03-01	66.6527763308678
2012-04-01	67.3129038982698
2012-05-01	67.4246375299885
2012-06-01	67.4280350438048
2012-07-01	67.1221445707729
2012-08-01	67.1777221526909
2012-09-01	67.3656755346896
2012-10-01	67.4911292005844
2012-11-01	67.2619047619048
2012-12-01	66.6283564935744
2013-01-01	66.8794474675596
2013-02-01	67.1135316296606
2013-03-01	67.2184389732844
2013-04-01	67.9350104821803
2013-05-01	68.1098647656987
2013-06-01	67.9174090766167
2013-07-01	67.6239387904832
2013-08-01	67.8796140939597
2013-09-01	68.0536631380358
2013-10-01	68.1899171994550
2013-11-01	68.2146975573960
2013-12-01	67.5964765100671
2014-01-01	67.2580306529498
2014-02-01	67.3741725333614
2014-03-01	67.6968359087564
2014-04-01	68.1320992848128
2014-05-01	68.5101461465671
2014-06-01	68.5311744296078
2014-07-01	68.2296047098402
2014-08-01	68.2272488164124
2014-09-01	68.5561047428752
2014-10-01	68.4625907608124
2014-11-01	68.2066933277205
2014-12-01	68.1162472359693
2015-01-01	67.9245283018868
2015-02-01	67.9995779700359
2015-03-01	67.9615750026391
2015-04-01	68.2192648922687
2015-05-01	68.6384282243583
2015-06-01	68.9433125725747
2015-07-01	68.5723343548558
2015-08-01	68.5913705583756
2015-09-01	69.2177589852008
2015-10-01	68.9607780949360
2015-11-01	68.5424159086101
2015-12-01	68.6216387889054
2016-01-01	68.8135593220339
2016-02-01	68.5092838196286
2016-03-01	68.3897675406008
2016-04-01	69.0534367364283
2016-05-01	69.3925233644860
2016-06-01	69.7439711037926
2016-07-01	69.5610585609523
2016-08-01	69.6202531645570
2016-09-01	69.8882384246940
2016-10-01	69.8414387570501
2016-11-01	69.5494727873043
2016-12-01	69.6908315565032
2017-01-01	69.5175205027159
2017-02-01	69.0085287846482
2017-03-01	69.0313633454235
2017-04-01	69.8066858912742
2017-05-01	70.3917173657808
2017-06-01	70.6152531510361
2017-07-01	70.3577148958890
2017-08-01	70.4788371098760
2017-09-01	70.7019980767176
2017-10-01	70.6146445750935
2017-11-01	70.3743315508021
2017-12-01	70.2751900631759
2018-01-01	70.3612391467467
2018-02-01	70.5074562815149
2018-03-01	71.0051546391753
2018-04-01	71.6863587540279
2018-05-01	71.7400644468314
2018-06-01	71.6784717750590
2018-07-01	71.5989684074790
2018-08-01	71.8450779989242
2018-09-01	71.9939771993977