Month	Percent
1978-02-01	38.3327957886713
1978-03-01	38.4752906929427
1978-04-01	38.6082750980269
1978-05-01	38.8768957612548
1978-06-01	39.0628406636000
1978-07-01	39.2098482174056
1978-08-01	39.4194022071468
1978-09-01	39.4379778447668
1978-10-01	39.4597986043980
1978-11-01	39.6341931891812
1978-12-01	38.1884418552106
1979-01-01	39.6714700654143
1979-02-01	38.9460939742236
1979-03-01	38.9078543663261
1979-04-01	39.1303391029670
1979-05-01	39.5161575751889
1979-06-01	39.4952444012133
1979-07-01	39.5418893825117
1979-08-01	39.9476957454208
1979-09-01	39.0891580782936
1979-10-01	39.1957203464333
1979-11-01	39.3160891998719
1979-12-01	38.1653246078202
1980-01-01	39.4722631850404
1980-02-01	38.6233879653980
1980-03-01	38.3640723237393
1980-04-01	39.0119362169285
1980-05-01	38.5786683048046
1980-06-01	38.7770294993053
1980-07-01	38.6519925902638
1980-08-01	38.9815906939836
1980-09-01	38.2497300317452
1980-10-01	38.9758976880398
1980-11-01	39.0599464107236
1980-12-01	37.7234747824130
1981-01-01	39.4141435845461
1981-02-01	38.6435634082952
1981-03-01	38.2505257774946
1981-04-01	38.6508506883527
1981-05-01	38.8700743260864
1981-06-01	39.1836430246482
1981-07-01	38.9635486590126
1981-08-01	39.3281691745489
1981-09-01	38.3359026273518
1981-10-01	39.1382840326933
1981-11-01	39.3460355557620
1981-12-01	38.2458229208110
1982-01-01	39.6471662573969
1982-02-01	38.6752633739492
1982-03-01	38.4331979027309
1982-04-01	39.3289802733871
1982-05-01	39.2243953287761
1982-06-01	39.5763733904546
1982-07-01	39.5520836658370
1982-08-01	39.9837496763053
1982-09-01	39.0974264934262
1982-10-01	39.0948011141648
1982-11-01	39.5148962377670
1982-12-01	38.4977519300702
1983-01-01	40.1804900230518
1983-02-01	38.9981328777308
1983-03-01	38.8407084586643
1983-04-01	39.6349381652732
1983-05-01	39.4747641270960
1983-06-01	39.8607905077822
1983-07-01	39.7534129566636
1983-08-01	40.3080685041537
1983-09-01	39.0956230846172
1983-10-01	39.9456550095215
1983-11-01	39.9108131406208
1983-12-01	38.7523129607145
1984-01-01	40.3758653475599
1984-02-01	39.3312027386629
1984-03-01	38.5566625681905
1984-04-01	39.0715150374492
1984-05-01	39.3982293535989
1984-06-01	39.4335090316267
1984-07-01	39.5877603898713
1984-08-01	40.1285500358681
1984-09-01	39.1119599242308
1984-10-01	39.7891345194205
1984-11-01	39.7495381975278
1984-12-01	38.8651145137254
1985-01-01	40.2554835570206
1985-02-01	39.0150215126404
1985-03-01	38.6114599028105
1985-04-01	39.7554248243127
1985-05-01	39.3177465941141
1985-06-01	39.4074059090202
1985-07-01	39.4760650142443
1985-08-01	39.7553034195755
1985-09-01	38.5593557052653
1985-10-01	39.4876994293308
1985-11-01	38.6161104833485
1985-12-01	38.0975380638380
1986-01-01	39.2299209837669
1986-02-01	38.1203030362923
1986-03-01	37.6015720970179
1986-04-01	37.6913217541019
1986-05-01	38.0678952848461
1986-06-01	38.1902511558145
1986-07-01	38.1654735202361
1986-08-01	38.8523116303013
1986-09-01	37.6783907185102
1986-10-01	38.2124276396300
1986-11-01	38.3455439672072
1986-12-01	37.2088638164180
1987-01-01	38.9326287449267
1987-02-01	37.8482560387959
1987-03-01	37.0450571026523
1987-04-01	37.7513842609052
1987-05-01	38.0403127879846
1987-06-01	38.1985044305756
1987-07-01	37.8694887964995
1987-08-01	38.6961738650987
1987-09-01	38.0792359124604
1987-10-01	38.3631481351647
1987-11-01	38.5825226411210
1987-12-01	37.0962898995695
1988-01-01	38.2864924302512
1988-02-01	37.7988685128919
1988-03-01	36.7307736399114
1988-04-01	36.9477066171132
1988-05-01	37.6805677223480
1988-06-01	37.7868614051809
1988-07-01	38.2405891026919
1988-08-01	38.4133811564121
1988-09-01	37.2186052193097
1988-10-01	37.8918656942625
1988-11-01	37.9074548056836
1988-12-01	36.5490396330300
1989-01-01	37.9656847722626
1989-02-01	36.9137043544467
1989-03-01	36.8852988165529
1989-04-01	36.8765271802673
1989-05-01	36.6229483490395
1989-06-01	37.1074783918021
1989-07-01	36.9224238551935
1989-08-01	37.3130291378049
1989-09-01	36.1965726962995
1989-10-01	36.8926444746290
1989-11-01	36.6462881268474
1989-12-01	35.7616055969759
1990-01-01	37.2152018040311
1990-02-01	36.2481265052378
1990-03-01	36.1362634825910
1990-04-01	36.2263819409631
1990-05-01	36.0368981791240
1990-06-01	36.2511011972820
1990-07-01	35.9735814541559
1990-08-01	36.7557255954700
1990-09-01	35.7912990460829
1990-10-01	36.4667767823028
1990-11-01	36.5447559292307
1990-12-01	35.4017972956322
1991-01-01	37.0607270522010
1991-02-01	36.2956090840048
1991-03-01	36.2349803440263
1991-04-01	36.0640105390620
1991-05-01	36.5657353257183
1991-06-01	37.1840296688874
1991-07-01	37.6711436846807
1991-08-01	37.4671576489519
1991-09-01	36.4244181474173
1991-10-01	37.5229257976843
1991-11-01	37.6232282764384
1991-12-01	36.2214130426015
1992-01-01	37.4201181283432
1992-02-01	36.6735657370092
1992-03-01	36.7468581433666
1992-04-01	37.1109988924951
1992-05-01	37.2009790597320
1992-06-01	37.2570446047023
1992-07-01	37.0131567048950
1992-08-01	37.6089430172798
1992-09-01	36.7820149509758
1992-10-01	37.2747060489620
1992-11-01	37.9356707861359
1992-12-01	36.6152964943150
1993-01-01	37.6405845966797
1993-02-01	37.4397106571950
1993-03-01	37.1653880413140
1993-04-01	38.1120504386061
1993-05-01	37.8407264799860
1993-06-01	37.8553375838138
1993-07-01	37.9692730484491
1993-08-01	38.2672395552663
1993-09-01	37.0486123810204
1993-10-01	37.4145351466096
1993-11-01	37.4167814993005
1993-12-01	36.4262855210918
1994-01-01	37.5956153451459
1994-02-01	36.8515562577765
1994-03-01	36.7430154587658
1994-04-01	37.2606393486712
1994-05-01	37.3164063839320
1994-06-01	37.3278535887631
1994-07-01	36.9808835895260
1994-08-01	37.8172514149464
1994-09-01	36.2634046354776
1994-10-01	37.2837358000116
1994-11-01	37.2578025345611
1994-12-01	36.1005424606841
1995-01-01	37.3394544468355
1995-02-01	36.2861392051321
1995-03-01	36.3781209392644
1995-04-01	36.5184046847203
1995-05-01	36.5628412429682
1995-06-01	36.5401477179221
1995-07-01	36.5527397241798
1995-08-01	37.0025789773572
1995-09-01	35.8561429967314
1995-10-01	36.6333052138728
1995-11-01	36.2733960689351
1995-12-01	35.5641552037936
1996-01-01	36.6836040711663
1996-02-01	36.0465400805126
1996-03-01	36.1743707282831
1996-04-01	36.5893699862094
1996-05-01	36.4816231042023
1996-06-01	36.6870738047923
1996-07-01	36.5934239904467
1996-08-01	36.8765100513496
1996-09-01	36.0503167130386
1996-10-01	36.7230257874835
1996-11-01	37.0246045671299
1996-12-01	35.8284292510448
1997-01-01	36.9560513659863
1997-02-01	36.2766100260212
1997-03-01	36.4098161252404
1997-04-01	36.7565541518893
1997-05-01	36.9643370282329
1997-06-01	37.1807686422231
1997-07-01	37.0658470161562
1997-08-01	37.9041696758081
1997-09-01	36.4130991180906
1997-10-01	37.3084023483922
1997-11-01	36.9840450353963
1997-12-01	36.2988953181160
1998-01-01	37.4611844272995
1998-02-01	36.8434634475646
1998-03-01	36.8626115412242
1998-04-01	37.0144640538814
1998-05-01	37.1259065065276
1998-06-01	36.9984090727693
1998-07-01	37.0029950198140
1998-08-01	37.6360410813872
1998-09-01	36.1769357539985
1998-10-01	37.1134032985141
1998-11-01	37.3272683662146
1998-12-01	36.4691801747342
1999-01-01	37.7489173541109
1999-02-01	37.0749602073194
1999-03-01	37.0933120994342
1999-04-01	37.2683840083737
1999-05-01	37.5200529782906
1999-06-01	37.4516632824306
1999-07-01	37.4651897682676
1999-08-01	37.9307598290009
1999-09-01	36.5037706902155
1999-10-01	37.1809837746650
1999-11-01	37.4265938225839
1999-12-01	36.1760961585501
2000-01-01	37.7643236683902
2000-02-01	36.8486615571422
2000-03-01	36.7415924806418
2000-04-01	36.7278664514933
2000-05-01	36.9330407791502
2000-06-01	36.8980668327911
2000-07-01	36.5760183354059
2000-08-01	37.1649154917323
2000-09-01	36.0979664049315
2000-10-01	37.0000016156882
2000-11-01	37.3635206529369
2000-12-01	36.2348893851044
2001-01-01	37.6064453135820
2001-02-01	36.6582280841070
2001-03-01	36.8678067016327
2001-04-01	36.3999159113095
2001-05-01	36.5851531915078
2001-06-01	36.6198007816308
2001-07-01	36.7746687906856
2001-08-01	37.1779312101288
2001-09-01	36.1579240717396
2001-10-01	36.6333568107266
2001-11-01	36.9384870370545
2001-12-01	36.0079285236576
2002-01-01	36.8061573834386
2002-02-01	36.3507719626908
2002-03-01	36.5937429203846
2002-04-01	36.8661096281343
2002-05-01	36.9207205212066
2002-06-01	36.6866780594837
2002-07-01	37.0971411652929
2002-08-01	37.1785431406519
2002-09-01	36.0263388918556
2002-10-01	36.8717214815440
2002-11-01	36.7067996882319
2002-12-01	35.5341889258414
2003-01-01	36.2884191819130
2003-02-01	35.7388992172659
2003-03-01	36.0972942328703
2003-04-01	36.3503120987572
2003-05-01	36.3348266551466
2003-06-01	36.5708616454484
2003-07-01	36.8703125241591
2003-08-01	37.2058319238094
2003-09-01	36.0624539781320
2003-10-01	36.6284908511845
2003-11-01	36.9595056102759
2003-12-01	35.8545808622346
2004-01-01	37.0128806241280
2004-02-01	36.4196180057285
2004-03-01	36.4622011221755
2004-04-01	36.5670216852834
2004-05-01	36.6336234669146
2004-06-01	36.6286095622324
2004-07-01	36.7966293952292
2004-08-01	37.3327173569987
2004-09-01	35.9730306837298
2004-10-01	36.4716315029715
2004-11-01	36.6317739486363
2004-12-01	35.5637931362761
2005-01-01	36.4053351935982
2005-02-01	35.6767878559444
2005-03-01	35.4242624166730
2005-04-01	35.4732293041010
2005-05-01	35.6234293479504
2005-06-01	35.5750904980109
2005-07-01	35.7397216470638
2005-08-01	36.0009394043039
2005-09-01	35.0004551576917
2005-10-01	35.6305930363288
2005-11-01	35.8517057431094
2005-12-01	34.8334667438134
2006-01-01	35.9634667318190
2006-02-01	35.2514379808145
2006-03-01	35.2153209362377
2006-04-01	35.3848163354199
2006-05-01	35.3382463826209
2006-06-01	35.2361256859346
2006-07-01	35.3010373239456
2006-08-01	35.6613215715806
2006-09-01	34.4245769531889
2006-10-01	35.3874410256693
2006-11-01	35.5712574316614
2006-12-01	34.2038723776752
2007-01-01	35.5469572648150
2007-02-01	34.7541828618249
2007-03-01	34.7838072684008
2007-04-01	34.9696772191000
2007-05-01	34.8796400039082
2007-06-01	34.8676566108202
2007-07-01	35.0456780048513
2007-08-01	35.3261627994629
2007-09-01	34.2323643531803
2007-10-01	34.8411584280216
2007-11-01	34.8496100977738
2007-12-01	33.8044797955991
2008-01-01	34.8571937772992
2008-02-01	34.4451653450422
2008-03-01	34.3950972748003
2008-04-01	34.3126140909558
2008-05-01	34.5527231123856
2008-06-01	34.4362170959457
2008-07-01	34.5981894762974
2008-08-01	35.0863848939058
2008-09-01	34.0513201739624
2008-10-01	34.5975911296270
2008-11-01	34.9653888227462
2008-12-01	33.9333550795853
2009-01-01	34.8873614846069
2009-02-01	33.9901921076316
2009-03-01	34.0858291870361
2009-04-01	34.4022758884020
2009-05-01	34.3568267040090
2009-06-01	34.6160642134540
2009-07-01	34.8086006072760
2009-08-01	35.3687240958274
2009-09-01	34.3426545982694
2009-10-01	34.8263061690143
2009-11-01	35.1142450683629
2009-12-01	34.0195604117677
2010-01-01	35.0689408111157
2010-02-01	34.5218489932385
2010-03-01	34.5404737550824
2010-04-01	34.6840570080490
2010-05-01	34.8733772011772
2010-06-01	34.7904097244471
2010-07-01	34.7947124563732
2010-08-01	35.2614692891080
2010-09-01	34.1138801060733
2010-10-01	34.3741952190097
2010-11-01	34.5407967670608
2010-12-01	33.7588183224103
2011-01-01	34.7622012222721
2011-02-01	34.2256307552888
2011-03-01	34.1732125425952
2011-04-01	34.5940435174509
2011-05-01	34.6101847678460
2011-06-01	34.6917251263680
2011-07-01	34.7483117344345
2011-08-01	35.1844620657998
2011-09-01	34.0936582715870
2011-10-01	34.6176821247665
2011-11-01	34.9491256418738
2011-12-01	34.2784876311948
2012-01-01	35.2453828325454
2012-02-01	34.6231367882383
2012-03-01	34.4266165030661
2012-04-01	34.8653030059366
2012-05-01	34.5026162429376
2012-06-01	34.9148399218524
2012-07-01	35.0274555056780
2012-08-01	35.6505312080527
2012-09-01	34.3144637390232
2012-10-01	34.8864587950120
2012-11-01	35.3108818388744
2012-12-01	34.3645317051919
2013-01-01	35.3159387608738
2013-02-01	34.5436118531267
2013-03-01	34.6677102110845
2013-04-01	34.7494802790296
2013-05-01	34.8100084202332
2013-06-01	34.9092228950490
2013-07-01	35.2034184828394
2013-08-01	35.7424535361361
2013-09-01	34.8150606145802
2013-10-01	35.2511444531744
2013-11-01	35.6328486747815
2013-12-01	35.0124781281245
2014-01-01	35.8451929014655
2014-02-01	34.8630726437230
2014-03-01	34.9683134871453
2014-04-01	35.2071663803039
2014-05-01	35.2600113856464
2014-06-01	35.3029736975174
2014-07-01	35.3357134526851
2014-08-01	35.2964317877815
2014-09-01	35.5138768000514
2014-10-01	35.4700571977117
2014-11-01	35.5240040911660
2014-12-01	34.8497116896267
2015-01-01	35.6960397988336
2015-02-01	34.4568722032040
2015-03-01	34.8421292737384
2015-04-01	35.0677221645251
2015-05-01	34.9483058908727
2015-06-01	35.1635085031030
2015-07-01	34.9926484591675
2015-08-01	35.4232486455521
2015-09-01	35.1822463720020
2015-10-01	34.9704649308722
2015-11-01	34.8103665425522
2015-12-01	34.3459551755621
2016-01-01	35.2411994289217
2016-02-01	34.3847668214395
2016-03-01	34.7833728278588
2016-04-01	34.9600317503560
2016-05-01	34.8964694838782
2016-06-01	35.0745344802696
2016-07-01	35.1268753741353
2016-08-01	35.6902730955901
2016-09-01	35.6488060000459
2016-10-01	35.6046171128047
2016-11-01	35.3173229763115
2016-12-01	34.7170285224543
2017-01-01	35.8954312908447
2017-02-01	34.7016941820662
2017-03-01	34.8166385498833
2017-04-01	34.9144995848227
2017-05-01	34.7879402694164
2017-06-01	34.8626304128702
2017-07-01	34.9015127563829
2017-08-01	35.0663788922417
2017-09-01	34.8286867688804
2017-10-01	34.9399333552037
2017-11-01	34.5223360970356
2017-12-01	33.7303742908825
2018-01-01	34.8399301052048
2018-02-01	33.7245377861432
2018-03-01	34.1470190062093
2018-04-01	34.2611769898186
2018-05-01	34.2992671265013
2018-06-01	34.2694185266796
2018-07-01	34.5268600324792
2018-08-01	34.6914023315461
2018-09-01	34.7231882694674