Month	Ratio
2008-01-01	21.2318270059392
2008-02-01	21.1503483564298
2008-03-01	20.8813282069363
2008-04-01	21.1261552964025
2008-05-01	21.9387512624776
2008-06-01	21.3004292002886
2008-07-01	20.4300237701347
2008-08-01	20.0124948259345
2008-09-01	19.9348808832161
2008-10-01	17.1202310251814
2008-11-01	16.5842918820290
2008-12-01	16.7713869408660
2009-01-01	16.8893879498157
2009-02-01	17.4125422594305
2009-03-01	17.4802124595221
2009-04-01	16.4841976567049
2009-05-01	16.7190678754139
2009-06-01	16.4461828555657
2009-07-01	16.6454497500873
2009-08-01	16.2714179215834
2009-09-01	15.6337083125827
2009-10-01	16.0588548963491
2009-11-01	16.2936488493452
2009-12-01	15.8036557419591
2010-01-01	15.7401816760061
2010-02-01	16.0112727209443
2010-03-01	15.9058139526544
2010-04-01	15.4123203422987
2010-05-01	15.8595913974360
2010-06-01	15.8197110913090
2010-07-01	14.6833381321308
2010-08-01	15.3880442437729
2010-09-01	15.0404376036112
2010-10-01	16.1163510148185
2010-11-01	17.1055531829910
2010-12-01	16.0719204286382
2011-01-01	16.3343607185577
2011-02-01	16.0061993472565
2011-03-01	15.6282691671555
2011-04-01	14.8898995542579
2011-05-01	15.2209343795351
2011-06-01	15.2590332717021
2011-07-01	14.8245381280150
2011-08-01	15.0511724182846
2011-09-01	14.4724737581598
2011-10-01	15.0128430465445
2011-11-01	15.7376650080004
2011-12-01	16.7215231394087
2012-01-01	15.6106261532535
2012-02-01	16.3675443253609
2012-03-01	16.9760161542432
2012-04-01	16.0586075136774
2012-05-01	15.4913496835453
2012-06-01	15.7258265180076
2012-07-01	15.4799715728885
2012-08-01	15.7764517747216
2012-09-01	16.0965487388708
2012-10-01	15.7629478429840
2012-11-01	16.4785525790376
2012-12-01	16.2258381921737
2013-01-01	16.3756928127400
2013-02-01	15.5598351391775
2013-03-01	16.7734214026514
2013-04-01	16.5489847593454
2013-05-01	16.5678447121043
2013-06-01	18.1000070675073
2013-07-01	17.2374136443118
2013-08-01	18.0873918963716
2013-09-01	17.2898600524061
2013-10-01	16.9326657538113
2013-11-01	17.5567998518667
2013-12-01	16.6350369424957
2014-01-01	16.5824321658373
2014-02-01	17.0799327734162
2014-03-01	17.6845071242691
2014-04-01	17.4133962896571
2014-05-01	17.3226465182253
2014-06-01	17.9778086813901
2014-07-01	16.7209741455639
2014-08-01	17.0272950631972
2014-09-01	18.2235201526975
2014-10-01	16.9209977499490
2014-11-01	18.1314515140661
2014-12-01	17.5576200286363
2015-01-01	17.2729151299938
2015-02-01	17.5355013969501
2015-03-01	17.8042740900420
2015-04-01	17.4016848984771
2015-05-01	17.7607508864799
2015-06-01	17.9738019217300
2015-07-01	17.6325753533261
2015-08-01	18.0059663574443
2015-09-01	17.7305060873706
2015-10-01	17.2079702906768
2015-11-01	18.3145002998925
2015-12-01	17.7502531582122
2016-01-01	17.4707520931078
2016-02-01	18.3552681368336
2016-03-01	18.0110930523561
2016-04-01	16.5515291171971
2016-05-01	17.3392213531058
2016-06-01	16.5322748513230
2016-07-01	16.1358310573414
2016-08-01	16.7496810504277
2016-09-01	16.7718086105437
2016-10-01	16.9805644343921
2016-11-01	16.4470152889960
2016-12-01	16.0156204532348
2017-01-01	16.5885530454883
2017-02-01	16.4774274893267
2017-03-01	16.7853127547777
2017-04-01	16.5020997293119
2017-05-01	16.6987951320833
2017-06-01	16.6659286781015
2017-07-01	16.0757815167420
2017-08-01	15.4655087134523
2017-09-01	16.1460602477127
2017-10-01	15.8611939080455
2017-11-01	15.7386405405393
2017-12-01	15.1084132494208
2018-01-01	15.7218222613430
2018-02-01	16.1691014221281
2018-03-01	16.4608673246027
2018-04-01	15.9601051952289
2018-05-01	15.5788728098292
2018-06-01	14.4793227331903