Month	Percent
1968-01-01	1.040118870728080
1968-02-01	1.273408239700370
1968-03-01	1.348474095102910
1968-04-01	0.874243443174176
1968-05-01	0.778715120051914
1968-06-01	0.710135571336346
1968-07-01	0.921052631578947
1968-08-01	0.862068965517241
1968-09-01	0.725115359261701
1968-10-01	0.654022236756050
1968-11-01	0.664010624169987
1968-12-01	0.707213578500707
1969-01-01	1.033973412112260
1969-02-01	1.016702977487290
1969-03-01	1.110340041637750
1969-04-01	0.992063492063492
1969-05-01	0.708306503541532
1969-06-01	0.771704180064309
1969-07-01	0.655307994757536
1969-08-01	0.727513227513228
1969-09-01	0.904977375565611
1969-10-01	0.713359273670558
1969-11-01	0.732844770153231
1969-12-01	0.701754385964912
1970-01-01	1.013024602026050
1970-02-01	0.862068965517241
1970-03-01	0.760719225449516
1970-04-01	0.853018372703412
1970-05-01	0.763844684914068
1970-06-01	0.697084917617237
1970-07-01	0.641025641025641
1970-08-01	0.788954635108481
1970-09-01	0.647249190938511
1970-10-01	0.581771170006464
1970-11-01	0.809716599190284
1970-12-01	0.776836158192090
1971-01-01	0.870195794053662
1971-02-01	1.015965166908560
1971-03-01	1.033057851239670
1971-04-01	1.011463250168580
1971-05-01	0.852459016393442
1971-06-01	0.714749837556855
1971-07-01	0.720366732154551
1971-08-01	0.793126239259749
1971-09-01	0.929614873837981
1971-10-01	0.981033355134074
1971-11-01	0.928998009289980
1971-12-01	0.845070422535211
1972-01-01	1.289398280802290
1972-02-01	1.230101302460200
1972-03-01	1.398601398601400
1972-04-01	1.347708894878710
1972-05-01	0.974658869395711
1972-06-01	0.846905537459284
1972-07-01	0.903225806451613
1972-08-01	0.842514581983150
1972-09-01	0.902643455834945
1972-10-01	0.691389063482087
1972-11-01	0.711974110032362
1972-12-01	0.863213811420983
1973-01-01	1.141705842847550
1973-02-01	1.060304837640820
1973-03-01	0.977198697068404
1973-04-01	1.086261980830670
1973-05-01	0.752823086574655
1973-06-01	0.793650793650794
1973-07-01	0.799016594960049
1973-08-01	0.938086303939962
1973-09-01	0.927643784786642
1973-10-01	0.885478158205431
1973-11-01	0.731707317073171
1973-12-01	0.920447074293228
1974-01-01	1.201602136181580
1974-02-01	1.248357424441520
1974-03-01	1.355713363460300
1974-04-01	0.874453466583386
1974-05-01	0.735294117647059
1974-06-01	0.791717417783191
1974-07-01	0.987654320987654
1974-08-01	1.180857675574890
1974-09-01	0.993788819875776
1974-10-01	1.287553648068670
1974-11-01	1.191969887076540
1974-12-01	1.442622950819670
1975-01-01	1.759133964817320
1975-02-01	1.800000000000000
1975-03-01	1.880674448767830
1975-04-01	1.709943001899940
1975-05-01	1.510574018126890
1975-06-01	1.302545885139140
1975-07-01	1.137043686415320
1975-08-01	1.457194899817850
1975-09-01	1.455427531837480
1975-10-01	1.392251815980630
1975-11-01	1.301921884686920
1975-12-01	1.545396007726980
1976-01-01	1.702685003274390
1976-02-01	1.877022653721680
1976-03-01	1.634192331866750
1976-04-01	1.405867970660150
1976-05-01	1.369047619047620
1976-06-01	1.407624633431080
1976-07-01	1.293356848912400
1976-08-01	1.414260459634650
1976-09-01	1.460280373831780
1976-10-01	1.228070175438600
1976-11-01	1.202645820805770
1976-12-01	1.296296296296300
1977-01-01	1.575299306868300
1977-02-01	1.695979899497490
1977-03-01	1.837109614206980
1977-04-01	1.403508771929820
1977-05-01	1.528013582342950
1977-06-01	1.627384960718290
1977-07-01	1.411631846414460
1977-08-01	1.597261836851110
1977-09-01	1.577464788732390
1977-10-01	1.579244218838130
1977-11-01	1.553509781357880
1977-12-01	1.711924439197170
1978-01-01	1.884498480243160
1978-02-01	2.043269230769230
1978-03-01	2.113916617733410
1978-04-01	1.935116676152530
1978-05-01	1.741022850924920
1978-06-01	1.667563206024740
1978-07-01	1.655629139072850
1978-08-01	1.673173452314560
1978-09-01	1.814183617372180
1978-10-01	1.580381471389650
1978-11-01	1.556420233463040
1978-12-01	1.600914808461980
1979-01-01	1.856148491879350
1979-02-01	1.870251315020460
1979-03-01	2.010338885697880
1979-04-01	1.879491431730240
1979-05-01	1.662198391420910
1979-06-01	1.557465091299680
1979-07-01	1.674770394381420
1979-08-01	1.682040151926210
1979-09-01	1.679306608884070
1979-10-01	1.656867985034740
1979-11-01	1.692139737991270
1979-12-01	1.577464788732390
1980-01-01	1.729106628242070
1980-02-01	1.660939289805270
1980-03-01	2.020202020202020
1980-04-01	1.829924650161460
1980-05-01	1.699415825809880
1980-06-01	1.633298208640670
1980-07-01	1.752522570366440
1980-08-01	1.814300960512270
1980-09-01	1.801801801801800
1980-10-01	1.655098772023490
1980-11-01	1.737242128121610
1980-12-01	1.781737193763920
1981-01-01	1.879271070615030
1981-02-01	2.109464082098060
1981-03-01	2.119353039598440
1981-04-01	1.916932907348240
1981-05-01	1.939203354297690
1981-06-01	1.998947922146240
1981-07-01	1.740506329113920
1981-08-01	1.588141874007410
1981-09-01	1.678028316727840
1981-10-01	1.664932362122790
1981-11-01	1.732283464566930
1981-12-01	1.716738197424890
1982-01-01	1.874310915104740
1982-02-01	1.816180517336270
1982-03-01	1.989247311827960
1982-04-01	2.095337873232060
1982-05-01	1.989795918367350
1982-06-01	1.893551688843400
1982-07-01	1.872074882995320
1982-08-01	1.773604590506000
1982-09-01	2.007205352547610
1982-10-01	2.036659877800410
1982-11-01	1.923076923076920
1982-12-01	1.944298476090380
1983-01-01	2.500000000000000
1983-02-01	2.500000000000000
1983-03-01	2.506527415143600
1983-04-01	2.437785678009140
1983-05-01	2.284011916583910
1983-06-01	2.143569292123630
1983-07-01	2.259036144578310
1983-08-01	2.406015037593980
1983-09-01	2.326732673267330
1983-10-01	2.171767028627840
1983-11-01	2.173913043478260
1983-12-01	2.195504443282800
1984-01-01	2.620320855614970
1984-02-01	2.606382978723400
1984-03-01	2.684563758389260
1984-04-01	2.404809619238480
1984-05-01	2.375061850569020
1984-06-01	2.406679764243620
1984-07-01	2.326732673267330
1984-08-01	2.300000000000000
1984-09-01	2.107843137254900
1984-10-01	2.289332683877250
1984-11-01	2.291978076731440
1984-12-01	2.112313240597630
1985-01-01	2.509147935180350
1985-02-01	2.388369678089300
1985-03-01	2.448979591836730
1985-04-01	2.270483711747280
1985-05-01	2.327837051406400
1985-06-01	2.387914230019490
1985-07-01	2.253797158255760
1985-08-01	2.115100836202660
1985-09-01	2.186588921282800
1985-10-01	2.143205065757430
1985-11-01	2.238805970149250
1985-12-01	2.222222222222220
1986-01-01	2.542812662169170
1986-02-01	2.467866323907460
1986-03-01	2.680829539706630
1986-04-01	2.643171806167400
1986-05-01	2.328966521106260
1986-06-01	2.270531400966180
1986-07-01	2.324455205811140
1986-08-01	2.493887530562350
1986-09-01	2.378640776699030
1986-10-01	2.230843840931130
1986-11-01	2.169625246548320
1986-12-01	2.373737373737370
1987-01-01	2.766393442622950
1987-02-01	2.702702702702700
1987-03-01	2.745881178232650
1987-04-01	2.848865282472240
1987-05-01	2.715578847070030
1987-06-01	2.384358607534570
1987-07-01	1.971153846153850
1987-08-01	2.124577498792850
1987-09-01	2.253116011505270
1987-10-01	2.250957854406130
1987-11-01	2.172863351038150
1987-12-01	2.160039273441340
1988-01-01	2.542372881355930
1988-02-01	2.450000000000000
1988-03-01	2.357563850687620
1988-04-01	2.142857142857140
1988-05-01	2.153558052434460
1988-06-01	1.928504233301980
1988-07-01	1.973684210526320
1988-08-01	2.369668246445500
1988-09-01	2.263083451202260
1988-10-01	2.219074598678000
1988-11-01	2.106270943034940
1988-12-01	2.041808458920760
1989-01-01	2.269363591514550
1989-02-01	2.256007846983820
1989-03-01	2.312138728323700
1989-04-01	2.109704641350210
1989-05-01	1.977011494252870
1989-06-01	1.788170563961490
1989-07-01	1.748734468476760
1989-08-01	1.900788131664350
1989-09-01	1.798063623789760
1989-10-01	1.933701657458560
1989-11-01	1.906090190609020
1989-12-01	1.654846335697400
1990-01-01	2.242366412213740
1990-02-01	1.942207484604450
1990-03-01	1.679104477611940
1990-04-01	1.961678832116790
1990-05-01	1.936064835659610
1990-06-01	1.755965781179650
1990-07-01	1.670428893905190
1990-08-01	1.821493624772310
1990-09-01	1.846846846846850
1990-10-01	1.860254083484570
1990-11-01	1.737540009144950
1990-12-01	1.575532900834110
1991-01-01	1.721731037691950
1991-02-01	1.724137931034480
1991-03-01	1.928374655647380
1991-04-01	2.073005858494820
1991-05-01	1.911960871498440
1991-06-01	1.846153846153850
1991-07-01	1.731793960923620
1991-08-01	1.778568252556690
1991-09-01	2.034498009730210
1991-10-01	2.003561887800530
1991-11-01	1.877514528386230
1991-12-01	1.586582048957390
1992-01-01	1.945345067160720
1992-02-01	1.872146118721460
1992-03-01	2.135393003180370
1992-04-01	1.880877742946710
1992-05-01	1.764446404940450
1992-06-01	1.615720524017470
1992-07-01	1.731025299600530
1992-08-01	1.818181818181820
1992-09-01	2.015775635407540
1992-10-01	1.880192391779620
1992-11-01	2.065026362038660
1992-12-01	1.973094170403590
1993-01-01	2.203856749311290
1993-02-01	2.168897092754960
1993-03-01	2.182810368349250
1993-04-01	2.006241640659830
1993-05-01	2.102496714848880
1993-06-01	1.924759405074370
1993-07-01	1.986754966887420
1993-08-01	2.118270079435130
1993-09-01	2.239789196310940
1993-10-01	2.237823606845110
1993-11-01	2.380952380952380
1993-12-01	2.368185880250220
1994-01-01	2.669683257918550
1994-02-01	2.829758101323600
1994-03-01	2.574525745257450
1994-04-01	2.364273204903680
1994-05-01	2.420051858254110
1994-06-01	2.248162559446610
1994-07-01	2.274715660542430
1994-08-01	2.690780767534190
1994-09-01	2.551693796744390
1994-10-01	2.537182852143480
1994-11-01	2.564102564102560
1994-12-01	2.351876978742650
1995-01-01	2.672101449275360
1995-02-01	2.622061482820980
1995-03-01	2.685765443151300
1995-04-01	2.620087336244540
1995-05-01	2.677029360967180
1995-06-01	2.664374731413840
1995-07-01	2.476107732406600
1995-08-01	2.713347921225380
1995-09-01	2.891670263271470
1995-10-01	2.924487123526840
1995-11-01	2.790079716563330
1995-12-01	2.688172043010750
1996-01-01	2.974312753492560
1996-02-01	2.858439201451910
1996-03-01	2.658396101019050
1996-04-01	3.034243606415260
1996-05-01	2.758620689655170
1996-06-01	2.647309991460290
1996-07-01	2.735042735042740
1996-08-01	2.770562770562770
1996-09-01	2.767134951043000
1996-10-01	2.810902896081770
1996-11-01	2.817511920242740
1996-12-01	2.686041391457510
1997-01-01	2.948943661971830
1997-02-01	2.979842243645920
1997-03-01	2.817511920242740
1997-04-01	2.938671209540030
1997-05-01	3.189257238774650
1997-06-01	2.904564315352700
1997-07-01	2.759197324414720
1997-08-01	2.921253175275190
1997-09-01	2.853545950482580
1997-10-01	2.965747702589810
1997-11-01	2.903501280956450
1997-12-01	2.715517241379310
1998-01-01	2.846054333764550
1998-02-01	2.996092053842810
1998-03-01	3.290598290598290
1998-04-01	3.541315345699830
1998-05-01	3.446843853820600
1998-06-01	3.564028180687940
1998-07-01	3.516115529510260
1998-08-01	3.802758044295860
1998-09-01	3.709879116298460
1998-10-01	3.870162297128590
1998-11-01	3.769589157136810
1998-12-01	3.242542153047990
1999-01-01	3.734259661311330
1999-02-01	4.079861111111110
1999-03-01	4.182671788305590
1999-04-01	4.098703471350900
1999-05-01	3.863730785209800
1999-06-01	3.913405495420480
1999-07-01	3.924843423799580
1999-08-01	3.943545039435450
1999-09-01	4.095986760446840
1999-10-01	3.955037468776020
1999-11-01	3.557974047718710
1999-12-01	3.421727972626180
2000-01-01	4.032604032604030
2000-02-01	4.136148211977600
2000-03-01	4.123711340206180
2000-04-01	4.387797743418300
2000-05-01	4.175279040926000
2000-06-01	4.000000000000000
2000-07-01	3.775933609958510
2000-08-01	3.908523908523910
2000-09-01	3.996669442131560
2000-10-01	3.823773898586870
2000-11-01	3.696013289036540
2000-12-01	3.432203389830510
2001-01-01	4.098014364174060
2001-02-01	4.045512010113780
2001-03-01	4.055766793409380
2001-04-01	4.177109440267340
2001-05-01	4.202719406674910
2001-06-01	4.062371768567910
2001-07-01	4.047914085088810
2001-08-01	4.282744282744280
2001-09-01	4.641525072523830
2001-10-01	4.252683732452520
2001-11-01	4.303278688524590
2001-12-01	4.105571847507330
2002-01-01	4.591836734693880
2002-02-01	4.854368932038830
2002-03-01	4.821802935010480
2002-04-01	4.646295521138550
2002-05-01	4.811281625881380
2002-06-01	4.665565648224610
2002-07-01	4.526578073089700
2002-08-01	4.535996670828130
2002-09-01	4.633843607778240
2002-10-01	4.624277456647400
2002-11-01	4.333470903838220
2002-12-01	4.208754208754210
2003-01-01	4.970263381478330
2003-02-01	4.555129842486160
2003-03-01	4.422194409678760
2003-04-01	4.694640631491480
2003-05-01	4.732510288065840
2003-06-01	4.231082180634660
2003-07-01	4.349610176446450
2003-08-01	4.378356051218500
2003-09-01	4.410552349546580
2003-10-01	4.433497536945810
2003-11-01	4.273858921161830
2003-12-01	3.825136612021860
2004-01-01	4.182509505703420
2004-02-01	4.214075010535190
2004-03-01	3.985056039850560
2004-04-01	4.226508001641360
2004-05-01	4.175194433074090
2004-06-01	3.811475409836070
2004-07-01	3.802125919869170
2004-08-01	4.114052953156820
2004-09-01	3.918367346938780
2004-10-01	3.957568339453280
2004-11-01	3.572912339011220
2004-12-01	3.397651006711410
2005-01-01	3.966597077244260
2005-02-01	3.896103896103900
2005-03-01	3.971571906354520
2005-04-01	3.940886699507390
2005-05-01	3.953206938281560
2005-06-01	3.421588594704680
2005-07-01	3.726204941271770
2005-08-01	3.783563873067540
2005-09-01	3.796445880452340
2005-10-01	4.045307443365700
2005-11-01	3.904644471845460
2005-12-01	3.375000000000000
2006-01-01	3.742203742203740
2006-02-01	3.323639385126710
2006-03-01	3.569946035699460
2006-04-01	3.609515996718620
2006-05-01	3.585817888799360
2006-06-01	3.484602917341980
2006-07-01	3.375355835705570
2006-08-01	3.580048270313760
2006-09-01	3.562850280224180
2006-10-01	3.486973947895790
2006-11-01	3.225806451612900
2006-12-01	3.113478082752970
2007-01-01	3.448275862068960
2007-02-01	3.436853002070390
2007-03-01	3.602128530495290
2007-04-01	3.512313282196200
2007-05-01	3.386454183266930
2007-06-01	3.006012024048100
2007-07-01	2.947113443681870
2007-08-01	3.249097472924190
2007-09-01	3.453815261044180
2007-10-01	3.605769230769230
2007-11-01	3.156212544946060
2007-12-01	2.948303715670440
2008-01-01	3.400245800901270
2008-02-01	3.385631709331130
2008-03-01	3.667481662591690
2008-04-01	3.775100401606430
2008-05-01	3.541583764424990
2008-06-01	3.534551231135820
2008-07-01	3.350618268847230
2008-08-01	3.724469363235880
2008-09-01	3.682946357085670
2008-10-01	3.338696701528560
2008-11-01	3.282626100880700
2008-12-01	3.598867771936920
2009-01-01	3.807209396516810
2009-02-01	3.920776071139850
2009-03-01	4.368932038834950
2009-04-01	4.365238285943130
2009-05-01	4.491255961844200
2009-06-01	4.425837320574160
2009-07-01	4.510978043912180
2009-08-01	4.733727810650890
2009-09-01	4.913522012578620
2009-10-01	4.572564612326040
2009-11-01	4.396482813749000
2009-12-01	4.281098546042000
2010-01-01	4.356595401371520
2010-02-01	4.114562323517550
2010-03-01	4.101326899879370
2010-04-01	4.525605398967840
2010-05-01	4.262036306235200
2010-06-01	4.304503786369070
2010-07-01	4.097056483691330
2010-08-01	4.464638482813120
2010-09-01	4.107981220657280
2010-10-01	4.160125588697020
2010-11-01	3.979307600477520
2010-12-01	3.739445114595900
2011-01-01	3.816793893129770
2011-02-01	3.966346153846150
2011-03-01	3.904991948470210
2011-04-01	4.070231444533120
2011-05-01	4.015904572564610
2011-06-01	4.290822407628130
2011-07-01	3.988831272437180
2011-08-01	3.992015968063870
2011-09-01	3.593996840442340
2011-10-01	3.664302600472810
2011-11-01	3.565768621236130
2011-12-01	3.366733466933870
2012-01-01	3.782696177062370
2012-02-01	3.722978382706160
2012-03-01	3.760000000000000
2012-04-01	3.931691818903890
2012-05-01	4.056715242221350
2012-06-01	3.800475059382420
2012-07-01	3.663878932696140
2012-08-01	3.624054161688570
2012-09-01	3.592577970785630
2012-10-01	3.582677165354330
2012-11-01	3.392504930966470
2012-12-01	3.393213572854290
2013-01-01	3.463375796178340
2013-02-01	3.639240506329110
2013-03-01	3.283227848101270
2013-04-01	3.687720674774420
2013-05-01	3.862660944206010
2013-06-01	3.495679497250590
2013-07-01	3.237268061587050
2013-08-01	3.567228537828300
2013-09-01	3.334625823962780
2013-10-01	3.509448515233320
2013-11-01	3.238242097147260
2013-12-01	3.044496487119440
2014-01-01	3.150846790074830
2014-02-01	3.185214313802600
2014-03-01	3.188976377952760
2014-04-01	3.516998827667060
2014-05-01	3.440278314650170
2014-06-01	3.352601156069360
2014-07-01	3.413498836307220
2014-08-01	3.072734344612990
2014-09-01	3.187403993855610
2014-10-01	3.059273422562140
2014-11-01	2.725527831094050
2014-12-01	2.748741773132020
2015-01-01	2.883865939204990
2015-02-01	2.941176470588240
2015-03-01	2.867105772956220
2015-04-01	3.268482490272370
2015-05-01	3.036126056879320
2015-06-01	2.977099236641220
2015-07-01	2.959262106072250
2015-08-01	3.069838833461240
2015-09-01	2.957906712172920
2015-10-01	2.513328255902510
2015-11-01	2.806612841214920
2015-12-01	2.582883577486510
2016-01-01	2.681992337164750
2016-02-01	2.586872586872590
2016-03-01	2.584876543209880
2016-04-01	3.078106964217010
2016-05-01	2.898550724637680
2016-06-01	2.896914973664410
2016-07-01	2.676215604975500
2016-08-01	2.614626752557790
2016-09-01	2.559277380504330
2016-10-01	2.454682779456190
2016-11-01	2.688375615297240
2016-12-01	2.276176024279210
2017-01-01	2.547528517110270
2017-02-01	2.447418738049710
2017-03-01	2.398172820708030
2017-04-01	2.645502645502650
2017-05-01	2.765321375186850
2017-06-01	2.632554690396740
2017-07-01	2.312569936590820
2017-08-01	2.383612662942270
2017-09-01	2.514792899408280
2017-10-01	2.410979228486650
2017-11-01	2.298850574712640
2017-12-01	2.199850857568980
2018-01-01	2.055306427503740
2018-02-01	2.156133828996280
2018-03-01	2.171512697828490
2018-04-01	2.227090178897410
2018-05-01	2.089442815249270
2018-06-01	2.203452074917370
2018-07-01	2.095588235294120
2018-08-01	2.191380569758950
2018-09-01	2.170767004341530