Month	Percent
1978-02-01	49.4342622133709
1978-03-01	49.0765863482151
1978-04-01	49.0795678294446
1978-05-01	49.3095654342922
1978-06-01	49.6880565540902
1978-07-01	49.4892034192810
1978-08-01	49.6685146710327
1978-09-01	49.7106907286066
1978-10-01	49.7817401195807
1978-11-01	49.7808503614123
1978-12-01	48.6026164883880
1979-01-01	50.9148923726115
1979-02-01	49.3841581331361
1979-03-01	48.9643420964541
1979-04-01	49.2712099899031
1979-05-01	49.8744793316482
1979-06-01	49.7448864308848
1979-07-01	49.6698123347449
1979-08-01	50.2304741089658
1979-09-01	49.0133652349529
1979-10-01	48.8601935968723
1979-11-01	48.7119022371212
1979-12-01	48.0476987304813
1980-01-01	50.1426420983953
1980-02-01	48.2394756120415
1980-03-01	47.3884667649142
1980-04-01	48.1852804547260
1980-05-01	48.0042678568020
1980-06-01	47.9375689683291
1980-07-01	47.6756976291608
1980-08-01	48.0521455547013
1980-09-01	47.0992474258760
1980-10-01	48.0501325316170
1980-11-01	47.8885701375535
1980-12-01	47.0937171599793
1981-01-01	49.6637238576979
1981-02-01	48.1840993684915
1981-03-01	47.2811294604839
1981-04-01	47.6062310543674
1981-05-01	47.9499169307256
1981-06-01	48.2175783012063
1981-07-01	47.9636224773574
1981-08-01	48.3189533707958
1981-09-01	46.9147320819042
1981-10-01	47.6667651110391
1981-11-01	47.8039265817461
1981-12-01	46.9584566678880
1982-01-01	49.2170063749245
1982-02-01	47.6027994525843
1982-03-01	46.7645426071709
1982-04-01	47.8518233678255
1982-05-01	47.8244175811159
1982-06-01	48.2315538752055
1982-07-01	48.2866462245135
1982-08-01	48.7074923970141
1982-09-01	47.7956936866719
1982-10-01	47.6125212878112
1982-11-01	47.8904756504552
1982-12-01	47.0129675739856
1983-01-01	49.6864656142144
1983-02-01	47.5490690293466
1983-03-01	46.7849643556742
1983-04-01	48.0037229797508
1983-05-01	47.5877435089374
1983-06-01	48.1025166157571
1983-07-01	47.9547615473152
1983-08-01	48.4956558940302
1983-09-01	47.0337138772756
1983-10-01	47.9471807390389
1983-11-01	47.5640537810706
1983-12-01	46.6718273955102
1984-01-01	49.2844496608248
1984-02-01	47.4301358541247
1984-03-01	45.9280879881423
1984-04-01	46.2908176509404
1984-05-01	46.9091117777901
1984-06-01	46.8551259095886
1984-07-01	47.1660242633084
1984-08-01	47.8088458180342
1984-09-01	46.1782066750250
1984-10-01	46.9322651214809
1984-11-01	46.5894458315667
1984-12-01	45.7043501442730
1985-01-01	48.2030934978605
1985-02-01	45.7859749459064
1985-03-01	44.8935019917753
1985-04-01	46.4309453867101
1985-05-01	45.8207438441292
1985-06-01	45.8536841450326
1985-07-01	45.8265784175344
1985-08-01	46.3088549482166
1985-09-01	44.8804096369215
1985-10-01	45.6396101762402
1985-11-01	44.4403273835370
1985-12-01	43.8052517591929
1986-01-01	46.1061785161172
1986-02-01	43.7253161833633
1986-03-01	42.7005297337522
1986-04-01	42.6265087250835
1986-05-01	42.9135151051311
1986-06-01	43.2857821127312
1986-07-01	42.9323964704441
1986-08-01	43.9322163006021
1986-09-01	42.4470399127000
1986-10-01	42.8495087822171
1986-11-01	42.7525014133205
1986-12-01	41.8683821184826
1987-01-01	44.5637225329718
1987-02-01	42.4296587303476
1987-03-01	41.0473650241313
1987-04-01	41.7926778509428
1987-05-01	42.2151146842199
1987-06-01	42.6012410782739
1987-07-01	42.2663950922790
1987-08-01	43.1308201437215
1987-09-01	42.1503161739979
1987-10-01	42.4284014094565
1987-11-01	42.4173086905839
1987-12-01	40.9675450121784
1988-01-01	42.9899265091202
1988-02-01	41.8121095121806
1988-03-01	40.0768137809738
1988-04-01	40.4346390892977
1988-05-01	41.0601477690707
1988-06-01	41.3640390357883
1988-07-01	42.0933551412610
1988-08-01	41.7171510098640
1988-09-01	40.2282273537444
1988-10-01	41.2914930822095
1988-11-01	40.9903482410977
1988-12-01	39.5843175997113
1989-01-01	41.6838775741216
1989-02-01	39.9765460748837
1989-03-01	39.4648822864030
1989-04-01	39.5008724815350
1989-05-01	38.9998394716139
1989-06-01	39.6699513224652
1989-07-01	39.6217317861332
1989-08-01	39.8567527413257
1989-09-01	38.3543325602845
1989-10-01	39.3088406096996
1989-11-01	38.6975541520614
1989-12-01	37.8259534228703
1990-01-01	40.1397661227859
1990-02-01	38.1465091827924
1990-03-01	37.8177646672332
1990-04-01	38.0642532886859
1990-05-01	37.7914543787750
1990-06-01	37.9628777037893
1990-07-01	37.8550641871337
1990-08-01	38.5310221460657
1990-09-01	37.6072274403655
1990-10-01	38.4938201913913
1990-11-01	38.3101248891090
1990-12-01	37.1092554639954
1991-01-01	39.6616763104800
1991-02-01	38.0524383178406
1991-03-01	37.6344274061451
1991-04-01	37.3220768321555
1991-05-01	37.8274110866183
1991-06-01	38.5885150064887
1991-07-01	39.1567879315542
1991-08-01	38.8227558887604
1991-09-01	37.5306240510364
1991-10-01	39.1181557497934
1991-11-01	39.0674923159264
1991-12-01	37.5037454534167
1992-01-01	39.4436208974774
1992-02-01	37.9157195924432
1992-03-01	37.7180847451088
1992-04-01	38.1778821866545
1992-05-01	38.4152618238567
1992-06-01	38.3113993048081
1992-07-01	38.2447722743654
1992-08-01	38.6851903207545
1992-09-01	37.4612090918073
1992-10-01	38.3035095501274
1992-11-01	38.7454485669512
1992-12-01	37.3405154395563
1993-01-01	39.2679119263395
1993-02-01	38.3649690980222
1993-03-01	37.7793841144548
1993-04-01	39.1602074257424
1993-05-01	38.7888038205208
1993-06-01	38.8734927669883
1993-07-01	39.0712731618838
1993-08-01	39.0362574385940
1993-09-01	37.4348244260349
1993-10-01	37.9049358449724
1993-11-01	37.6805923845719
1993-12-01	36.9320136761914
1994-01-01	38.9052658601025
1994-02-01	37.2177974108581
1994-03-01	36.8475302966274
1994-04-01	37.5320209683073
1994-05-01	37.5345660654225
1994-06-01	37.5855511782369
1994-07-01	37.0325205182975
1994-08-01	38.1119372396778
1994-09-01	35.7185262563533
1994-10-01	37.3228221156564
1994-11-01	37.0319940195430
1994-12-01	35.8709172520879
1995-01-01	38.0780181005408
1995-02-01	36.2212641977514
1995-03-01	35.7461789779185
1995-04-01	36.1580496936376
1995-05-01	36.0604374318742
1995-06-01	35.8599475383476
1995-07-01	36.0395521556699
1995-08-01	36.4630206321593
1995-09-01	35.2858764977361
1995-10-01	35.9292158866728
1995-11-01	35.2103906024552
1995-12-01	34.7376409010103
1996-01-01	36.6713285495728
1996-02-01	35.4177240324599
1996-03-01	35.1425029974940
1996-04-01	35.9244859900562
1996-05-01	35.6702945511433
1996-06-01	35.9889699663419
1996-07-01	35.7291281819893
1996-08-01	36.1642077582152
1996-09-01	35.0121105080862
1996-10-01	35.8139998319590
1996-11-01	36.1654690645476
1996-12-01	34.7756963986345
1997-01-01	36.7692064109069
1997-02-01	35.1836258693513
1997-03-01	35.3598218991233
1997-04-01	35.6982540366703
1997-05-01	35.9433508006956
1997-06-01	36.2483990873308
1997-07-01	36.1693244224569
1997-08-01	37.0367906740419
1997-09-01	35.1441465478366
1997-10-01	36.4290124761139
1997-11-01	35.9762048049166
1997-12-01	35.4106548488992
1998-01-01	37.3507862136021
1998-02-01	35.9825513888114
1998-03-01	35.8092656977889
1998-04-01	35.8630885179596
1998-05-01	36.0434592424424
1998-06-01	35.8001557639218
1998-07-01	35.7815628261104
1998-08-01	36.3929120589512
1998-09-01	34.6732912714443
1998-10-01	35.7011889573502
1998-11-01	35.9367199949554
1998-12-01	34.9528983577409
1999-01-01	37.1272068129621
1999-02-01	35.8949175937186
1999-03-01	35.7232540114165
1999-04-01	35.9213554344415
1999-05-01	36.1379728616511
1999-06-01	36.1672072125141
1999-07-01	36.1110219869928
1999-08-01	36.7354388355738
1999-09-01	34.7216661698401
1999-10-01	35.5741169893606
1999-11-01	35.5822424120996
1999-12-01	34.3527625624127
2000-01-01	36.7200679396852
2000-02-01	35.0774190249978
2000-03-01	34.5583072119172
2000-04-01	34.5607176542697
2000-05-01	34.7052366947927
2000-06-01	34.6491816508778
2000-07-01	34.3236509288105
2000-08-01	34.6985053581367
2000-09-01	33.5787094846473
2000-10-01	34.8373286798689
2000-11-01	35.1997914126708
2000-12-01	34.0031474338474
2001-01-01	35.9994245187817
2001-02-01	34.2532057692843
2001-03-01	34.0931477728245
2001-04-01	33.4487903255981
2001-05-01	33.6692077052307
2001-06-01	33.6945118002092
2001-07-01	34.2784394005385
2001-08-01	34.4324128801341
2001-09-01	33.4095523662154
2001-10-01	33.9985729378541
2001-11-01	34.1849285860946
2001-12-01	33.2990727429802
2002-01-01	34.4789679216686
2002-02-01	33.8076426190121
2002-03-01	33.9595107386348
2002-04-01	34.4767125709393
2002-05-01	34.4832628614949
2002-06-01	34.0236747146835
2002-07-01	34.4563991920605
2002-08-01	34.2331813823438
2002-09-01	32.7548511550216
2002-10-01	33.8146309547743
2002-11-01	33.3792099589229
2002-12-01	32.2769161155385
2003-01-01	33.3282761976006
2003-02-01	32.2103367864889
2003-03-01	32.5561015127567
2003-04-01	32.8957742633165
2003-05-01	32.6113601967748
2003-06-01	32.9560434177468
2003-07-01	33.4938306383868
2003-08-01	33.7665484213027
2003-09-01	32.3919234135816
2003-10-01	33.3800413655615
2003-11-01	33.4950597836811
2003-12-01	32.6534097030028
2004-01-01	34.3567998658408
2004-02-01	33.3298071210354
2004-03-01	33.0875905693134
2004-04-01	33.4288220504032
2004-05-01	33.3185608352729
2004-06-01	33.4658121535249
2004-07-01	33.5964712917945
2004-08-01	33.9340419839688
2004-09-01	32.5458116422643
2004-10-01	33.0794264362197
2004-11-01	33.1356558535161
2004-12-01	31.8920525494393
2005-01-01	33.1624273992172
2005-02-01	31.9892553650070
2005-03-01	31.4755448945037
2005-04-01	31.8749698011127
2005-05-01	31.7287929876167
2005-06-01	31.6816430060876
2005-07-01	31.9578297672804
2005-08-01	32.2665376270459
2005-09-01	31.0312278346620
2005-10-01	31.7763600231542
2005-11-01	31.9052239258351
2005-12-01	30.8837818704359
2006-01-01	32.2801924025004
2006-02-01	31.4499602237409
2006-03-01	31.1790622559258
2006-04-01	31.4059167513519
2006-05-01	30.9819978939760
2006-06-01	30.9594801830957
2006-07-01	31.2970175848020
2006-08-01	31.5148977833829
2006-09-01	30.0367498813823
2006-10-01	31.3428605322392
2006-11-01	31.3381513742277
2006-12-01	29.7807215286232
2007-01-01	31.5898780493951
2007-02-01	30.4642537482897
2007-03-01	30.5186486584581
2007-04-01	30.8166971271443
2007-05-01	30.5962079688718
2007-06-01	30.7683453335084
2007-07-01	31.0014657434112
2007-08-01	31.1398526336094
2007-09-01	29.7098897936914
2007-10-01	30.4557967668814
2007-11-01	30.5107433941694
2007-12-01	29.3553373399571
2008-01-01	30.8621345368827
2008-02-01	29.9829892359994
2008-03-01	30.0669147564010
2008-04-01	29.7836362103962
2008-05-01	30.0106254466148
2008-06-01	29.9595315607900
2008-07-01	30.1068042696866
2008-08-01	30.5384877248190
2008-09-01	29.5215909681220
2008-10-01	30.1090116012300
2008-11-01	30.2734964510466
2008-12-01	29.3281100015273
2009-01-01	30.5160157645128
2009-02-01	28.9561918495090
2009-03-01	29.0640605563403
2009-04-01	29.6105007484178
2009-05-01	29.4848272582395
2009-06-01	29.8442670316260
2009-07-01	30.2514662617521
2009-08-01	30.8859942640782
2009-09-01	29.6684004976046
2009-10-01	30.2111442305763
2009-11-01	30.3968364579380
2009-12-01	29.3265299889648
2010-01-01	30.8187251259938
2010-02-01	30.0948947329173
2010-03-01	30.0210785711321
2010-04-01	30.2758676399259
2010-05-01	30.3126337147313
2010-06-01	30.2315710908492
2010-07-01	30.2177651667568
2010-08-01	30.5011327515889
2010-09-01	29.3430419638482
2010-10-01	29.7047420766376
2010-11-01	29.8651154301626
2010-12-01	28.9719134154549
2011-01-01	30.4166325809121
2011-02-01	29.4834949249707
2011-03-01	29.0962812278246
2011-04-01	29.6976647252005
2011-05-01	29.5439019725333
2011-06-01	29.4769627143340
2011-07-01	29.6562015700461
2011-08-01	29.9970733217990
2011-09-01	28.7292604478059
2011-10-01	29.5013962028295
2011-11-01	29.7668440106898
2011-12-01	29.1918726779805
2012-01-01	30.5415565368433
2012-02-01	29.4766251953479
2012-03-01	28.9461868403187
2012-04-01	29.6665900674333
2012-05-01	29.0601064050009
2012-06-01	29.6148590682118
2012-07-01	29.7896476484245
2012-08-01	30.5457690342294
2012-09-01	28.8259902274712
2012-10-01	29.6898406370586
2012-11-01	30.0154889385761
2012-12-01	29.1068574405107
2013-01-01	30.2458718404978
2013-02-01	29.1369188513446
2013-03-01	29.0892183390505
2013-04-01	29.0660144644863
2013-05-01	29.4598051741737
2013-06-01	29.4217881261161
2013-07-01	29.9630286952294
2013-08-01	30.1555136878820
2013-09-01	28.9869837183061
2013-10-01	29.6256502964906
2013-11-01	29.9708010314917
2013-12-01	29.4209199305616
2014-01-01	30.3548264699728
2014-02-01	29.1400383615412
2014-03-01	28.9342078292076
2014-04-01	29.5481742771682
2014-05-01	29.2757188352681
2014-06-01	29.4481921174099
2014-07-01	29.5259358320909
2014-08-01	29.3650434245514
2014-09-01	29.6396478627528
2014-10-01	29.5686635610484
2014-11-01	29.9213785041820
2014-12-01	28.7162584450970
2015-01-01	30.1450256932449
2015-02-01	28.4417671914396
2015-03-01	28.8804526924699
2015-04-01	28.9046095656365
2015-05-01	28.7027127730769
2015-06-01	28.8683748251642
2015-07-01	28.6020071353139
2015-08-01	29.1444259163433
2015-09-01	28.8713337293112
2015-10-01	28.5570779301943
2015-11-01	28.0970116750173
2015-12-01	27.6367704085781
2016-01-01	29.1257168406038
2016-02-01	27.6405205725042
2016-03-01	28.1142053593378
2016-04-01	28.1394640771676
2016-05-01	28.1179954301550
2016-06-01	28.0613655771258
2016-07-01	28.4035957739301
2016-08-01	29.0336530205296
2016-09-01	28.7317329237909
2016-10-01	28.8487809084517
2016-11-01	28.3505943702684
2016-12-01	27.7756812948176
2017-01-01	29.0163238196410
2017-02-01	27.8465086017324
2017-03-01	27.7302399231890
2017-04-01	27.9058433084600
2017-05-01	27.6615092644488
2017-06-01	27.5712616950424
2017-07-01	27.9402300190273
2017-08-01	27.8250445115371
2017-09-01	27.4841363339143
2017-10-01	27.5253060844307
2017-11-01	27.0231583426400
2017-12-01	26.1614792413179
2018-01-01	27.5524903831487
2018-02-01	26.1135501188315
2018-03-01	26.4978150854962
2018-04-01	26.7057263990990
2018-05-01	26.5340795240353
2018-06-01	26.5568916689376
2018-07-01	27.0937191434718
2018-08-01	27.1151826358570
2018-09-01	27.1909566042388