Month	Percent
1968-01-01	47.0862470862471
1968-02-01	47.5547275267816
1968-03-01	45.4207345420735
1968-04-01	43.0890538033395
1968-05-01	41.3537320352341
1968-06-01	41.1574074074074
1968-07-01	42.1441774491682
1968-08-01	43.1010613751731
1968-09-01	43.0414746543779
1968-10-01	42.5551470588235
1968-11-01	43.1849472234970
1968-12-01	46.2173314993122
1969-01-01	48.2821804855703
1969-02-01	47.3275468250343
1969-03-01	45.4586946599726
1969-04-01	43.5675182481752
1969-05-01	42.4214838416022
1969-06-01	42.1363636363636
1969-07-01	43.2530667878237
1969-08-01	43.9963751699139
1969-09-01	42.9800724637681
1969-10-01	42.9669832654907
1969-11-01	43.9981949458484
1969-12-01	46.2302483069977
1970-01-01	48.0396575033799
1970-02-01	47.9495268138801
1970-03-01	45.9495949594960
1970-04-01	43.5759209344115
1970-05-01	42.2092501122586
1970-06-01	42.5302826379542
1970-07-01	43.1135038133692
1970-08-01	44.1954280591663
1970-09-01	43.6632333184057
1970-10-01	43.4704830053667
1970-11-01	45.3935599284436
1970-12-01	47.4485228290063
1971-01-01	48.6341244961935
1971-02-01	48.6559139784946
1971-03-01	45.9192825112108
1971-04-01	45.6989247311828
1971-05-01	44.9217002237136
1971-06-01	44.6827524575514
1971-07-01	44.8414470745869
1971-08-01	45.2762923351159
1971-09-01	45.9759893285905
1971-10-01	45.3818827708703
1971-11-01	45.4988913525499
1971-12-01	47.8280141843972
1972-01-01	48.5424028268551
1972-02-01	49.3832599118943
1972-03-01	48.0211081794195
1972-04-01	47.0149253731343
1972-05-01	45.3391684901532
1972-06-01	45.1528384279476
1972-07-01	45.4584775086505
1972-08-01	45.8225667527993
1972-09-01	45.5288048151333
1972-10-01	44.3779392902950
1972-11-01	45.5399061032864
1972-12-01	46.6524520255864
1973-01-01	47.5563110922227
1973-02-01	47.0313825275657
1973-03-01	46.4013547840813
1973-04-01	45.7612821594264
1973-05-01	45.0189155107188
1973-06-01	44.0670859538784
1973-07-01	44.6353730092204
1973-08-01	45.5532359081420
1973-09-01	44.9770737807420
1973-10-01	42.9463171036205
1973-11-01	44.4582814445828
1973-12-01	48.0928689883914
1974-01-01	48.6162742668319
1974-02-01	47.9389942291838
1974-03-01	47.2405271828666
1974-04-01	46.1001642036125
1974-05-01	45.3316953316953
1974-06-01	45.2837893017558
1974-07-01	46.2260301917585
1974-08-01	46.6666666666667
1974-09-01	46.5881397238018
1974-10-01	46.0665044606650
1974-11-01	46.8042071197411
1974-12-01	49.1107518189167
1975-01-01	50.6860371267151
1975-02-01	49.7382198952880
1975-03-01	48.6290322580645
1975-04-01	48.1317798312575
1975-05-01	46.1075441412520
1975-06-01	45.0360288230584
1975-07-01	45.7816873250700
1975-08-01	46.6666666666667
1975-09-01	46.4755077658303
1975-10-01	46.4200477326969
1975-11-01	47.1968190854871
1975-12-01	49.0670901151250
1976-01-01	49.9405940594059
1976-02-01	49.1297468354430
1976-03-01	48.1217872676947
1976-04-01	47.3538704581359
1976-05-01	46.2780622292241
1976-06-01	45.4187966968148
1976-07-01	45.6264775413712
1976-08-01	46.1145996860283
1976-09-01	45.5721003134796
1976-10-01	45.5185909980430
1976-11-01	46.6118292205249
1976-12-01	47.7903793508017
1977-01-01	48.4387197501952
1977-02-01	48.3820662768031
1977-03-01	47.3663675380414
1977-04-01	45.3198127925117
1977-05-01	44.2629327110074
1977-06-01	43.7839937839938
1977-07-01	44.1770186335404
1977-08-01	45.1162790697674
1977-09-01	44.4057297715834
1977-10-01	44.0789473684211
1977-11-01	45.0464396284830
1977-12-01	46.2461300309598
1978-01-01	47.4091260634184
1978-02-01	46.6924564796905
1978-03-01	45.8381726674410
1978-04-01	44.5773832497105
1978-05-01	42.8131021194605
1978-06-01	42.2573189522342
1978-07-01	43.4682080924856
1978-08-01	44.2093112735668
1978-09-01	43.5217224144560
1978-10-01	42.6594926979247
1978-11-01	43.7572032270457
1978-12-01	44.8673587081892
1979-01-01	45.2764976958525
1979-02-01	45.6046065259117
1979-03-01	45.2764976958525
1979-04-01	43.5099846390169
1979-05-01	42.2546012269939
1979-06-01	42.4683786891529
1979-07-01	42.8735632183908
1979-08-01	43.3716475095785
1979-09-01	43.0704441041348
1979-10-01	41.8836140888208
1979-11-01	42.9063097514340
1979-12-01	44.3212237093690
1980-01-01	45.1834862385321
1980-02-01	44.8948374760994
1980-03-01	44.5082280903176
1980-04-01	42.9281345565749
1980-05-01	42.0992366412214
1980-06-01	41.8542541014880
1980-07-01	42.5133689839572
1980-08-01	42.8625954198473
1980-09-01	42.3179565383149
1980-10-01	42.1875000000000
1980-11-01	42.6285714285714
1980-12-01	43.6474628004578
1981-01-01	44.9695121951220
1981-02-01	45.1809523809524
1981-03-01	44.1692073170732
1981-04-01	42.3340961098398
1981-05-01	41.4857142857143
1981-06-01	42.0411271896420
1981-07-01	42.1934501142422
1981-08-01	42.6017497147204
1981-09-01	42.1132649182820
1981-10-01	41.2770809578107
1981-11-01	41.2390725959711
1981-12-01	41.9969512195122
1982-01-01	43.1835491241432
1982-02-01	43.3624952453404
1982-03-01	42.5304878048780
1982-04-01	41.6380952380952
1982-05-01	40.8295281582953
1982-06-01	41.0110224249335
1982-07-01	41.7870722433460
1982-08-01	42.1791951404708
1982-09-01	40.9574468085106
1982-10-01	40.2429764616553
1982-11-01	41.2861491628615
1982-12-01	41.1047619047619
1983-01-01	41.6951729380464
1983-02-01	42.0752565564424
1983-03-01	41.1271896420411
1983-04-01	39.9314807765512
1983-05-01	39.2612338156893
1983-06-01	39.6197718631179
1983-07-01	39.8172820708032
1983-08-01	39.6348421453024
1983-09-01	39.1948347892138
1983-10-01	38.9121338912134
1983-11-01	39.9923896499239
1983-12-01	41.2571428571429
1984-01-01	41.9649657273420
1984-02-01	41.8445121951220
1984-03-01	40.8085430968726
1984-04-01	39.6722560975610
1984-05-01	38.9946686976390
1984-06-01	38.5904761904762
1984-07-01	39.0476190476190
1984-08-01	39.5587675922404
1984-09-01	38.5404789053592
1984-10-01	37.9612019779384
1984-11-01	38.8973384030418
1984-12-01	40.2439024390244
1985-01-01	40.8606245239909
1985-02-01	40.7689379520365
1985-03-01	40.4036557501904
1985-04-01	38.9016018306636
1985-05-01	38.3384146341463
1985-06-01	38.5289634146342
1985-07-01	38.8190476190476
1985-08-01	39.0160183066362
1985-09-01	38.0517503805175
1985-10-01	37.9375951293760
1985-11-01	38.7832699619772
1985-12-01	40.6321401370906
1986-01-01	40.4417364813404
1986-02-01	40.0684931506849
1986-03-01	39.5198170731707
1986-04-01	38.1242851696531
1986-05-01	37.8967495219885
1986-06-01	37.7293577981651
1986-07-01	38.1006864988558
1986-08-01	38.5289634146342
1986-09-01	38.3853769992384
1986-10-01	38.2095238095238
1986-11-01	38.6493704692865
1986-12-01	39.8625429553265
1987-01-01	40.3435114503817
1987-02-01	40.0152730049637
1987-03-01	39.0839694656489
1987-04-01	37.3806796487209
1987-05-01	37.1701720841300
1987-06-01	37.2413793103448
1987-07-01	37.7199693955624
1987-08-01	38.1679389312977
1987-09-01	37.8625954198473
1987-10-01	37.8915202444614
1987-11-01	37.8295758502102
1987-12-01	38.3467278989667
1988-01-01	39.0057361376673
1988-02-01	38.9590508993494
1988-03-01	38.3378016085791
1988-04-01	36.9307309605817
1988-05-01	36.1514919663351
1988-06-01	36.4750957854406
1988-07-01	36.5237366003063
1988-08-01	37.3803140559173
1988-09-01	37.2751626482970
1988-10-01	37.3328238440963
1988-11-01	37.4045801526718
1988-12-01	37.5766871165644
1989-01-01	38.3435582822086
1989-02-01	37.8544061302682
1989-03-01	37.2458764863828
1989-04-01	36.0983102918587
1989-05-01	35.1745301112390
1989-06-01	35.2377300613497
1989-07-01	35.7826253348641
1989-08-01	36.4818355640535
1989-09-01	36.1864730607566
1989-10-01	35.8180428134557
1989-11-01	35.8071920428462
1989-12-01	36.4611260053619
1990-01-01	36.3462274990425
1990-02-01	35.9984697781178
1990-03-01	35.9141433499425
1990-04-01	35.3008815638176
1990-05-01	34.5948012232416
1990-06-01	34.6345197091466
1990-07-01	35.5147340221967
1990-08-01	35.9434682964095
1990-09-01	34.8970251716247
1990-10-01	35.2649637819291
1990-11-01	35.2177234530176
1990-12-01	35.6185369590195
1991-01-01	35.6431852986217
1991-02-01	35.4677914110429
1991-03-01	35.4541970103488
1991-04-01	34.9060222477944
1991-05-01	34.1913177103342
1991-06-01	33.9347408829175
1991-07-01	34.8042977743668
1991-08-01	34.8426707597851
1991-09-01	34.2670759785111
1991-10-01	34.1397849462366
1991-11-01	33.6793540945790
1991-12-01	34.3220338983051
1992-01-01	35.7692307692308
1992-02-01	35.1631477927063
1992-03-01	35.0230414746544
1992-04-01	34.3713956170704
1992-05-01	33.8579654510557
1992-06-01	33.7806748466258
1992-07-01	34.8026063625910
1992-08-01	35.0689127105666
1992-09-01	34.2769701606733
1992-10-01	33.1802525832377
1992-11-01	33.2695252679939
1992-12-01	34.2418426103647
1993-01-01	35.4517611026034
1993-02-01	36.2940275650842
1993-03-01	35.7991567650441
1993-04-01	34.4959754695286
1993-05-01	33.9456563337160
1993-06-01	34.1622035195103
1993-07-01	34.9503437738732
1993-08-01	35.0381679389313
1993-09-01	34.6168509340450
1993-10-01	33.9687380861609
1993-11-01	33.8028169014084
1993-12-01	34.3499809378574
1994-01-01	35.1732013703845
1994-02-01	35.8066971080670
1994-03-01	35.5919299581271
1994-04-01	33.8033536585366
1994-05-01	33.1178707224335
1994-06-01	33.5866261398176
1994-07-01	34.6372958602355
1994-08-01	35.4324734446130
1994-09-01	34.6358118361153
1994-10-01	33.9272175890826
1994-11-01	34.4448654793482
1994-12-01	35.8633776091082
1995-01-01	35.5816597195908
1995-02-01	35.3566009104704
1995-03-01	35.4459203036053
1995-04-01	34.4224924012158
1995-05-01	33.8385752178856
1995-06-01	33.6109008327025
1995-07-01	34.4958301743745
1995-08-01	35.1760696705793
1995-09-01	34.1408024224073
1995-10-01	34.3040847201210
1995-11-01	34.8467650397276
1995-12-01	35.2785145888594
1996-01-01	35.2006056018168
1996-02-01	35.3653918970087
1996-03-01	34.3442001516300
1996-04-01	33.7001897533207
1996-05-01	33.9015151515152
1996-06-01	33.4721696327149
1996-07-01	33.7878787878788
1996-08-01	34.6954218690882
1996-09-01	33.5476550680787
1996-10-01	33.3333333333333
1996-11-01	34.1776937618147
1996-12-01	34.6358118361153
1997-01-01	34.1140914242539
1997-02-01	33.9008702232312
1997-03-01	33.8251986379115
1997-04-01	33.1188493565481
1997-05-01	32.7664399092971
1997-06-01	32.3396226415094
1997-07-01	33.1443688586546
1997-08-01	33.6607480166226
1997-09-01	32.4405884571860
1997-10-01	32.3152337858220
1997-11-01	33.6473247927656
1997-12-01	33.7490551776266
1998-01-01	33.4715416509612
1998-02-01	33.9864355689525
1998-03-01	33.6099585062241
1998-04-01	33.2579185520362
1998-05-01	32.8066215199398
1998-06-01	32.6185101580135
1998-07-01	33.5214446952596
1998-08-01	33.1954887218045
1998-09-01	32.7825760420578
1998-10-01	32.7825760420578
1998-11-01	33.2331956440105
1998-12-01	34.3632253202713
1999-01-01	34.6486283352123
1999-02-01	34.4607290492296
1999-03-01	33.6343115124154
1999-04-01	32.9815303430079
1999-05-01	33.1200602182913
1999-06-01	33.1826741996234
1999-07-01	33.5840541556976
1999-08-01	33.1205407435223
1999-09-01	32.7074727750657
1999-10-01	33.0581613508443
1999-11-01	32.9208848893888
1999-12-01	34.0968832144198
2000-01-01	34.4814676151254
2000-02-01	34.5291479820628
2000-03-01	34.3820224719101
2000-04-01	32.8710644677661
2000-05-01	32.5476992143659
2000-06-01	32.5981308411215
2000-07-01	33.0593948449757
2000-08-01	33.3457804331591
2000-09-01	33.5447761194030
2000-10-01	33.3333333333333
2000-11-01	32.7502791216971
2000-12-01	33.6309523809524
2001-01-01	32.8874024526198
2001-02-01	32.7380952380952
2001-03-01	33.6302895322940
2001-04-01	33.0363771343727
2001-05-01	32.2592592592593
2001-06-01	32.0621991854869
2001-07-01	32.7286190299889
2001-08-01	33.1606217616580
2001-09-01	32.8026656793780
2001-10-01	32.4454310025897
2001-11-01	31.6703621581670
2001-12-01	32.6787699147832
2002-01-01	33.5687732342007
2002-02-01	33.1347728965004
2002-03-01	32.8358208955224
2002-04-01	32.6599326599327
2002-05-01	32.6987681970885
2002-06-01	32.6241134751773
2002-07-01	32.7470059880240
2002-08-01	32.8710644677661
2002-09-01	32.2471910112360
2002-10-01	31.6972648932184
2002-11-01	31.3696060037523
2002-12-01	32.4548192771084
2003-01-01	33.1198191409194
2003-02-01	33.5222978080121
2003-03-01	32.5642965204236
2003-04-01	32.2849564228875
2003-05-01	31.4155942467827
2003-06-01	31.3020439061317
2003-07-01	31.9818112921561
2003-08-01	32.2592873388931
2003-09-01	32.2078907435508
2003-10-01	31.4470186099506
2003-11-01	31.7351598173516
2003-12-01	32.3147440794500
2004-01-01	32.4675324675325
2004-02-01	32.5172149961744
2004-03-01	32.1592649310873
2004-04-01	32.0183837610111
2004-05-01	31.5567484662577
2004-06-01	31.3846153846154
2004-07-01	31.5242494226328
2004-08-01	31.3030069390902
2004-09-01	31.3778463913547
2004-10-01	31.0836868492094
2004-11-01	32.0324574961360
2004-12-01	32.4408226620101
2005-01-01	32.1317829457364
2005-02-01	32.1442419542458
2005-03-01	31.8570318570319
2005-04-01	31.1647837943124
2005-05-01	30.1982122036533
2005-06-01	30.6464174454829
2005-07-01	30.6281701131487
2005-08-01	31.1647837943124
2005-09-01	30.5144193296960
2005-10-01	30.0936768149883
2005-11-01	31.3671875000000
2005-12-01	31.9357366771160
2006-01-01	31.5170521364171
2006-02-01	31.4633189486073
2006-03-01	31.5025500196155
2006-04-01	30.5785123966942
2006-05-01	29.6543597800471
2006-06-01	30.4279544562230
2006-07-01	30.7631785995279
2006-08-01	29.9488390397481
2006-09-01	29.8859614628392
2006-10-01	29.9488390397481
2006-11-01	30.3697875688434
2006-12-01	31.0303987366759
2007-01-01	31.2722948870392
2007-02-01	31.1358220810167
2007-03-01	30.4727850615812
2007-04-01	29.4749403341289
2007-05-01	28.5884691848907
2007-06-01	29.3836978131213
2007-07-01	30.0278773397053
2007-08-01	29.9482277976902
2007-09-01	29.8406374501992
2007-10-01	29.3625498007968
2007-11-01	28.9872408293461
2007-12-01	29.4984076433121
2008-01-01	30.2594810379242
2008-02-01	30.4278288684526
2008-03-01	30.0400000000000
2008-04-01	29.6073717948718
2008-05-01	29.2682926829268
2008-06-01	29.1600000000000
2008-07-01	29.3200000000000
2008-08-01	29.6637309847878
2008-09-01	29.3034427542034
2008-10-01	29.2184368737475
2008-11-01	28.5542651181418
2008-12-01	28.8692862870890
2009-01-01	29.0478103656087
2009-02-01	29.1800643086817
2009-03-01	29.5299316994777
2009-04-01	29.0996784565916
2009-05-01	28.8299155609168
2009-06-01	28.8585209003215
2009-07-01	28.9103337354242
2009-08-01	27.9453156413349
2009-09-01	27.4849094567404
2009-10-01	27.8582930756844
2009-11-01	28.1287726358149
2009-12-01	28.7152637937978
2010-01-01	28.9632916498588
2010-02-01	28.8368336025848
2010-03-01	28.9005658852061
2010-04-01	28.2362459546926
2010-05-01	27.8900565885206
2010-06-01	28.5541195476575
2010-07-01	28.3057015770319
2010-08-01	28.0290791599354
2010-09-01	27.1440129449838
2010-10-01	27.3645917542441
2010-11-01	27.9822078447230
2010-12-01	28.9292929292929
2011-01-01	28.8142452448401
2011-02-01	28.3690813435856
2011-03-01	27.9622796227962
2011-04-01	27.5975359342916
2011-05-01	27.3995077932732
2011-06-01	27.0901639344262
2011-07-01	27.5706677591151
2011-08-01	27.7252159605101
2011-09-01	27.4206672091131
2011-10-01	27.1840715156440
2011-11-01	27.5904104022755
2011-12-01	28.5481903212688
2012-01-01	28.8204296716660
2012-02-01	28.5714285714286
2012-03-01	28.4266017842660
2012-04-01	27.5385865150284
2012-05-01	26.9512195121951
2012-06-01	27.2136474411048
2012-07-01	27.7935798455912
2012-08-01	28.2228548190321
2012-09-01	27.4796747967480
2012-10-01	26.9918699186992
2012-11-01	27.2875152501017
2012-12-01	27.9202279202279
2013-01-01	27.4581803345573
2013-02-01	26.9795918367347
2013-03-01	26.9387755102041
2013-04-01	26.0727421332244
2013-05-01	25.8169934640523
2013-06-01	26.3071895424837
2013-07-01	26.6557645134914
2013-08-01	26.6148814390842
2013-09-01	25.8077709611452
2013-10-01	25.2657399836468
2013-11-01	25.4805725971370
2013-12-01	25.6651657797790
2014-01-01	26.1582615826158
2014-02-01	26.0780287474333
2014-03-01	26.2725779967159
2014-04-01	25.9563965446318
2014-05-01	25.2055921052632
2014-06-01	25.2674897119342
2014-07-01	25.3909465020576
2014-08-01	25.5555555555556
2014-09-01	24.6603540551667
2014-10-01	24.1137675185491
2014-11-01	24.5259686727123
2014-12-01	24.8659793814433
2015-01-01	25.4958677685950
2015-02-01	25.0826446280992
2015-03-01	25.1135894258571
2015-04-01	25.6823821339950
2015-05-01	24.7204968944099
2015-06-01	24.0595287308805
2015-07-01	24.5650372825186
2015-08-01	24.6581019477828
2015-09-01	23.9022369511185
2015-10-01	23.7779618889809
2015-11-01	24.2750621375311
2015-12-01	24.6473029045643
2016-01-01	23.9933582399336
2016-02-01	24.6153846153846
2016-03-01	24.6358718268831
2016-04-01	24.1767403084619
2016-05-01	24.1250000000000
2016-06-01	23.1666666666667
2016-07-01	23.1153685964182
2016-08-01	23.5613010842369
2016-09-01	23.3820459290188
2016-10-01	23.2790988735920
2016-11-01	22.8201919065499
2016-12-01	22.9611041405270
2017-01-01	23.2664995822891
2017-02-01	23.7358963643962
2017-03-01	23.5564853556485
2017-04-01	22.9673093042749
2017-05-01	22.4737945492662
2017-06-01	22.0871751886002
2017-07-01	22.4874371859296
2017-08-01	22.5671140939597
2017-09-01	22.0310532941670
2017-10-01	21.8815623687526
2017-11-01	21.2935741285174
2017-12-01	21.6238956668069
2018-01-01	22.0396123050990
2018-02-01	21.8381112984823
2018-03-01	21.2658227848101
2018-04-01	20.8192567567568
2018-05-01	21.2837837837838
2018-06-01	21.2658227848101
2018-07-01	20.9302325581395
2018-08-01	20.9233375688268
2018-09-01	20.3131612357173