Month	Percent
1978-01-01	2.56101235311841
1978-02-01	2.75862068965517
1978-03-01	2.67538644470868
1978-04-01	2.24254942460903
1978-05-01	2.30926629640456
1978-06-01	2.34260614934114
1978-07-01	2.17647058823529
1978-08-01	2.30292294065545
1978-09-01	2.30428360413589
1978-10-01	2.27406969875960
1978-11-01	2.32695139911635
1978-12-01	2.31042654028436
1979-01-01	2.48131539611360
1979-02-01	2.36102809324567
1979-03-01	2.51404909790003
1979-04-01	2.22677995898037
1979-05-01	1.92139737991266
1979-06-01	2.02663578459757
1979-07-01	2.08514335360556
1979-08-01	2.18340611353712
1979-09-01	1.99530516431925
1979-10-01	2.01754385964912
1979-11-01	2.10280373831776
1979-12-01	2.02346041055718
1980-01-01	2.16424547880225
1980-02-01	2.16488730723606
1980-03-01	2.19683655536028
1980-04-01	1.94597734533837
1980-05-01	1.85561032183242
1980-06-01	1.78674351585014
1980-07-01	1.98904583453445
1980-08-01	2.02839756592292
1980-09-01	1.88460423311105
1980-10-01	2.02078521939954
1980-11-01	2.25368390638544
1980-12-01	2.20609579100145
1981-01-01	2.33304170312044
1981-02-01	2.50291036088475
1981-03-01	2.53237410071942
1981-04-01	2.46277205040092
1981-05-01	2.29292060762396
1981-06-01	2.13797035347776
1981-07-01	2.14469545324564
1981-08-01	2.06659012629162
1981-09-01	2.15703192407248
1981-10-01	2.27403569372481
1981-11-01	2.13502596653203
1981-12-01	2.20930232558140
1982-01-01	2.48610704884469
1982-02-01	2.56335566559860
1982-03-01	2.58992805755396
1982-04-01	2.41683252772249
1982-05-01	2.24240703945501
1982-06-01	2.41751990898749
1982-07-01	2.33751425313569
1982-08-01	2.25263758197890
1982-09-01	2.28506141102542
1982-10-01	2.45293782087849
1982-11-01	2.36602052451539
1982-12-01	2.42857142857143
1983-01-01	2.86779466590192
1983-02-01	2.95382850587898
1983-03-01	3.02338847689675
1983-04-01	2.90960451977401
1983-05-01	2.61162594776748
1983-06-01	2.46222719641858
1983-07-01	2.36154062412145
1983-08-01	2.65012686777558
1983-09-01	2.68210050818746
1983-10-01	2.54381006218202
1983-11-01	2.59960440802487
1983-12-01	2.52984650369528
1984-01-01	2.80561122244489
1984-02-01	2.94369819948557
1984-03-01	2.97956867196368
1984-04-01	2.80741156653565
1984-05-01	2.60504201680672
1984-06-01	2.59921743991056
1984-07-01	2.55546194889076
1984-08-01	2.58136924803591
1984-09-01	2.79798545047566
1984-10-01	2.63970794720584
1984-11-01	2.52737994945240
1984-12-01	2.48728094968909
1985-01-01	2.55681818181818
1985-02-01	2.87585421412301
1985-03-01	2.99435028248588
1985-04-01	2.59849119865884
1985-05-01	2.42542514636186
1985-06-01	2.45741413013125
1985-07-01	2.34505862646566
1985-08-01	2.38161950126086
1985-09-01	2.62496509354929
1985-10-01	2.65363128491620
1985-11-01	2.71328671328671
1985-12-01	2.70194202082747
1986-01-01	2.79661016949153
1986-02-01	2.77856535299121
1986-03-01	3.03115352231266
1986-04-01	2.90939318370740
1986-05-01	2.57760532150776
1986-06-01	2.61038600388781
1986-07-01	2.81845813760707
1986-08-01	2.67586206896552
1986-09-01	2.68252212389381
1986-10-01	2.71317829457364
1986-11-01	2.72146625937240
1986-12-01	2.73819502654373
1987-01-01	3.03456026973869
1987-02-01	3.12324141812043
1987-03-01	3.20155902004454
1987-04-01	3.02946846598733
1987-05-01	3.10695628265054
1987-06-01	2.90968981608564
1987-07-01	2.65972031806965
1987-08-01	2.84463894967177
1987-09-01	2.74800769442154
1987-10-01	2.69378779549203
1987-11-01	2.66996972199284
1987-12-01	2.57332595462092
1988-01-01	2.83727399165508
1988-02-01	2.92234901196772
1988-03-01	2.90055248618785
1988-04-01	2.61865793780687
1988-05-01	2.39065471339310
1988-06-01	2.27827502034174
1988-07-01	2.46679316888046
1988-08-01	2.44366005973391
1988-09-01	2.29257641921397
1988-10-01	2.29132569558101
1988-11-01	2.25788900979325
1988-12-01	2.13406292749658
1989-01-01	2.32365145228216
1989-02-01	2.39867659222498
1989-03-01	2.45767340251229
1989-04-01	2.48313090418354
1989-05-01	2.36622748050551
1989-06-01	2.11966729272874
1989-07-01	2.11456102783726
1989-08-01	2.20370868046224
1989-09-01	2.15633423180593
1989-10-01	2.09903121636168
1989-11-01	2.12308519215265
1989-12-01	1.96659482758621
1990-01-01	2.15258855585831
1990-02-01	2.25788900979325
1990-03-01	2.31681034482759
1990-04-01	2.08500400962310
1990-05-01	1.93172797036253
1990-06-01	1.93428722840488
1990-07-01	1.88129305776365
1990-08-01	1.94459243473628
1990-09-01	2.11640211640212
1990-10-01	2.15903106898368
1990-11-01	1.93531283138918
1990-12-01	1.88729399255715
1991-01-01	2.11512717536814
1991-02-01	2.19544846050870
1991-03-01	2.39852398523985
1991-04-01	2.12654239957994
1991-05-01	1.93312434691745
1991-06-01	1.84895833333333
1991-07-01	1.98174706649283
1991-08-01	2.08877284595300
1991-09-01	1.97813638729828
1991-10-01	1.79968701095462
1991-11-01	1.88087774294671
1991-12-01	2.01729106628242
1992-01-01	2.13214003685180
1992-02-01	2.09863588667366
1992-03-01	2.14155131888221
1992-04-01	2.02544793560114
1992-05-01	2.14581178903826
1992-06-01	2.04769310523587
1992-07-01	2.03870967741935
1992-08-01	2.14359504132231
1992-09-01	2.14803312629400
1992-10-01	2.18902910121040
1992-11-01	2.13532287110882
1992-12-01	2.12160413971539
1993-01-01	2.22164140094093
1993-02-01	2.31831206043240
1993-03-01	2.43271221532091
1993-04-01	2.26337448559671
1993-05-01	2.50511247443763
1993-06-01	2.25236754543128
1993-07-01	2.32379979570991
1993-08-01	2.50896057347670
1993-09-01	2.45775729646697
1993-10-01	2.62755102040816
1993-11-01	2.63090676883780
1993-12-01	2.59173723376957
1994-01-01	2.69639616282085
1994-02-01	2.85047939880798
1994-03-01	3.06622004637980
1994-04-01	2.89224468901971
1994-05-01	2.69514365624205
1994-06-01	2.80183392766174
1994-07-01	2.84914779954210
1994-08-01	2.94715447154472
1994-09-01	3.02876049885467
1994-10-01	3.01174068402246
1994-11-01	2.73867417455848
1994-12-01	2.76994101051552
1995-01-01	3.00362506473330
1995-02-01	3.03344568317345
1995-03-01	3.28626444159178
1995-04-01	3.14336825964733
1995-05-01	3.03184713375796
1995-06-01	2.91878172588832
1995-07-01	3.03336703741153
1995-08-01	3.16696224980998
1995-09-01	3.13368713671974
1995-10-01	3.18987341772152
1995-11-01	3.35877862595420
1995-12-01	3.32225913621262
1996-01-01	3.47222222222222
1996-02-01	3.42695181654213
1996-03-01	3.50562947799386
1996-04-01	3.39842759320314
1996-05-01	3.63820111167256
1996-06-01	3.44480764395273
1996-07-01	3.24039186134137
1996-08-01	3.39451848126729
1996-09-01	3.32326283987915
1996-10-01	3.37786740610033
1996-11-01	3.18825910931174
1996-12-01	3.21437610731460
1997-01-01	3.34770479330459
1997-02-01	3.45704117946111
1997-03-01	3.42741935483871
1997-04-01	3.28650275965881
1997-05-01	3.38898579616247
1997-06-01	3.28603435399552
1997-07-01	3.29588014981273
1997-08-01	3.40937578340436
1997-09-01	3.56604721245605
1997-10-01	3.48983178508662
1997-11-01	3.42828333753466
1997-12-01	3.35435056746532
1998-01-01	3.72812579254375
1998-02-01	3.84517443340973
1998-03-01	4.18557740796773
1998-04-01	4.29648241206030
1998-05-01	4.39450686641698
1998-06-01	4.21341311393667
1998-07-01	3.97897897897898
1998-08-01	4.43720230634244
1998-09-01	4.46899322119006
1998-10-01	4.26813959327140
1998-11-01	4.42767295597484
1998-12-01	4.33467741935484
1999-01-01	4.67407781707933
1999-02-01	4.80304955527319
1999-03-01	5.14054190934414
1999-04-01	5.16893595562279
1999-05-01	5.18018018018018
1999-06-01	5.15515515515516
1999-07-01	4.90072882633828
1999-08-01	4.81806775407779
1999-09-01	4.66165413533835
1999-10-01	4.61268488342943
1999-11-01	4.65643090863328
1999-12-01	4.66818067120868
2000-01-01	4.85387547649301
2000-02-01	5.20010196278358
2000-03-01	5.49923973644197
2000-04-01	5.20464881253158
2000-05-01	4.92214967353089
2000-06-01	4.86023671619240
2000-07-01	4.80040424456796
2000-08-01	4.76430552054449
2000-09-01	4.85534591194969
2000-10-01	4.84437751004016
2000-11-01	4.82169763937720
2000-12-01	4.77152234284272
2001-01-01	4.90421455938697
2001-02-01	4.93985154850269
2001-03-01	5.30322253235220
2001-04-01	5.41224076884168
2001-05-01	5.34543620776601
2001-06-01	5.24183337553811
2001-07-01	5.14314669369141
2001-08-01	5.10101010101010
2001-09-01	5.38891713268937
2001-10-01	5.59369438087974
2001-11-01	5.58943089430894
2001-12-01	5.51442430431453
2002-01-01	5.41097655243494
2002-02-01	5.50245414621545
2002-03-01	5.83717357910906
2002-04-01	5.80711179329752
2002-05-01	5.72890025575448
2002-06-01	5.67049808429119
2002-07-01	5.43644716692190
2002-08-01	5.59938915754645
2002-09-01	5.75300434671440
2002-10-01	5.74712643678161
2002-11-01	5.50694801852805
2002-12-01	5.37328855592870
2003-01-01	5.53822152886115
2003-02-01	5.57872784150156
2003-03-01	6.21614650502966
2003-04-01	5.99434010805248
2003-05-01	5.80711179329752
2003-06-01	5.80414216312963
2003-07-01	5.37275064267352
2003-08-01	5.14800514800515
2003-09-01	5.51404277248132
2003-10-01	5.41795665634675
2003-11-01	5.28895768833849
2003-12-01	4.90145228215768
2004-01-01	5.17647058823529
2004-02-01	5.37916557334033
2004-03-01	5.35248041775457
2004-04-01	5.19917227108122
2004-05-01	4.88119834710744
2004-06-01	5.00648508430610
2004-07-01	5.18268981601451
2004-08-01	4.83829236739974
2004-09-01	4.91419656786271
2004-10-01	4.91547464239272
2004-11-01	4.75942782834850
2004-12-01	4.40907905035220
2005-01-01	4.77439664218258
2005-02-01	5.08429926238145
2005-03-01	4.98295305533701
2005-04-01	4.79916536254564
2005-05-01	4.72236637259990
2005-06-01	4.52065471551052
2005-07-01	4.52300493891344
2005-08-01	4.34556336195680
2005-09-01	4.34557682359027
2005-10-01	4.62412813226556
2005-11-01	4.56085483450612
2005-12-01	4.29656798532879
2006-01-01	4.80946123521682
2006-02-01	4.69038208168643
2006-03-01	4.59890253462242
2006-04-01	4.40563086548488
2006-05-01	4.25200933367902
2006-06-01	4.30163254729204
2006-07-01	4.24368653996355
2006-08-01	4.21545667447307
2006-09-01	4.33541017653167
2006-10-01	4.43464730290456
2006-11-01	4.20585161964472
2006-12-01	4.01996847083552
2007-01-01	4.18751646036344
2007-02-01	4.29769392033543
2007-03-01	4.35576421491914
2007-04-01	4.12130637636081
2007-05-01	3.92866373739984
2007-06-01	3.83022774327122
2007-07-01	3.74317650116974
2007-08-01	3.69599167100468
2007-09-01	4.02702000519616
2007-10-01	4.15476499610491
2007-11-01	3.89237199582027
2007-12-01	3.67743630154978
2008-01-01	4.07894736842105
2008-02-01	4.28383705650460
2008-03-01	4.07465825446898
2008-04-01	4.09707724425887
2008-05-01	4.24760424760425
2008-06-01	4.14926931106472
2008-07-01	4.01574803149606
2008-08-01	4.19817470664928
2008-09-01	4.13396127681842
2008-10-01	4.05546834118263
2008-11-01	4.06504065040650
2008-12-01	4.37532946758039
2009-01-01	4.36854646544877
2009-02-01	4.75305363781200
2009-03-01	5.13771186440678
2009-04-01	5.46649145860710
2009-05-01	5.48124836087071
2009-06-01	5.65688606925720
2009-07-01	5.90728476821192
2009-08-01	5.76567045755091
2009-09-01	5.66587238549113
2009-10-01	5.48199152542373
2009-11-01	5.38092701118807
2009-12-01	5.16457051110516
2010-01-01	5.31659096981031
2010-02-01	5.47945205479452
2010-03-01	5.88548601864181
2010-04-01	5.73096312019103
2010-05-01	5.63081009296149
2010-06-01	5.62632696390658
2010-07-01	5.48894217958966
2010-08-01	5.38236077804423
2010-09-01	5.60722827531225
2010-10-01	5.49479861296346
2010-11-01	5.33655135425047
2010-12-01	5.07518796992481
2011-01-01	5.29712288249529
2011-02-01	5.00538213132400
2011-03-01	5.28683914510686
2011-04-01	5.24699972090427
2011-05-01	4.96513249651325
2011-06-01	4.81657798935872
2011-07-01	5.08998875140607
2011-08-01	4.63015245623941
2011-09-01	4.53563714902808
2011-10-01	4.83130904183536
2011-11-01	4.66810577441986
2011-12-01	4.73228772309356
2012-01-01	4.79525862068966
2012-02-01	4.77732793522267
2012-03-01	5.07011866235167
2012-04-01	5.10204081632653
2012-05-01	4.67867706372681
2012-06-01	4.63682658804610
2012-07-01	4.68750000000000
2012-08-01	4.49771074602747
2012-09-01	4.51370231058571
2012-10-01	4.34316353887400
2012-11-01	4.28686977622000
2012-12-01	4.35019032082654
2013-01-01	4.63665943600868
2013-02-01	4.64169381107492
2013-03-01	4.85753052917232
2013-04-01	4.66558791801510
2013-05-01	4.32679387261489
2013-06-01	4.24388933655654
2013-07-01	4.34430652995143
2013-08-01	4.44384594667385
2013-09-01	4.31034482758621
2013-10-01	4.26105717367853
2013-11-01	4.02267818574514
2013-12-01	3.70168753402286
2014-01-01	3.94987741759738
2014-02-01	3.81263616557734
2014-03-01	4.00758191172488
2014-04-01	4.04967602591793
2014-05-01	3.68477676169984
2014-06-01	3.79849137931034
2014-07-01	3.92103839913467
2014-08-01	3.74865156418554
2014-09-01	3.71767241379310
2014-10-01	3.84199134199134
2014-11-01	3.67247007616975
2014-12-01	3.45578231292517
2015-01-01	3.85659967409017
2015-02-01	3.69464819342570
2015-03-01	3.80952380952381
2015-04-01	3.64526659412405
2015-05-01	3.52303523035230
2015-06-01	3.59459459459460
2015-07-01	3.55591748099891
2015-08-01	3.60629067245119
2015-09-01	3.68874528809908
2015-10-01	3.48554444744664
2015-11-01	3.45014941591959
2015-12-01	3.47354138398915
2016-01-01	3.53260869565217
2016-02-01	3.65521003818876
2016-03-01	3.58511220580186
2016-04-01	3.52685838307108
2016-05-01	3.37108953613808
2016-06-01	3.21361058601134
2016-07-01	3.25556158437330
2016-08-01	3.54629128316188
2016-09-01	3.42687533729088
2016-10-01	3.20927723840345
2016-11-01	3.19609967497291
2016-12-01	3.29997295104138
2017-01-01	3.25291406885335
2017-02-01	3.11645708037179
2017-03-01	3.03859841226389
2017-04-01	3.01958650707291
2017-05-01	3.21100917431193
2017-06-01	2.88954901431272
2017-07-01	3.14107771459518
2017-08-01	3.08024858146447
2017-09-01	2.99352750809062
2017-10-01	2.88798920377868
2017-11-01	2.85171102661597
2017-12-01	2.77400054392168
2018-01-01	2.57871878393051
2018-02-01	2.66376732807828
2018-03-01	2.76722734671731
2018-04-01	2.88254310344828
2018-05-01	2.43902439024390
2018-06-01	2.57303671937818
2018-07-01	2.77777777777778
2018-08-01	2.68961807423346
2018-09-01	2.49865663621709