Month	Percent
1978-02-01	25.1918462215077
1978-03-01	25.3750277125129
1978-04-01	26.3908184752245
1978-05-01	26.7817272504552
1978-06-01	27.0539320620744
1978-07-01	27.4678620013745
1978-08-01	28.0472207742030
1978-09-01	28.1649608574406
1978-10-01	29.1501486622283
1978-11-01	29.9015187117493
1978-12-01	29.1342830416188
1979-01-01	30.3502078751371
1979-02-01	29.5167000251769
1979-03-01	30.4910204554128
1979-04-01	30.3224146231609
1979-05-01	30.5625912964504
1979-06-01	29.6137939287791
1979-07-01	29.4910483387833
1979-08-01	30.4947865710599
1979-09-01	29.4283845124905
1979-10-01	29.9620678182439
1979-11-01	30.5972619666123
1979-12-01	29.9625055156810
1980-01-01	30.8583508218052
1980-02-01	31.1604380767977
1980-03-01	30.4186903224224
1980-04-01	30.8196375748908
1980-05-01	29.9677556281570
1980-06-01	30.8538325796843
1980-07-01	30.9362939608948
1980-08-01	31.1533801285119
1980-09-01	30.2822076257165
1980-10-01	31.8819092014104
1980-11-01	31.7964841646296
1980-12-01	31.5903141746877
1981-01-01	33.2056885987066
1981-02-01	32.1664794814836
1981-03-01	31.9882494021749
1981-04-01	32.4389054508860
1981-05-01	32.8509163535449
1981-06-01	32.5886096351666
1981-07-01	31.8046481760235
1981-08-01	32.1155467016027
1981-09-01	31.2182942754527
1981-10-01	31.9702850037605
1981-11-01	32.7578942630507
1981-12-01	33.6152077994856
1982-01-01	33.7171402806615
1982-02-01	33.5634325104699
1982-03-01	32.8553236460986
1982-04-01	34.7144821397400
1982-05-01	34.0818743601335
1982-06-01	34.4094212322036
1982-07-01	34.9878904201235
1982-08-01	35.1162216579498
1982-09-01	32.9557101301473
1982-10-01	34.2356519890608
1982-11-01	35.1849893414515
1982-12-01	35.7766766805838
1983-01-01	36.8097765839336
1983-02-01	35.8543280458684
1983-03-01	36.1690062672478
1983-04-01	36.2910347738842
1983-05-01	36.8286118167700
1983-06-01	37.2644834110523
1983-07-01	37.0463561806283
1983-08-01	38.0378048185553
1983-09-01	36.2115885896814
1983-10-01	37.7744186123860
1983-11-01	37.7744382267473
1983-12-01	37.0047914302251
1984-01-01	38.1258127406420
1984-02-01	37.2510156302142
1984-03-01	36.8040536515841
1984-04-01	37.3648960177238
1984-05-01	37.9165498574645
1984-06-01	36.7715849102500
1984-07-01	37.8886584906426
1984-08-01	38.8529354764313
1984-09-01	37.2147564955079
1984-10-01	38.3265177518787
1984-11-01	38.5697439612792
1984-12-01	38.6999734375165
1985-01-01	39.7334151146322
1985-02-01	38.9517725003627
1985-03-01	38.3146298682522
1985-04-01	39.8619189134381
1985-05-01	39.9151817150593
1985-06-01	39.1679742040874
1985-07-01	39.4257784581180
1985-08-01	39.5731016327242
1985-09-01	37.0499871376034
1985-10-01	37.8225434703160
1985-11-01	36.4763515133211
1985-12-01	37.1977721043918
1986-01-01	38.2024311294983
1986-02-01	38.6120827493828
1986-03-01	37.8397904770329
1986-04-01	37.6574944147024
1986-05-01	38.1690441153800
1986-06-01	37.4816409006048
1986-07-01	38.8213936579314
1986-08-01	38.9131690478485
1986-09-01	37.5131261681474
1986-10-01	38.1968841656234
1986-11-01	37.4702868194566
1986-12-01	37.7846581351296
1987-01-01	39.7558116861730
1987-02-01	38.4410187902276
1987-03-01	36.9899215789906
1987-04-01	37.9833660491424
1987-05-01	38.5259087020917
1987-06-01	38.4870415558286
1987-07-01	38.9889649939150
1987-08-01	39.9578378660627
1987-09-01	39.1260596734922
1987-10-01	38.0719822576914
1987-11-01	38.8751865971333
1987-12-01	38.3616622327624
1988-01-01	38.9827478819192
1988-02-01	37.9377502978083
1988-03-01	36.7901853136652
1988-04-01	37.0214446208850
1988-05-01	38.4829991574437
1988-06-01	37.7701157730790
1988-07-01	38.1384232065180
1988-08-01	39.3808951293593
1988-09-01	38.0234502692993
1988-10-01	39.4194910345251
1988-11-01	38.7567976303683
1988-12-01	39.2774527818757
1989-01-01	39.9324320818896
1989-02-01	37.5445520872274
1989-03-01	37.1842112144136
1989-04-01	37.0673041230765
1989-05-01	37.0483265068649
1989-06-01	37.6747953912333
1989-07-01	37.3863212487922
1989-08-01	37.6137572476998
1989-09-01	35.6855659287725
1989-10-01	37.2805009448672
1989-11-01	36.2711903617562
1989-12-01	37.7554178723888
1990-01-01	39.4954626895833
1990-02-01	38.4232478977221
1990-03-01	37.8331279746623
1990-04-01	37.9875536382879
1990-05-01	37.3115078257381
1990-06-01	37.1724079258430
1990-07-01	36.6467616515478
1990-08-01	36.7973447682071
1990-09-01	35.3384604525790
1990-10-01	35.9838312395530
1990-11-01	36.2336817653743
1990-12-01	36.7764103067338
1991-01-01	38.1171304432940
1991-02-01	36.8778496068949
1991-03-01	37.8014769538335
1991-04-01	37.9057200570454
1991-05-01	38.2531428774913
1991-06-01	38.2633374756226
1991-07-01	39.8087758658512
1991-08-01	39.6148266673932
1991-09-01	37.5409269869892
1991-10-01	39.0017330367014
1991-11-01	37.8649901796251
1991-12-01	38.1190242458795
1992-01-01	38.3688372706768
1992-02-01	37.8498872258679
1992-03-01	38.3638367194872
1992-04-01	38.7912137686331
1992-05-01	38.7526727885109
1992-06-01	37.8254564825661
1992-07-01	37.7984919872687
1992-08-01	38.5665918963436
1992-09-01	37.8925666439984
1992-10-01	37.3785282845317
1992-11-01	39.6211466135847
1992-12-01	40.0721613768410
1993-01-01	40.8185912802959
1993-02-01	40.5665649127795
1993-03-01	38.8263929151332
1993-04-01	40.4026671689253
1993-05-01	39.3068259782050
1993-06-01	39.8659236173244
1993-07-01	40.2632202920589
1993-08-01	41.1129015668499
1993-09-01	39.0945662131859
1993-10-01	38.8247821078359
1993-11-01	38.7306965482889
1993-12-01	38.2433195861312
1994-01-01	38.9809114931606
1994-02-01	38.4081296972790
1994-03-01	37.4425970033080
1994-04-01	38.3702563521419
1994-05-01	38.0208080786421
1994-06-01	38.6475675063951
1994-07-01	39.1167860004843
1994-08-01	39.5309714588119
1994-09-01	37.8424504502099
1994-10-01	39.2545142583599
1994-11-01	38.8053760447538
1994-12-01	38.7746495801774
1995-01-01	39.7275338482556
1995-02-01	38.1003565933869
1995-03-01	38.3071620569816
1995-04-01	38.3144025585337
1995-05-01	38.3707895154528
1995-06-01	39.1796639207180
1995-07-01	39.2090460378334
1995-08-01	39.0222180428344
1995-09-01	37.1481979108692
1995-10-01	38.5594527082148
1995-11-01	38.1944676472440
1995-12-01	38.9207266341279
1996-01-01	40.1894366123499
1996-02-01	39.7483550317345
1996-03-01	39.0967137909217
1996-04-01	39.6080801961520
1996-05-01	39.9311203602389
1996-06-01	38.9688801139272
1996-07-01	39.2037920981643
1996-08-01	40.2807988635144
1996-09-01	38.7593727534751
1996-10-01	39.4378220912979
1996-11-01	39.4206016562621
1996-12-01	39.4860140549650
1997-01-01	40.1338209401409
1997-02-01	39.1417137602237
1997-03-01	39.2796000864705
1997-04-01	39.1609165834578
1997-05-01	40.5194047270927
1997-06-01	40.0009834603750
1997-07-01	40.3275990036952
1997-08-01	40.5246708155089
1997-09-01	39.0785810756603
1997-10-01	40.3431248366887
1997-11-01	39.3744051831846
1997-12-01	39.3149422651463
1998-01-01	40.5627948177864
1998-02-01	40.6689658773555
1998-03-01	39.6986165932289
1998-04-01	39.7892570293733
1998-05-01	38.8740048022894
1998-06-01	38.5149579443775
1998-07-01	39.3430780315761
1998-08-01	39.8886749513400
1998-09-01	37.4608492268119
1998-10-01	39.4235890437794
1998-11-01	39.2333205265099
1998-12-01	39.8240024959372
1999-01-01	40.5507173130662
1999-02-01	39.5792023910963
1999-03-01	39.9522249212497
1999-04-01	40.1122448105964
1999-05-01	40.2300742919217
1999-06-01	39.3020679757169
1999-07-01	39.4057784306335
1999-08-01	38.8829279793692
1999-09-01	38.6868914209225
1999-10-01	39.0068330990415
1999-11-01	38.9919275086181
1999-12-01	39.3071624286911
2000-01-01	40.6593952061533
2000-02-01	39.7056451963915
2000-03-01	39.6566289567194
2000-04-01	39.4743958351582
2000-05-01	39.1747493866742
2000-06-01	38.9343410362239
2000-07-01	39.2969418194636
2000-08-01	38.7253577534482
2000-09-01	37.3670740860925
2000-10-01	38.6836841348068
2000-11-01	38.9399652092337
2000-12-01	39.2231010327507
2001-01-01	40.4691361503695
2001-02-01	39.7998297652682
2001-03-01	40.1939193248290
2001-04-01	39.3910191265286
2001-05-01	39.4800036951451
2001-06-01	39.0322649582400
2001-07-01	39.8648642452177
2001-08-01	40.1517890628872
2001-09-01	38.3022977291066
2001-10-01	38.8656526285992
2001-11-01	39.1632442334074
2001-12-01	38.8314815818673
2002-01-01	39.7455461742871
2002-02-01	37.9933875265378
2002-03-01	38.0184446770963
2002-04-01	37.9135654680451
2002-05-01	37.7572011110650
2002-06-01	37.2852269808695
2002-07-01	38.6887878176933
2002-08-01	39.0644187579245
2002-09-01	37.1921462080349
2002-10-01	38.3218554137431
2002-11-01	37.4085816903964
2002-12-01	36.7779773760636
2003-01-01	37.5311538438324
2003-02-01	36.4165940904827
2003-03-01	36.3302626360855
2003-04-01	36.6894041378597
2003-05-01	36.5770183972541
2003-06-01	36.6103608210740
2003-07-01	36.8133654485803
2003-08-01	36.6253419359023
2003-09-01	35.7880964862685
2003-10-01	36.2685748906704
2003-11-01	36.6063072123268
2003-12-01	35.9291651183605
2004-01-01	37.5158909166225
2004-02-01	35.8503097673054
2004-03-01	35.9558804909517
2004-04-01	35.6456722618528
2004-05-01	35.0203305407945
2004-06-01	34.2556930466344
2004-07-01	34.8701834554244
2004-08-01	35.5652917131601
2004-09-01	34.0618927030789
2004-10-01	34.5976167071995
2004-11-01	35.3345445525092
2004-12-01	35.6168754928722
2005-01-01	36.2496017208933
2005-02-01	35.2381566989938
2005-03-01	34.0178017055925
2005-04-01	33.3120169584362
2005-05-01	33.7043296794511
2005-06-01	33.6994493318768
2005-07-01	33.4777014586674
2005-08-01	33.7507897357826
2005-09-01	33.0237103769003
2005-10-01	33.1474718757754
2005-11-01	32.9263009354195
2005-12-01	33.0670095972912
2006-01-01	34.9768765451090
2006-02-01	32.9656165046222
2006-03-01	32.3530184346730
2006-04-01	32.7638839161053
2006-05-01	32.7824577226808
2006-06-01	32.5289167662108
2006-07-01	32.3017822654813
2006-08-01	32.1801714832250
2006-09-01	31.3074726540369
2006-10-01	32.3678686454393
2006-11-01	33.0510000732099
2006-12-01	32.9582988129371
2007-01-01	33.6517701894422
2007-02-01	32.8014161708802
2007-03-01	32.0721579686748
2007-04-01	32.0929599958891
2007-05-01	32.0200564830872
2007-06-01	31.1580529840585
2007-07-01	32.4894792020575
2007-08-01	32.0582998297803
2007-09-01	31.4565324499278
2007-10-01	32.5389442580030
2007-11-01	32.8572967120219
2007-12-01	32.9929657954966
2008-01-01	34.3432393825581
2008-02-01	34.0346626201684
2008-03-01	32.9374087010406
2008-04-01	32.3130865539116
2008-05-01	31.8713988906837
2008-06-01	31.3160902205743
2008-07-01	32.3248266052731
2008-08-01	32.2655955130458
2008-09-01	30.8198659507350
2008-10-01	32.5504531527146
2008-11-01	32.1681793824106
2008-12-01	31.3592015537404
2009-01-01	32.5590822955786
2009-02-01	30.4946341322194
2009-03-01	30.5610271381993
2009-04-01	30.4952860561827
2009-05-01	31.2405232001908
2009-06-01	30.3412551391839
2009-07-01	30.7365399429661
2009-08-01	30.2022077599024
2009-09-01	30.5207334699099
2009-10-01	31.0366144180180
2009-11-01	30.5714043027274
2009-12-01	29.7260989402852
2010-01-01	30.8300834237381
2010-02-01	29.0709669370386
2010-03-01	29.2173458588852
2010-04-01	28.6806410376332
2010-05-01	29.0986529371095
2010-06-01	28.8319314777397
2010-07-01	28.3061465325192
2010-08-01	29.0328679674211
2010-09-01	27.5778741553534
2010-10-01	28.6066825139711
2010-11-01	28.1083425695422
2010-12-01	27.9784887074229
2011-01-01	29.0027143373901
2011-02-01	27.9987972952427
2011-03-01	27.3069061339936
2011-04-01	27.7291036311130
2011-05-01	27.9872073288863
2011-06-01	28.2627760518939
2011-07-01	28.8298743043532
2011-08-01	28.5705835231381
2011-09-01	27.8853152467473
2011-10-01	28.5940005520209
2011-11-01	28.5807486007079
2011-12-01	29.2691538504908
2012-01-01	30.2388060221267
2012-02-01	29.1653395270046
2012-03-01	28.4019604643110
2012-04-01	28.1189546072260
2012-05-01	28.1807589303831
2012-06-01	28.3238398318699
2012-07-01	27.6705620675849
2012-08-01	28.5132887133206
2012-09-01	27.6703097766403
2012-10-01	27.3989490599389
2012-11-01	27.7931088812106
2012-12-01	27.5295649931184
2013-01-01	28.9470211330431
2013-02-01	27.5008174258656
2013-03-01	27.5392567227913
2013-04-01	27.1287300563713
2013-05-01	27.6263729264399
2013-06-01	27.9486402287658
2013-07-01	27.7742347375687
2013-08-01	28.1436813785363
2013-09-01	27.3319018879497
2013-10-01	27.5796171964134
2013-11-01	28.7501284090614
2013-12-01	28.4285710990500
2014-01-01	29.1495372014683
2014-02-01	27.6995471936735
2014-03-01	27.8493310288101
2014-04-01	27.5253462255469
2014-05-01	28.3706452019368
2014-06-01	27.5650561364165
2014-07-01	26.7331182425244
2014-08-01	27.2457244517447
2014-09-01	28.1723143696813
2014-10-01	27.4135093551925
2014-11-01	27.9930274888559
2014-12-01	28.2920457005068
2015-01-01	28.7445312145306
2015-02-01	27.3210567619431
2015-03-01	27.2216948644176
2015-04-01	26.6978358810357
2015-05-01	26.8664385993392
2015-06-01	26.6920041947080
2015-07-01	26.9963590526903
2015-08-01	27.3832555787811
2015-09-01	27.6184104494496
2015-10-01	27.0635938106087
2015-11-01	26.5848785289020
2015-12-01	27.4568332194861
2016-01-01	27.6952256880598
2016-02-01	26.6865260573597
2016-03-01	27.0263975769153
2016-04-01	27.5675178716338
2016-05-01	27.1902119952013
2016-06-01	27.9206578768470
2016-07-01	28.8152195529624
2016-08-01	28.5679071542531
2016-09-01	29.5746438086574
2016-10-01	28.8836486396706
2016-11-01	28.3265816114573
2016-12-01	28.4605074054995
2017-01-01	29.8335157914161
2017-02-01	28.0485517831222
2017-03-01	28.1381130179876
2017-04-01	27.5025392536882
2017-05-01	27.0249512296905
2017-06-01	27.1056742244856
2017-07-01	26.9607480424915
2017-08-01	27.1713490696641
2017-09-01	26.5051714420657
2017-10-01	26.6318784658703
2017-11-01	25.9794681011754
2017-12-01	25.9973636145260
2018-01-01	26.8686210503468
2018-02-01	25.7310455759296
2018-03-01	26.4295626121635
2018-04-01	27.8102752878737
2018-05-01	27.2862265085971
2018-06-01	26.2565318720581
2018-07-01	26.7981248668048
2018-08-01	26.8970443903260
2018-09-01	27.0542024468603