Month	Percent
1978-01-01	36.5600381952733
1978-02-01	36.2138935306756
1978-03-01	35.1080339023517
1978-04-01	34.0532156067295
1978-05-01	32.9047619047619
1978-06-01	32.7030562492568
1978-07-01	33.3888822759195
1978-08-01	33.8884263114072
1978-09-01	33.7929394983953
1978-10-01	33.8198647205411
1978-11-01	34.2230130486358
1978-12-01	34.9584816132859
1979-01-01	35.8132922639498
1979-02-01	36.0525692635567
1979-03-01	35.2454169130692
1979-04-01	33.8494267817043
1979-05-01	33.0267657115906
1979-06-01	32.8182139907986
1979-07-01	32.9205001179524
1979-08-01	33.2862357235370
1979-09-01	33.7527931318358
1979-10-01	33.5017032773405
1979-11-01	34.1240018788163
1979-12-01	35.1008916001877
1980-01-01	36.1537560060940
1980-02-01	36.1433087460485
1980-03-01	35.1076275152082
1980-04-01	33.6923437134161
1980-05-01	33.3099661175371
1980-06-01	32.9014939309057
1980-07-01	32.9717751341264
1980-08-01	33.3954571927781
1980-09-01	33.4729006745755
1980-10-01	33.7244423791822
1980-11-01	34.1426579925651
1980-12-01	34.9163957268927
1981-01-01	35.9235668789809
1981-02-01	35.9615607271043
1981-03-01	34.8586654309546
1981-04-01	33.4298286243631
1981-05-01	33.1443776029616
1981-06-01	33.0561330561331
1981-07-01	33.3102333102333
1981-08-01	33.7101984310106
1981-09-01	33.7563451776650
1981-10-01	33.7485582468281
1981-11-01	33.9640055376096
1981-12-01	34.6420323325635
1982-01-01	35.7636489288182
1982-02-01	35.6410551779749
1982-03-01	34.4998273281916
1982-04-01	33.3678160919540
1982-05-01	32.8055077452668
1982-06-01	33.0851185702830
1982-07-01	33.4363907019352
1982-08-01	33.8057142857143
1982-09-01	33.6874571624400
1982-10-01	33.4816335843030
1982-11-01	33.8463292293662
1982-12-01	34.0898722627737
1983-01-01	34.8227516243018
1983-02-01	34.9020054694622
1983-03-01	33.9330448644956
1983-04-01	32.7835286088045
1983-05-01	32.0913325002840
1983-06-01	32.1983883781637
1983-07-01	32.5354509359047
1983-08-01	32.8236493374108
1983-09-01	32.8278827656444
1983-10-01	32.8321085358960
1983-11-01	33.3973562309344
1983-12-01	34.3721770551039
1984-01-01	35.3558136912146
1984-02-01	35.2576389671891
1984-03-01	34.1782133603695
1984-04-01	32.9356145880234
1984-05-01	32.5502978532089
1984-06-01	32.3189219539584
1984-07-01	32.6936026936027
1984-08-01	33.0082941044609
1984-09-01	32.6875699888018
1984-10-01	32.7999104744852
1984-11-01	33.4451526333445
1984-12-01	34.3952604515985
1985-01-01	35.0892857142857
1985-02-01	35.1484043740237
1985-03-01	34.3628052179730
1985-04-01	33.0585876587213
1985-05-01	32.6993660326994
1985-06-01	32.8741250972114
1985-07-01	32.9558072396180
1985-08-01	33.3111554668441
1985-09-01	33.1745152354571
1985-10-01	33.2742970998450
1985-11-01	33.8863083388631
1985-12-01	34.9917081260365
1986-01-01	35.2395672333849
1986-02-01	35.4083885209713
1986-03-01	34.5500661667402
1986-04-01	33.1607359259667
1986-05-01	32.9154294512262
1986-06-01	32.8938694792353
1986-07-01	32.9013837030529
1986-08-01	33.2565789473684
1986-09-01	33.4574526338846
1986-10-01	33.5557986870897
1986-11-01	34.0439488356838
1986-12-01	34.8054219501530
1987-01-01	35.5060596134949
1987-02-01	35.5965505949132
1987-03-01	34.6707370257305
1987-04-01	33.3660237550398
1987-05-01	32.8254244666957
1987-06-01	32.9166213718882
1987-07-01	33.2790091264668
1987-08-01	33.3297168276012
1987-09-01	33.4597875569044
1987-10-01	33.6401039411000
1987-11-01	33.9532871972318
1987-12-01	34.4902151583955
1988-01-01	35.3042727665084
1988-02-01	35.5138169257340
1988-03-01	34.5668356888553
1988-04-01	33.2938133218366
1988-05-01	32.7953518398967
1988-06-01	32.8886498117267
1988-07-01	32.9320722269991
1988-08-01	33.2618025751073
1988-09-01	33.5441003107920
1988-10-01	33.7081057929114
1988-11-01	34.0393667094566
1988-12-01	34.4418306244654
1989-01-01	35.3336892685531
1989-02-01	35.1741080965606
1989-03-01	34.2439440828087
1989-04-01	32.9883708524485
1989-05-01	32.4355971896956
1989-06-01	32.3122739842587
1989-07-01	32.5321705838562
1989-08-01	33.0324909747292
1989-09-01	33.2414378114728
1989-10-01	33.2132641169615
1989-11-01	33.3121693121693
1989-12-01	33.7779189160580
1990-01-01	34.7288296860133
1990-02-01	34.5246907052977
1990-03-01	33.5410944432706
1990-04-01	32.5411913814956
1990-05-01	31.9911457784336
1990-06-01	32.0691108301728
1990-07-01	32.1744627054362
1990-08-01	32.7372185987797
1990-09-01	32.4613930034668
1990-10-01	32.5144356955381
1990-11-01	32.8333158502046
1990-12-01	33.2878724297104
1991-01-01	33.9899413243923
1991-02-01	33.9903543719857
1991-03-01	33.0367423845912
1991-04-01	32.1133535501412
1991-05-01	31.5267335004177
1991-06-01	31.3328462582194
1991-07-01	31.7427169259685
1991-08-01	31.9499478623566
1991-09-01	31.8858689992711
1991-10-01	32.1227887617066
1991-11-01	32.1822342417308
1991-12-01	32.4729392173189
1992-01-01	33.6002495840266
1992-02-01	33.2709308372335
1992-03-01	32.7995008319468
1992-04-01	31.9700280986575
1992-05-01	31.4356949927280
1992-06-01	31.5319987553158
1992-07-01	31.9290235550482
1992-08-01	31.9722251010467
1992-09-01	32.0082815734990
1992-10-01	31.7923259902782
1992-11-01	31.9173126614987
1992-12-01	32.4847355893615
1993-01-01	33.7156437280430
1993-02-01	33.8638007646998
1993-03-01	33.1543624161074
1993-04-01	32.0846233230134
1993-05-01	31.5941431222933
1993-06-01	31.6429602143888
1993-07-01	31.7914906768312
1993-08-01	32.1086755171349
1993-09-01	32.1336760925450
1993-10-01	31.9420170658990
1993-11-01	32.2103533278554
1993-12-01	32.6723517928696
1994-01-01	33.7131711323273
1994-02-01	33.8399917839170
1994-03-01	33.1212152314482
1994-04-01	31.9474386613284
1994-05-01	31.5088150881509
1994-06-01	31.7008196721311
1994-07-01	31.9905699056991
1994-08-01	32.1834374040332
1994-09-01	32.3685825322152
1994-10-01	32.4130879345603
1994-11-01	32.7711335991005
1994-12-01	33.2958380202475
1995-01-01	34.0177750536316
1995-02-01	33.9638073816583
1995-03-01	33.1460100132829
1995-04-01	32.3039165558851
1995-05-01	32.0469627360898
1995-06-01	31.8302387267904
1995-07-01	31.8627450980392
1995-08-01	32.2175732217573
1995-09-01	31.9025285481240
1995-10-01	32.3346581065933
1995-11-01	32.8546695182809
1995-12-01	33.2857579773677
1996-01-01	33.9409368635438
1996-02-01	34.0909090909091
1996-03-01	33.0853124044440
1996-04-01	32.0762409540312
1996-05-01	31.8473282442748
1996-06-01	31.4108432509409
1996-07-01	31.4160643387967
1996-08-01	31.9194385108331
1996-09-01	31.7484506756070
1996-10-01	31.9894384076368
1996-11-01	32.5619163621600
1996-12-01	32.9234833858348
1997-01-01	33.2928311057108
1997-02-01	33.1948104601662
1997-03-01	32.5263371150729
1997-04-01	31.7426545086120
1997-05-01	31.2493677288821
1997-06-01	30.9884778653730
1997-07-01	31.2354548214105
1997-08-01	31.7087967644085
1997-09-01	31.6974654145208
1997-10-01	31.7383403997577
1997-11-01	32.4788050060557
1997-12-01	32.6798706548100
1998-01-01	32.9667003027245
1998-02-01	33.4309369951535
1998-03-01	32.6374180534544
1998-04-01	31.8837655130663
1998-05-01	31.3161875945537
1998-06-01	31.3508064516129
1998-07-01	31.7705182496471
1998-08-01	31.8823055219670
1998-09-01	32.0579943616593
1998-10-01	32.0918059190658
1998-11-01	32.5752239106370
1998-12-01	33.0075566750630
1999-01-01	33.3937015796358
1999-02-01	33.6589787491187
1999-03-01	32.9069298952458
1999-04-01	32.0644511581068
1999-05-01	31.6361440933790
1999-06-01	31.8602778337024
1999-07-01	32.1895753672771
1999-08-01	32.0692083291419
1999-09-01	32.0800241278778
1999-10-01	32.3080016083635
1999-11-01	32.6298864435735
1999-12-01	33.2026143790850
2000-01-01	33.6683417085427
2000-02-01	33.9163650985123
2000-03-01	33.3702101981293
2000-04-01	32.4710619023654
2000-05-01	32.0599175630844
2000-06-01	32.1912991057972
2000-07-01	32.4514636354492
2000-08-01	32.5055298612508
2000-09-01	32.4289016179278
2000-10-01	32.2985734378139
2000-11-01	32.4329751983131
2000-12-01	33.0956207312174
2001-01-01	33.5844886477798
2001-02-01	33.5212401852225
2001-03-01	33.1522832428083
2001-04-01	32.6557311059676
2001-05-01	32.2843354112206
2001-06-01	32.3881347410759
2001-07-01	32.6058533641758
2001-08-01	32.6797385620915
2001-09-01	33.0017083710180
2001-10-01	32.9884480160723
2001-11-01	32.8214393255044
2001-12-01	33.5141651597348
2002-01-01	34.2785319255908
2002-02-01	34.2431261959915
2002-03-01	33.5952452906215
2002-04-01	33.2526963007761
2002-05-01	33.1285872520391
2002-06-01	33.0112721417069
2002-07-01	33.0983078162772
2002-08-01	33.0278001611604
2002-09-01	33.2327195894959
2002-10-01	33.1891783164035
2002-11-01	33.4340382678751
2002-12-01	33.9889056984367
2003-01-01	34.5533373664045
2003-02-01	34.7299343765775
2003-03-01	33.8408792981749
2003-04-01	33.3905146316852
2003-05-01	33.0040322580645
2003-06-01	32.7558420628525
2003-07-01	33.1284015319492
2003-08-01	33.4375315115458
2003-09-01	33.4677419354839
2003-10-01	33.4778225806452
2003-11-01	33.6559790280298
2003-12-01	34.0202020202020
2004-01-01	34.6553638106772
2004-02-01	34.6538655886812
2004-03-01	34.0840234296102
2004-04-01	33.4309074391844
2004-05-01	33.2693667306333
2004-06-01	33.3704228201497
2004-07-01	33.2119372787051
2004-08-01	33.0904675166970
2004-09-01	33.4108840784948
2004-10-01	33.4446130500759
2004-11-01	33.9097896440129
2004-12-01	34.2310418143161
2005-01-01	34.3860714647232
2005-02-01	34.6130470016207
2005-03-01	34.1611758743031
2005-04-01	33.3773087071240
2005-05-01	32.7961893179284
2005-06-01	33.0358048483619
2005-07-01	32.9917824896013
2005-08-01	33.1506849315068
2005-09-01	32.8497514456731
2005-10-01	32.8158295281583
2005-11-01	33.5701959191960
2005-12-01	34.0578974098527
2006-01-01	34.1431185200244
2006-02-01	34.2223127035831
2006-03-01	33.8655547645683
2006-04-01	33.2450061149613
2006-05-01	32.5832399959271
2006-06-01	32.6584596601892
2006-07-01	32.9361442102047
2006-08-01	32.7967396841569
2006-09-01	32.6744778400408
2006-10-01	32.5557706020169
2006-11-01	33.0413526176411
2006-12-01	33.6800244723157
2007-01-01	34.1597796143251
2007-02-01	33.8064120890341
2007-03-01	33.2481863696741
2007-04-01	32.4747010119595
2007-05-01	32.1238757154538
2007-06-01	32.3180703188880
2007-07-01	32.7438151707217
2007-08-01	32.7129563350036
2007-09-01	32.6242585395786
2007-10-01	32.5933503836317
2007-11-01	32.6509723643808
2007-12-01	33.1865656358796
2008-01-01	33.6441893830703
2008-02-01	33.6581862946245
2008-03-01	33.2272633956066
2008-04-01	32.3302865358940
2008-05-01	32.0053393572235
2008-06-01	32.2789360172538
2008-07-01	32.7513607887440
2008-08-01	32.5179856115108
2008-09-01	32.6482375912034
2008-10-01	32.8226221079692
2008-11-01	32.7093190701502
2008-12-01	33.1103334705640
2009-01-01	33.3298990315269
2009-02-01	33.3539540158779
2009-03-01	33.1957912110584
2009-04-01	32.4321535445258
2009-05-01	32.2360953461975
2009-06-01	32.5869363326798
2009-07-01	32.8034682080925
2009-08-01	32.4726296219789
2009-09-01	32.3933477946493
2009-10-01	32.7995867768595
2009-11-01	32.9991732120711
2009-12-01	33.3850449891406
2010-01-01	33.3712984054670
2010-02-01	33.4888059701492
2010-03-01	33.0359921170003
2010-04-01	32.4512245745122
2010-05-01	32.3578248235782
2010-06-01	32.5277460844311
2010-07-01	32.7036844836534
2010-08-01	32.5407538158031
2010-09-01	32.1458246780224
2010-10-01	32.4397339983375
2010-11-01	32.8308555982950
2010-12-01	33.1391720407739
2011-01-01	33.2188215698522
2011-02-01	33.1422615945805
2011-03-01	33.2606324972737
2011-04-01	32.5515435802334
2011-05-01	32.4353800850693
2011-06-01	32.6205542221252
2011-07-01	32.9986905281536
2011-08-01	33.0743982494530
2011-09-01	32.8067789517732
2011-10-01	32.8174022171094
2011-11-01	32.8033472803347
2011-12-01	33.1972789115646
2012-01-01	33.6383487574088
2012-02-01	33.4131362548142
2012-03-01	33.3263881654339
2012-04-01	32.6662497394205
2012-05-01	32.5336393032231
2012-06-01	32.5302461410096
2012-07-01	32.8569938458329
2012-08-01	32.8222778473091
2012-09-01	32.6343244653104
2012-10-01	32.5088707994156
2012-11-01	32.7380952380952
2012-12-01	33.3716435064257
2013-01-01	33.1205525324404
2013-02-01	32.8864683703393
2013-03-01	32.7815610267156
2013-04-01	32.0649895178197
2013-05-01	31.8901352343013
2013-06-01	32.0825909233833
2013-07-01	32.3760612095168
2013-08-01	32.1203859060403
2013-09-01	31.9463368619642
2013-10-01	31.8100828005450
2013-11-01	31.7853024426040
2013-12-01	32.4035234899329
2014-01-01	32.7419693470502
2014-02-01	32.6258274666386
2014-03-01	32.3031640912436
2014-04-01	31.8679007151872
2014-05-01	31.4898538534329
2014-06-01	31.4688255703922
2014-07-01	31.7703952901598
2014-08-01	31.7727511835876
2014-09-01	31.4438952571248
2014-10-01	31.5374092391876
2014-11-01	31.7933066722795
2014-12-01	31.8837527640307
2015-01-01	32.0754716981132
2015-02-01	32.0004220299641
2015-03-01	32.0384249973609
2015-04-01	31.7807351077313
2015-05-01	31.3615717756417
2015-06-01	31.0566874274253
2015-07-01	31.4276656451442
2015-08-01	31.4086294416244
2015-09-01	30.7822410147992
2015-10-01	31.0392219050640
2015-11-01	31.4575840913899
2015-12-01	31.3783612110946
2016-01-01	31.1864406779661
2016-02-01	31.4907161803714
2016-03-01	31.6102324593992
2016-04-01	30.9465632635717
2016-05-01	30.6074766355140
2016-06-01	30.2560288962074
2016-07-01	30.4389414390477
2016-08-01	30.3797468354430
2016-09-01	30.1117615753060
2016-10-01	30.1585612429499
2016-11-01	30.4505272126957
2016-12-01	30.3091684434968
2017-01-01	30.4824794972841
2017-02-01	30.9914712153518
2017-03-01	30.9686366545765
2017-04-01	30.1933141087258
2017-05-01	29.6082826342192
2017-06-01	29.3847468489639
2017-07-01	29.6422851041111
2017-08-01	29.5211628901240
2017-09-01	29.2980019232824
2017-10-01	29.3853554249065
2017-11-01	29.6256684491979
2017-12-01	29.7248099368241
2018-01-01	29.6387608532533
2018-02-01	29.4925437184851
2018-03-01	28.9948453608247
2018-04-01	28.3136412459721
2018-05-01	28.2599355531686
2018-06-01	28.3215282249410
2018-07-01	28.4010315925210
2018-08-01	28.1549220010758
2018-09-01	28.0060228006023