Month	Percent
1968-01-01	38.7808041504540
1968-02-01	39.7153945666235
1968-03-01	37.1612903225806
1968-04-01	34.4072164948454
1968-05-01	32.9472329472330
1968-06-01	32.9048843187661
1968-07-01	33.5044929396662
1968-08-01	33.0769230769231
1968-09-01	32.9923273657289
1968-10-01	33.2908163265306
1968-11-01	34.6496815286624
1968-12-01	37.1501272264631
1969-01-01	38.9100126742712
1969-02-01	38.6852085967130
1969-03-01	36.3979848866499
1969-04-01	34.4654088050314
1969-05-01	32.4968632371393
1969-06-01	32.8320802005012
1969-07-01	34.2500000000000
1969-08-01	33.9575530586766
1969-09-01	33.1257783312578
1969-10-01	33.2919254658385
1969-11-01	35.3598014888337
1969-12-01	37.9652605459057
1970-01-01	38.5661310259580
1970-02-01	38.6419753086420
1970-03-01	37.4384236453202
1970-04-01	35.1351351351351
1970-05-01	34.2331288343558
1970-06-01	32.8431372549020
1970-07-01	33.4149326805386
1970-08-01	34.9206349206349
1970-09-01	34.1047503045067
1970-10-01	34.7509113001215
1970-11-01	36.6504854368932
1970-12-01	38.7606318347509
1971-01-01	38.9830508474576
1971-02-01	39.0096618357488
1971-03-01	37.3798076923077
1971-04-01	34.7721822541966
1971-05-01	33.5329341317365
1971-06-01	33.0143540669856
1971-07-01	34.0095465393795
1971-08-01	34.4457687723480
1971-09-01	33.7693222354340
1971-10-01	33.4519572953737
1971-11-01	35.2313167259786
1971-12-01	37.8859857482185
1972-01-01	39.5734597156398
1972-02-01	40.2860548271752
1972-03-01	38.4798099762470
1972-04-01	35.5871886120996
1972-05-01	34.2417061611374
1972-06-01	35.4685646500593
1972-07-01	34.7058823529412
1972-08-01	35.2526439482961
1972-09-01	35.8401880141011
1972-10-01	35.4385964912281
1972-11-01	37.5000000000000
1972-12-01	38.4345794392523
1973-01-01	38.3897316219370
1973-02-01	38.8111888111888
1973-03-01	37.7030162412993
1973-04-01	36.3530778164924
1973-05-01	36.0788863109049
1973-06-01	35.0694444444444
1973-07-01	34.8379629629630
1973-08-01	35.3757225433526
1973-09-01	35.2601156069364
1973-10-01	33.4104046242775
1973-11-01	34.9132947976879
1973-12-01	37.9190751445087
1974-01-01	39.4463667820069
1974-02-01	38.9850057670127
1974-03-01	37.6728110599078
1974-04-01	36.2903225806452
1974-05-01	35.8294930875576
1974-06-01	35.5247981545559
1974-07-01	35.5247981545559
1974-08-01	35.8294930875576
1974-09-01	35.8620689655172
1974-10-01	35.2873563218391
1974-11-01	37.4282433983926
1974-12-01	39.0607101947308
1975-01-01	40.3648802736602
1975-02-01	40.3868031854380
1975-03-01	38.2519863791146
1975-04-01	36.8898978433598
1975-05-01	35.4072398190045
1975-06-01	35.7787810383747
1975-07-01	35.2874859075536
1975-08-01	35.3205849268841
1975-09-01	35.8426966292135
1975-10-01	36.1391694725028
1975-11-01	37.4439461883408
1975-12-01	39.0817469204927
1976-01-01	39.9553571428571
1976-02-01	40.0000000000000
1976-03-01	38.5474860335196
1976-04-01	36.5962180200222
1976-05-01	35.5160932297447
1976-06-01	36.0000000000000
1976-07-01	35.4374307862680
1976-08-01	35.3266888150609
1976-09-01	34.9557522123894
1976-10-01	35.5408388520971
1976-11-01	37.3759647188534
1976-12-01	39.7577092511013
1977-01-01	40.8791208791209
1977-02-01	40.7692307692308
1977-03-01	39.7155361050328
1977-04-01	37.5956284153005
1977-05-01	36.2050163576881
1977-06-01	35.6209150326797
1977-07-01	35.9085963003264
1977-08-01	36.2649294245385
1977-09-01	36.1863488624052
1977-10-01	36.9047619047619
1977-11-01	36.7170626349892
1977-12-01	38.1877022653722
1978-01-01	40.8163265306122
1978-02-01	40.1498929336188
1978-03-01	38.6096256684492
1978-04-01	37.3532550693703
1978-05-01	34.9307774227902
1978-06-01	34.6112886048988
1978-07-01	36.1317747077577
1978-08-01	35.7370095440085
1978-09-01	35.4497354497354
1978-10-01	35.9408033826638
1978-11-01	36.4978902953586
1978-12-01	38.2105263157895
1979-01-01	39.7691500524659
1979-02-01	40.3141361256544
1979-03-01	38.4375000000000
1979-04-01	36.4583333333333
1979-05-01	35.0311850311850
1979-06-01	34.6473029045643
1979-07-01	35.1966873706004
1979-08-01	35.2637021716649
1979-09-01	35.9133126934985
1979-10-01	35.8024691358025
1979-11-01	36.8205128205128
1979-12-01	38.1780962128966
1980-01-01	40.3455284552846
1980-02-01	39.7565922920892
1980-03-01	37.3360242179617
1980-04-01	35.0100603621730
1980-05-01	35.1405622489960
1980-06-01	34.6346346346346
1980-07-01	34.9301397205589
1980-08-01	34.9601593625498
1980-09-01	35.4518371400199
1980-10-01	36.3366336633663
1980-11-01	37.5123395853899
1980-12-01	38.9763779527559
1981-01-01	40.1567091087169
1981-02-01	39.7073170731707
1981-03-01	38.2153249272551
1981-04-01	35.9420289855072
1981-05-01	35.6111645813282
1981-06-01	35.5086372360845
1981-07-01	36.1111111111111
1981-08-01	35.4684512428298
1981-09-01	35.7483317445186
1981-10-01	36.3377609108159
1981-11-01	37.2753074739830
1981-12-01	38.9255419415646
1982-01-01	40.5430711610487
1982-02-01	39.3656716417910
1982-03-01	37.1402042711235
1982-04-01	36.0853432282004
1982-05-01	34.6580406654344
1982-06-01	35.0553505535055
1982-07-01	35.2670349907919
1982-08-01	35.4128440366972
1982-09-01	36.3802559414991
1982-10-01	36.2807657247037
1982-11-01	37.0572207084469
1982-12-01	38.2940108892922
1983-01-01	38.4684684684685
1983-02-01	38.2959641255605
1983-03-01	37.5557537912578
1983-04-01	36.1209964412811
1983-05-01	34.4276841171251
1983-06-01	34.1592920353982
1983-07-01	34.8324514991182
1983-08-01	35.2063213345040
1983-09-01	34.7635726795096
1983-10-01	35.1610095735422
1983-11-01	36.0797918473547
1983-12-01	38.1158167675022
1984-01-01	39.7248495270851
1984-02-01	38.9554794520548
1984-03-01	37.2765957446809
1984-04-01	35.8778625954198
1984-05-01	35.7868020304569
1984-06-01	35.3288364249578
1984-07-01	35.8823529411765
1984-08-01	36.2950544844929
1984-09-01	35.7798165137615
1984-10-01	35.6666666666667
1984-11-01	37.0216306156406
1984-12-01	39.1376451077944
1985-01-01	39.8018166804294
1985-02-01	39.1268533772652
1985-03-01	37.2742200328407
1985-04-01	35.2170352170352
1985-05-01	34.7755102040816
1985-06-01	35.2653061224490
1985-07-01	35.9641985353946
1985-08-01	36.1201298701299
1985-09-01	35.6796116504854
1985-10-01	36.0258481421648
1985-11-01	37.5201288244766
1985-12-01	38.9558232931727
1986-01-01	39.6000000000000
1986-02-01	39.8089171974522
1986-03-01	38.1329113924051
1986-04-01	36.9291338582677
1986-05-01	36.2136684996072
1986-06-01	35.7927786499215
1986-07-01	35.7589984350548
1986-08-01	35.9314107560405
1986-09-01	35.7919254658385
1986-10-01	35.7364341085271
1986-11-01	36.9682907965971
1986-12-01	37.8670788253478
1987-01-01	38.9830508474576
1987-02-01	39.2171910974674
1987-03-01	38.2442748091603
1987-04-01	37.2429550647372
1987-05-01	35.3566009104704
1987-06-01	35.1739788199697
1987-07-01	36.2264150943396
1987-08-01	35.8433734939759
1987-09-01	35.4135338345865
1987-10-01	35.4525056095737
1987-11-01	36.4110201042442
1987-12-01	37.9464285714286
1988-01-01	38.4900074019245
1988-02-01	38.7168141592920
1988-03-01	37.4540103016924
1988-04-01	36.6372980910426
1988-05-01	35.8711566617862
1988-06-01	35.8449158741770
1988-07-01	36.1577794010226
1988-08-01	35.8132749817651
1988-09-01	35.3667392883079
1988-10-01	36.1856417693981
1988-11-01	37.2109826589595
1988-12-01	37.5722543352601
1989-01-01	38.4115523465704
1989-02-01	38.4449244060475
1989-03-01	36.8005738880918
1989-04-01	35.7449856733524
1989-05-01	35.2605281941470
1989-06-01	35.2815395580898
1989-07-01	35.2773826458037
1989-08-01	35.2022711142654
1989-09-01	35.2232459248760
1989-10-01	35.2441613588110
1989-11-01	35.5225988700565
1989-12-01	36.2544169611307
1990-01-01	37.9310344827586
1990-02-01	37.4736842105263
1990-03-01	35.6942496493689
1990-04-01	34.6638655462185
1990-05-01	34.1480446927374
1990-06-01	34.1480446927374
1990-07-01	33.6585365853658
1990-08-01	34.3988881167477
1990-09-01	34.4660194174757
1990-10-01	34.0940525587828
1990-11-01	34.7586206896552
1990-12-01	35.4037267080745
1991-01-01	36.1015785861359
1991-02-01	36.1396303901437
1991-03-01	34.4969199178645
1991-04-01	33.4473324213406
1991-05-01	33.3788395904437
1991-06-01	32.5835037491479
1991-07-01	32.6752893124574
1991-08-01	32.5628823929300
1991-09-01	32.8125000000000
1991-10-01	33.1521739130435
1991-11-01	33.7406653088934
1991-12-01	34.3750000000000
1992-01-01	34.8852901484480
1992-02-01	34.8821548821549
1992-03-01	34.2299932750504
1992-04-01	34.2741935483871
1992-05-01	33.6912751677852
1992-06-01	32.6858673811119
1992-07-01	33.4001336005344
1992-08-01	33.0440587449933
1992-09-01	32.5782811459027
1992-10-01	33.1337325349301
1992-11-01	33.2005312084993
1992-12-01	33.6206896551724
1993-01-01	34.9206349206349
1993-02-01	34.3667546174142
1993-03-01	33.7293729372937
1993-04-01	33.9050131926121
1993-05-01	32.5428194993412
1993-06-01	32.2346736980883
1993-07-01	32.5642715886618
1993-08-01	32.4983520105471
1993-09-01	32.7176781002639
1993-10-01	33.5973597359736
1993-11-01	34.1254125412541
1993-12-01	34.3461030383091
1994-01-01	35.2902374670185
1994-02-01	35.3988134475939
1994-03-01	34.4554455445545
1994-04-01	33.3994708994709
1994-05-01	33.2232496697490
1994-06-01	32.8486450760079
1994-07-01	32.7608982826948
1994-08-01	32.6948480845443
1994-09-01	33.4432717678100
1994-10-01	34.1013824884793
1994-11-01	34.2988808426596
1994-12-01	34.4305464121132
1995-01-01	35.1936966513460
1995-02-01	35.8688524590164
1995-03-01	34.0551181102362
1995-04-01	32.5901639344262
1995-05-01	32.8973185088293
1995-06-01	33.3115610711953
1995-07-01	33.5075114304376
1995-08-01	33.4856396866841
1995-09-01	32.6597131681877
1995-10-01	33.3767078724789
1995-11-01	33.9181286549708
1995-12-01	34.0909090909091
1996-01-01	35.1456310679612
1996-02-01	36.1990950226244
1996-03-01	35.2522639068564
1996-04-01	33.8292367399741
1996-05-01	33.0535829567463
1996-06-01	32.6675257731959
1996-07-01	32.4550128534704
1996-08-01	32.7774214239897
1996-09-01	32.5224071702945
1996-10-01	32.3754789272031
1996-11-01	32.8662420382166
1996-12-01	33.6513994910941
1997-01-01	34.6347607052897
1997-02-01	34.7580138277813
1997-03-01	33.8152105593966
1997-04-01	33.1238214959145
1997-05-01	32.3289391086001
1997-06-01	32.0802005012531
1997-07-01	31.9774718397998
1997-08-01	32.3952470293934
1997-09-01	33.2084893882647
1997-10-01	32.5639426076107
1997-11-01	32.9588014981273
1997-12-01	33.5620711166563
1998-01-01	33.8317757009346
1998-02-01	34.4313238036047
1998-03-01	33.4990677439403
1998-04-01	32.8154133001864
1998-05-01	31.7164179104478
1998-06-01	32.2160148975791
1998-07-01	32.3438466295609
1998-08-01	32.1406539173350
1998-09-01	32.4091189155884
1998-10-01	32.5953259532595
1998-11-01	33.3947206875384
1998-12-01	33.5174953959484
1999-01-01	33.5373317013464
1999-02-01	33.7813072693952
1999-03-01	32.9670329670330
1999-04-01	32.5609756097561
1999-05-01	32.1167883211679
1999-06-01	32.4209245742092
1999-07-01	32.7063106796116
1999-08-01	32.3440339188371
1999-09-01	31.9007263922518
1999-10-01	32.2249093107618
1999-11-01	33.2728372655777
1999-12-01	34.1197822141561
2000-01-01	34.0412621359223
2000-02-01	34.2233009708738
2000-03-01	34.1641337386018
2000-04-01	33.3130699088146
2000-05-01	33.1508515815085
2000-06-01	33.4753499695679
2000-07-01	33.6579427875837
2000-08-01	32.9275715155204
2000-09-01	32.1951219512195
2000-10-01	32.4175824175824
2000-11-01	33.7009803921569
2000-12-01	34.8252605763335
2001-01-01	34.6699568167798
2001-02-01	34.1795665634675
2001-03-01	33.7057728119181
2001-04-01	33.8518979464841
2001-05-01	34.1220423412204
2001-06-01	34.1843088418431
2001-07-01	34.0993788819876
2001-08-01	34.2023587833644
2001-09-01	33.8699690402477
2001-10-01	33.7037037037037
2001-11-01	34.4000000000000
2001-12-01	35.3628536285363
2002-01-01	34.7985347985348
2002-02-01	34.7349177330896
2002-03-01	34.4092570036541
2002-04-01	34.9148418491484
2002-05-01	34.4242424242424
2002-06-01	33.6956521739130
2002-07-01	34.3543543543544
2002-08-01	34.6499102333932
2002-09-01	34.1288782816229
2002-10-01	33.6898395721925
2002-11-01	34.7593582887700
2002-12-01	35.0741839762611
2003-01-01	34.7517730496454
2003-02-01	34.9411764705882
2003-03-01	34.0949033391916
2003-04-01	34.2690058479532
2003-05-01	34.4968004653869
2003-06-01	33.6421540243196
2003-07-01	33.7946943483276
2003-08-01	34.2528735632184
2003-09-01	33.6197021764032
2003-10-01	33.4284084426697
2003-11-01	33.7500000000000
2003-12-01	34.1643059490085
2004-01-01	34.9859154929577
2004-02-01	34.9438202247191
2004-03-01	34.1163310961969
2004-04-01	33.3518930957684
2004-05-01	34.1287458379578
2004-06-01	33.9977851605759
2004-07-01	33.4068357221610
2004-08-01	33.2784184514003
2004-09-01	33.4245076586433
2004-10-01	33.3878887070376
2004-11-01	33.8411316648531
2004-12-01	34.0379403794038
2005-01-01	33.6762317271251
2005-02-01	34.3969713358572
2005-03-01	34.1977309562399
2005-04-01	33.4592552617377
2005-05-01	33.0102315562736
2005-06-01	33.3512641204949
2005-07-01	32.9039184111648
2005-08-01	32.6727370112480
2005-09-01	32.4064171122995
2005-10-01	33.2264957264957
2005-11-01	33.5824879871863
2005-12-01	33.8658146964856
2006-01-01	33.7060702875399
2006-02-01	33.5284725918042
2006-03-01	33.3333333333333
2006-04-01	32.9255319148936
2006-05-01	31.8809776833156
2006-06-01	32.1125265392781
2006-07-01	32.6963906581741
2006-08-01	32.4309978768578
2006-09-01	32.0233669676049
2006-10-01	32.4827219564062
2006-11-01	32.3404255319149
2006-12-01	32.3404255319149
2007-01-01	32.3653643083421
2007-02-01	31.9429778247096
2007-03-01	32.1353065539112
2007-04-01	32.2768092974115
2007-05-01	31.1873350923483
2007-06-01	31.1873350923483
2007-07-01	31.2763713080169
2007-08-01	30.9071729957806
2007-09-01	31.1873350923483
2007-10-01	31.1345646437995
2007-11-01	30.9762532981530
2007-12-01	31.3984168865435
2008-01-01	31.6428948758584
2008-02-01	31.9238900634249
2008-03-01	31.5177154944474
2008-04-01	31.0417768376520
2008-05-01	30.2116402116402
2008-06-01	30.4071919619249
2008-07-01	31.0582010582011
2008-08-01	30.8628904182107
2008-09-01	30.4347826086956
2008-10-01	30.8550185873606
2008-11-01	31.0473152578416
2008-12-01	31.3829787234043
2009-01-01	31.2899786780384
2009-02-01	31.3934863854778
2009-03-01	31.3368983957219
2009-04-01	31.1194429566149
2009-05-01	30.6702412868633
2009-06-01	30.8681672025724
2009-07-01	31.1528150134048
2009-08-01	30.6702412868633
2009-09-01	30.4021447721180
2009-10-01	31.2064343163539
2009-11-01	31.3672922252011
2009-12-01	31.2433011789925
2010-01-01	31.0492505353319
2010-02-01	31.4239828693790
2010-03-01	31.3336904124264
2010-04-01	31.2466559657571
2010-05-01	30.8886509635974
2010-06-01	31.0695187165775
2010-07-01	31.3934863854778
2010-08-01	30.9663641217298
2010-09-01	30.0266666666667
2010-10-01	30.7569296375267
2010-11-01	31.4529004789782
2010-12-01	31.4194577352472
2011-01-01	31.3361611876988
2011-02-01	31.3922710428798
2011-03-01	30.6824288017195
2011-04-01	30.3648068669528
2011-05-01	30.2412868632708
2011-06-01	30.4021447721180
2011-07-01	31.1897106109325
2011-08-01	31.2399355877617
2011-09-01	31.8157755426151
2011-10-01	31.4422057264051
2011-11-01	31.0271420968600
2011-12-01	31.3265849760256
2012-01-01	31.8230277185501
2012-02-01	31.4804917156601
2012-03-01	31.5619967793881
2012-04-01	32.2927879440258
2012-05-01	31.6954643628510
2012-06-01	31.6359696641387
2012-07-01	31.9195214790647
2012-08-01	31.9672131147541
2012-09-01	32.0526893523600
2012-10-01	31.6427783902977
2012-11-01	30.9181415929204
2012-12-01	31.4301552106430
2013-01-01	31.2116136236739
2013-02-01	30.5493273542601
2013-03-01	30.2757456387169
2013-04-01	31.2252964426877
2013-05-01	31.0481586402266
2013-06-01	30.6992609437180
2013-07-01	30.6378132118451
2013-08-01	30.2285714285714
2013-09-01	30.1032110091743
2013-10-01	29.6722254169063
2013-11-01	29.1979226774380
2013-12-01	30.5378831694621
2014-01-01	29.7612114152592
2014-02-01	29.6317942723553
2014-03-01	29.3427230046948
2014-04-01	29.4879340788699
2014-05-01	29.1617473435655
2014-06-01	28.3767772511848
2014-07-01	28.7752675386445
2014-08-01	28.8610614192010
2014-09-01	28.5200718993409
2014-10-01	28.3052884615385
2014-11-01	28.4680337756333
2014-12-01	28.8135593220339
2015-01-01	28.2238442822384
2015-02-01	27.6998169615619
2015-03-01	27.9681762545900
2015-04-01	28.4313725490196
2015-05-01	28.3958205285802
2015-06-01	27.7093596059113
2015-07-01	27.2503082614057
2015-08-01	27.0871985157699
2015-09-01	26.6749379652605
2015-10-01	27.1144278606965
2015-11-01	27.5280898876404
2015-12-01	27.0337922403004
2016-01-01	27.0898805782527
2016-02-01	26.9400630914826
2016-03-01	26.6118836915297
2016-04-01	26.7257758074731
2016-05-01	26.7596702599873
2016-06-01	26.7301587301587
2016-07-01	26.4799490770210
2016-08-01	25.5414012738854
2016-09-01	25.0159540523293
2016-10-01	25.5754475703325
2016-11-01	26.3292761050609
2016-12-01	25.8499037844772
2017-01-01	25.1766217084136
2017-02-01	25.3865979381443
2017-03-01	25.4838709677419
2017-04-01	25.7272139625081
2017-05-01	24.7249190938511
2017-06-01	24.6921581335062
2017-07-01	24.7890979883193
2017-08-01	23.8961038961039
2017-09-01	23.1319038336582
2017-10-01	23.8776837996096
2017-11-01	24.0390879478827
2017-12-01	24.0547588005215
2018-01-01	23.6446766819072
2018-02-01	23.7410071942446
2018-03-01	23.3136869679109
2018-04-01	23.0013106159895
2018-05-01	23.0013106159895
2018-06-01	23.2786885245902
2018-07-01	23.3595800524934
2018-08-01	22.6377952755906
2018-09-01	22.1273801707157