Month	Percent
1968-01-01	25.6003842459174
1968-02-01	25.9108341323106
1968-03-01	24.6765692381409
1968-04-01	23.3691756272401
1968-05-01	22.5244571701265
1968-06-01	22.2407628128725
1968-07-01	22.7326826945965
1968-08-01	23.1956315289649
1968-09-01	23.0258477590704
1968-10-01	22.7821149751597
1968-11-01	23.2585596221960
1968-12-01	25.0589900896649
1969-01-01	26.2600094206312
1969-02-01	25.7996237064911
1969-03-01	24.7417840375587
1969-04-01	23.5114861697140
1969-05-01	22.8952291861553
1969-06-01	22.6635514018692
1969-07-01	23.2959850606909
1969-08-01	23.7895716945996
1969-09-01	23.0805025593299
1969-10-01	23.2752613240418
1969-11-01	23.8625812441968
1969-12-01	25.0405750057964
1970-01-01	26.0537285780454
1970-02-01	26.0587826891923
1970-03-01	24.7861271676301
1970-04-01	23.4003234003234
1970-05-01	22.8907330567082
1970-06-01	23.0999539382773
1970-07-01	23.4454168585905
1970-08-01	23.9420423183073
1970-09-01	23.5523897058824
1970-10-01	23.4848484848485
1970-11-01	24.3230839834787
1970-12-01	25.4248966467616
1971-01-01	26.1439411358933
1971-02-01	26.2129225109221
1971-03-01	24.5577762462669
1971-04-01	24.2765273311897
1971-05-01	24.1513761467890
1971-06-01	24.1016250858320
1971-07-01	24.1253144294535
1971-08-01	24.4637151985395
1971-09-01	24.6812386156648
1971-10-01	24.3353783231084
1971-11-01	24.3476287724075
1971-12-01	25.5555555555556
1972-01-01	26.0555430119666
1972-02-01	26.4138240574506
1972-03-01	25.7782754759239
1972-04-01	25.0391236306729
1972-05-01	24.2424242424242
1972-06-01	24.1555555555556
1972-07-01	24.2137673191115
1972-08-01	24.3806182854637
1972-09-01	24.2291712223923
1972-10-01	23.6102027468934
1972-11-01	24.4130434782609
1972-12-01	24.9837062785140
1973-01-01	25.4108996539792
1973-02-01	25.1240025878801
1973-03-01	24.7256294383473
1973-04-01	24.3289671462315
1973-05-01	23.9042121017746
1973-06-01	23.3838276082782
1973-07-01	23.6685129953132
1973-08-01	24.2089615629645
1973-09-01	23.9830508474576
1973-10-01	22.8378092620004
1973-11-01	23.6137465738984
1973-12-01	25.5578947368421
1974-01-01	25.9484384824984
1974-02-01	25.6528096929183
1974-03-01	25.0052181173033
1974-04-01	24.4064972927947
1974-05-01	24.0248962655602
1974-06-01	23.9544513457557
1974-07-01	24.5915201654602
1974-08-01	24.7422680412371
1974-09-01	24.7378161628624
1974-10-01	24.4147843942505
1974-11-01	24.7080516287646
1974-12-01	26.0789527510738
1975-01-01	27.0871606450296
1975-02-01	26.5675895765472
1975-03-01	25.8754071661238
1975-04-01	25.6092607636068
1975-05-01	24.5290662345554
1975-06-01	23.9086499595796
1975-07-01	24.3690692509590
1975-08-01	24.7985495568090
1975-09-01	24.5427135678392
1975-10-01	24.5184590690209
1975-11-01	24.8546802966526
1975-12-01	25.7600000000000
1976-01-01	26.5656162744316
1976-02-01	26.1112218457245
1976-03-01	25.5725951005776
1976-04-01	25.0944521773712
1976-05-01	24.4545815152717
1976-06-01	24.0047534165181
1976-07-01	24.1030723488603
1976-08-01	24.4071146245059
1976-09-01	24.2412297989752
1976-10-01	23.9550473186120
1976-11-01	24.4926108374384
1976-12-01	25.1130776794494
1977-01-01	25.7456828885400
1977-02-01	25.7154057232458
1977-03-01	25.1078008624069
1977-04-01	23.9522130826479
1977-05-01	23.4283483014448
1977-06-01	23.2390243902439
1977-07-01	23.4536585365854
1977-08-01	23.9875389408100
1977-09-01	23.6391912908243
1977-10-01	23.3592233009709
1977-11-01	23.8206173558532
1977-12-01	24.4418559503009
1978-01-01	25.2040419743490
1978-02-01	24.7620897261604
1978-03-01	24.3106796116505
1978-04-01	23.6377738995540
1978-05-01	22.6199690402477
1978-06-01	22.3618090452261
1978-07-01	22.9891724671307
1978-08-01	23.4510712217719
1978-09-01	23.1140266255065
1978-10-01	22.7211408749277
1978-11-01	23.0828516377649
1978-12-01	23.8003468876469
1979-01-01	24.1578440808470
1979-02-01	24.2540904716073
1979-03-01	24.0477106579454
1979-04-01	23.0044239276784
1979-05-01	22.3524889486834
1979-06-01	22.3459397197159
1979-07-01	22.3972339608144
1979-08-01	22.7831094049904
1979-09-01	22.7316324573182
1979-10-01	22.1434049079755
1979-11-01	22.5392569896591
1979-12-01	23.3908045977011
1980-01-01	23.9371888165454
1980-02-01	23.8651599310477
1980-03-01	23.6680720582599
1980-04-01	22.7281423378611
1980-05-01	22.3772214790751
1980-06-01	22.1012416427889
1980-07-01	22.3326959847036
1980-08-01	22.6847431735727
1980-09-01	22.3812249570693
1980-10-01	22.1544327931363
1980-11-01	22.4404194470925
1980-12-01	23.0519480519481
1981-01-01	23.7414187643021
1981-02-01	23.7650200267023
1981-03-01	23.2074752097635
1981-04-01	22.3197252956887
1981-05-01	21.9512195121951
1981-06-01	22.1523809523810
1981-07-01	22.2666666666667
1981-08-01	22.5984401750048
1981-09-01	22.4377258033847
1981-10-01	21.9855458349182
1981-11-01	22.0087502377782
1981-12-01	22.4318658280922
1982-01-01	22.9801829268293
1982-02-01	22.9773462783172
1982-03-01	22.4065598779558
1982-04-01	21.8368902439024
1982-05-01	21.5033301617507
1982-06-01	21.6308686561490
1982-07-01	22.1419060300552
1982-08-01	22.3404255319149
1982-09-01	21.7746532395972
1982-10-01	21.3756412692381
1982-11-01	21.7656012176560
1982-12-01	21.6720624642925
1983-01-01	22.0680478996389
1983-02-01	22.2856056284465
1983-03-01	21.7838765008576
1983-04-01	21.1007427156732
1983-05-01	20.7500475918523
1983-06-01	20.8824648155192
1983-07-01	20.9744956223829
1983-08-01	20.8705569283406
1983-09-01	20.6837606837607
1983-10-01	20.6050228310502
1983-11-01	21.1077274457556
1983-12-01	21.8285714285714
1984-01-01	22.2772277227723
1984-02-01	22.2095238095238
1984-03-01	21.6138878290729
1984-04-01	21.0556402439024
1984-05-01	20.6515526767003
1984-06-01	20.3047619047619
1984-07-01	20.6476190476190
1984-08-01	20.8333333333333
1984-09-01	20.3724819460281
1984-10-01	20.1330798479087
1984-11-01	20.5211106884747
1984-12-01	21.3183463516860
1985-01-01	21.6447744146202
1985-02-01	21.8119527978683
1985-03-01	21.5701219512195
1985-04-01	20.6784829426339
1985-05-01	20.3883495145631
1985-06-01	20.3848352067060
1985-07-01	20.6134501809869
1985-08-01	20.7586732748761
1985-09-01	20.2587026821381
1985-10-01	20.2738683910232
1985-11-01	20.6883437915954
1985-12-01	21.7209213782600
1986-01-01	21.5876641918903
1986-02-01	21.5563165905632
1986-03-01	21.1087826252620
1986-04-01	20.2898550724638
1986-05-01	20.1989288446825
1986-06-01	20.1261467889908
1986-07-01	20.2439954250858
1986-08-01	20.3276814631358
1986-09-01	20.3235014272122
1986-10-01	20.3122025509233
1986-11-01	20.7093821510297
1986-12-01	21.3468141930561
1987-01-01	21.6288384512684
1987-02-01	21.4381079534618
1987-03-01	20.8428680396644
1987-04-01	19.9542159481114
1987-05-01	19.8929868144468
1987-06-01	19.9120122417751
1987-07-01	19.9885452462772
1987-08-01	20.1411405683769
1987-09-01	20.0572519083969
1987-10-01	20.0152788388082
1987-11-01	20.2024059576093
1987-12-01	20.4319571865443
1988-01-01	20.7601222307105
1988-02-01	20.7529141983566
1988-03-01	20.4288722956155
1988-04-01	19.6558317399618
1988-05-01	19.3277310924370
1988-06-01	19.3610101396595
1988-07-01	19.2469418960245
1988-08-01	19.7247706422018
1988-09-01	19.8205079243842
1988-10-01	19.8168987221057
1988-11-01	19.8474737845567
1988-12-01	20.0114788597666
1989-01-01	20.4628035953337
1989-02-01	20.0841622035195
1989-03-01	19.7665518561041
1989-04-01	19.1187739463602
1989-05-01	18.6042065009560
1989-06-01	18.5744314924517
1989-07-01	18.8513642434650
1989-08-01	19.2865318580694
1989-09-01	19.2263719512195
1989-10-01	19.1156851534210
1989-11-01	19.0803281816447
1989-12-01	19.3967163039328
1990-01-01	19.3930139339569
1990-02-01	19.2094710712240
1990-03-01	19.0903879227976
1990-04-01	18.7488042854410
1990-05-01	18.3498475609756
1990-06-01	18.3864199885562
1990-07-01	18.7833714721587
1990-08-01	19.1501524390244
1990-09-01	18.5241536705972
1990-10-01	18.6086295381106
1990-11-01	18.6666666666667
1990-12-01	18.9622281571919
1991-01-01	19.0112616911624
1991-02-01	18.8574703859381
1991-03-01	18.7249475090666
1991-04-01	18.4406650105102
1991-05-01	18.0757459831676
1991-06-01	18.0340409256072
1991-07-01	18.5241827566431
1991-08-01	18.5624163639839
1991-09-01	18.1314482231563
1991-10-01	17.9923518164436
1991-11-01	17.7641653905054
1991-12-01	18.0510262804527
1992-01-01	18.7883435582822
1992-02-01	18.4653654802909
1992-03-01	18.5000956571647
1992-04-01	18.1226053639847
1992-05-01	17.8844682478959
1992-06-01	17.9492075615811
1992-07-01	18.4386333269708
1992-08-01	18.6534426854854
1992-09-01	18.2771107299409
1992-10-01	17.5023832221163
1992-11-01	17.5595805529075
1992-12-01	18.0584750621059
1993-01-01	18.7941232589201
1993-02-01	19.2755004766444
1993-03-01	19.0385349103396
1993-04-01	18.1974412831774
1993-05-01	17.8353658536585
1993-06-01	18.0537040563702
1993-07-01	18.5692541856925
1993-08-01	18.6240973014063
1993-09-01	18.1887222327701
1993-10-01	17.8123813140904
1993-11-01	17.8490136570561
1993-12-01	18.2128628343768
1994-01-01	18.7452615617892
1994-02-01	19.1207125260565
1994-03-01	18.9763033175355
1994-04-01	18.2283763277693
1994-05-01	17.6414915767556
1994-06-01	17.8895612708018
1994-07-01	18.5290224995273
1994-08-01	18.8479697828140
1994-09-01	18.3619550858653
1994-10-01	18.0101944496885
1994-11-01	18.4821597130451
1994-12-01	19.1123701605288
1995-01-01	19.2568841946435
1995-02-01	19.1051538606759
1995-03-01	18.9235127478754
1995-04-01	18.5066162570888
1995-05-01	18.1097906055461
1995-06-01	17.9197286602600
1995-07-01	18.2418411620449
1995-08-01	18.5673892554194
1995-09-01	18.0225988700565
1995-10-01	18.1510073432499
1995-11-01	18.5770750988142
1995-12-01	18.7523558235959
1996-01-01	18.9418188665035
1996-02-01	19.0081086177635
1996-03-01	18.2675976599358
1996-04-01	17.9225684608121
1996-05-01	17.9694857788661
1996-06-01	17.6991150442478
1996-07-01	17.7844762622457
1996-08-01	18.2382834556748
1996-09-01	17.7422389463782
1996-10-01	17.6824680210685
1996-11-01	18.1783966879940
1996-12-01	18.3669620969263
1997-01-01	18.1356887803045
1997-02-01	18.0109043053205
1997-03-01	17.8759398496241
1997-04-01	17.4976481655691
1997-05-01	17.3488546751784
1997-06-01	17.0919324577861
1997-07-01	17.5300300300300
1997-08-01	17.9174484052533
1997-09-01	17.3383317713215
1997-10-01	17.2504214272336
1997-11-01	18.0149812734082
1997-12-01	18.0453948602514
1998-01-01	17.9093293368303
1998-02-01	18.2328715836765
1998-03-01	17.9895170348184
1998-04-01	17.8598200899550
1998-05-01	17.5799513746026
1998-06-01	17.3490372032156
1998-07-01	17.8965066317953
1998-08-01	17.8338001867414
1998-09-01	17.6097105508870
1998-10-01	17.5910364145658
1998-11-01	17.8917910447761
1998-12-01	18.4436962214740
1999-01-01	18.5911808669656
1999-02-01	18.5724962630792
1999-03-01	18.2039289055192
1999-04-01	17.7748642067803
1999-05-01	17.7890011223345
1999-06-01	17.7923292797007
1999-07-01	18.0153242384601
1999-08-01	17.7645083037880
1999-09-01	17.4748228273032
1999-10-01	17.6240208877285
1999-11-01	17.6229508196721
1999-12-01	18.1953765846383
2000-01-01	18.5639880952381
2000-02-01	18.5990338164251
2000-03-01	18.5453869047619
2000-04-01	17.7872974483144
2000-05-01	17.5278810408922
2000-06-01	17.5520059435364
2000-07-01	17.8120356612184
2000-08-01	17.9439599183522
2000-09-01	17.8836174944403
2000-10-01	17.7995925171328
2000-11-01	17.4958387275754
2000-12-01	17.9634078728516
2001-01-01	17.8545051698671
2001-02-01	17.7818853974122
2001-03-01	18.2890855457227
2001-04-01	17.9487179487180
2001-05-01	17.4609015639374
2001-06-01	17.4089068825911
2001-07-01	17.7303660106676
2001-08-01	17.9109966899595
2001-09-01	17.7736890524379
2001-10-01	17.6286764705882
2001-11-01	17.3066323718538
2001-12-01	17.9123711340206
2002-01-01	18.4774575018477
2002-02-01	18.3046455672774
2002-03-01	18.0571004820171
2002-04-01	17.9840059512739
2002-05-01	18.0400890868597
2002-06-01	17.8544914625093
2002-07-01	17.8013392857143
2002-08-01	17.8737665239248
2002-09-01	17.7773641102010
2002-10-01	17.3775377165208
2002-11-01	17.1737913011014
2002-12-01	17.8177054089463
2003-01-01	18.2533733133433
2003-02-01	18.4858162690212
2003-03-01	17.9376408715252
2003-04-01	17.8221552373775
2003-05-01	17.4534511942825
2003-06-01	17.2245204964272
2003-07-01	17.5362591825202
2003-08-01	17.7346400301545
2003-09-01	17.7258155760890
2003-10-01	17.2771903323263
2003-11-01	17.3756853847608
2003-12-01	17.7162367223065
2004-01-01	17.8781552476751
2004-02-01	17.8965386078357
2004-03-01	18.0019029495718
2004-04-01	17.8306374881066
2004-05-01	17.3813607775872
2004-06-01	17.3040152963671
2004-07-01	17.5176898068464
2004-08-01	17.3846448401302
2004-09-01	17.4329501915709
2004-10-01	17.2612197928654
2004-11-01	17.7001343827990
2004-12-01	18.0523479599692
2005-01-01	17.8633301251203
2005-02-01	17.8929121725732
2005-03-01	17.7640471133423
2005-04-01	17.4342105263158
2005-05-01	16.9079328314997
2005-06-01	17.0887299439397
2005-07-01	17.1279272305013
2005-08-01	17.4603174603175
2005-09-01	17.0472136222910
2005-10-01	16.7183262301434
2005-11-01	17.5329712955780
2005-12-01	17.8620019436346
2006-01-01	17.5680933852140
2006-02-01	17.5428348909657
2006-03-01	17.3929961089494
2006-04-01	17.0117187500000
2006-05-01	16.5464821672189
2006-06-01	16.9134840218239
2006-07-01	17.1155347384856
2006-08-01	16.8651180948663
2006-09-01	16.7414634146341
2006-10-01	16.6406554818572
2006-11-01	16.9332813109637
2006-12-01	17.2764625317942
2007-01-01	17.4759190092392
2007-02-01	17.4340810704447
2007-03-01	16.8734002756448
2007-04-01	16.3546798029557
2007-05-01	15.9637366968861
2007-06-01	16.3120567375887
2007-07-01	16.7028199566161
2007-08-01	16.7192429022082
2007-09-01	16.5515880844348
2007-10-01	16.3084204298955
2007-11-01	16.2391475927388
2007-12-01	16.4594434576673
2008-01-01	16.7325167917819
2008-02-01	16.9008509796161
2008-03-01	16.8679469411998
2008-04-01	16.5642956211611
2008-05-01	16.3103721298496
2008-06-01	16.2574257425743
2008-07-01	16.5577342047930
2008-08-01	16.5379283026342
2008-09-01	16.3431061806656
2008-10-01	16.3629160063391
2008-11-01	16.0855784469097
2008-12-01	16.2103174603175
2009-01-01	16.3358475585550
2009-02-01	16.4680174811283
2009-03-01	16.5374677002584
2009-04-01	16.3253131835355
2009-05-01	16.2027833001988
2009-06-01	16.2490055688146
2009-07-01	16.2591930033790
2009-08-01	15.7622739018088
2009-09-01	15.5100417578047
2009-10-01	15.6293497713263
2009-11-01	15.8774373259053
2009-12-01	16.2651801712124
2010-01-01	16.2943757479059
2010-02-01	16.1876247504990
2010-03-01	16.0710720702735
2010-04-01	15.7137145141943
2010-05-01	15.6150159744409
2010-06-01	15.9912158115392
2010-07-01	15.8378270421410
2010-08-01	15.6612065521374
2010-09-01	15.3584981026563
2010-10-01	15.4921141944500
2010-11-01	15.7579388855602
2010-12-01	16.2874251497006
2011-01-01	16.0807031562125
2011-02-01	15.8536585365854
2011-03-01	15.7491429723735
2011-04-01	15.5026241421074
2011-05-01	15.3427419354839
2011-06-01	15.2217741935484
2011-07-01	15.5613787542834
2011-08-01	15.7033144704931
2011-09-01	15.7567242071457
2011-10-01	15.5234657039711
2011-11-01	15.7504012841092
2011-12-01	16.2183861902850
2012-01-01	16.2622819330259
2012-02-01	16.4158137668071
2012-03-01	16.3187474909675
2012-04-01	15.7492969063881
2012-05-01	15.6011258544431
2012-06-01	15.4232857430123
2012-07-01	15.9429030960997
2012-08-01	16.1471948522019
2012-09-01	15.7185929648241
2012-10-01	15.5175879396985
2012-11-01	15.7217531162043
2012-12-01	16.2173038229376
2013-01-01	15.6760024178924
2013-02-01	15.7151502925156
2013-03-01	15.6842955187727
2013-04-01	15.0535461709436
2013-05-01	14.8858816400727
2013-06-01	15.0070692789336
2013-07-01	15.3566377045868
2013-08-01	15.3628461693956
2013-09-01	14.8312790462720
2013-10-01	14.5513338722716
2013-11-01	14.7362037598545
2013-12-01	14.8320518008903
2014-01-01	15.1570415400203
2014-02-01	15.1896167106064
2014-03-01	15.1675126903553
2014-04-01	14.8343832554359
2014-05-01	14.4453474197481
2014-06-01	14.6167920309006
2014-07-01	14.9359886201991
2014-08-01	14.9450996339976
2014-09-01	14.3350955673038
2014-10-01	14.0561432058584
2014-11-01	14.4833197721725
2014-12-01	14.6142886220232
2015-01-01	14.8389726865063
2015-02-01	14.6500714139971
2015-03-01	14.5773785218456
2015-04-01	14.8897058823529
2015-05-01	14.4900878806458
2015-06-01	14.2273933455807
2015-07-01	14.5309625996321
2015-08-01	14.5777959517481
2015-09-01	13.8269584782164
2015-10-01	13.9235330198323
2015-11-01	14.3441784325762
2015-12-01	14.2183978692891
2016-01-01	13.9139344262295
2016-02-01	14.3033039195567
2016-03-01	14.4323547526175
2016-04-01	14.2298992391528
2016-05-01	14.1212744090442
2016-06-01	13.8363486842105
2016-07-01	13.7186343068696
2016-08-01	13.7065239761268
2016-09-01	13.5530381050463
2016-10-01	13.6681762041993
2016-11-01	13.4678747940692
2016-12-01	13.4405277262420
2017-01-01	13.7319587628866
2017-02-01	13.9083780437474
2017-03-01	13.8992152003304
2017-04-01	13.7125129265770
2017-05-01	13.3402275077559
2017-06-01	13.2602399669011
2017-07-01	13.3374689826303
2017-08-01	13.3485099337748
2017-09-01	13.0560728326091
2017-10-01	12.8390971215573
2017-11-01	12.6967688483844
2017-12-01	12.9694957460054
2018-01-01	13.1934344483690
2018-02-01	12.9159733777038
2018-03-01	12.5936719400500
2018-04-01	12.4791666666667
2018-05-01	12.6901437799542
2018-06-01	12.7212159067250
2018-07-01	12.5521267723103
2018-08-01	12.5026090586516
2018-09-01	12.1193158114310