Quarter	Percent
2005-01-01	9.98963462036797
2005-04-01	9.09090909090909
2005-07-01	8.13771517996870
2005-10-01	6.91274292422068
2006-01-01	5.78954405669207
2006-04-01	5.72297118688871
2006-07-01	5.73467230443975
2006-10-01	5.19935344827586
2007-01-01	5.38482095136291
2007-04-01	4.11249668347042
2007-07-01	3.97832408141686
2007-10-01	3.82565924306599
2008-01-01	5.38409245411285
2008-04-01	3.92935377875137
2008-07-01	5.74456948442816
2008-10-01	7.37405377186113
2009-01-01	9.46729957805907
2009-04-01	10.67759136428660
2009-07-01	10.28254418784670
2009-10-01	11.63938685372820
2010-01-01	13.28135324435050
2010-04-01	14.28571428571430
2010-07-01	15.17880113197840
2010-10-01	15.28989225243720
2011-01-01	13.83605679078490
2011-04-01	12.54160564505390
2011-07-01	12.96518607442980
2011-10-01	12.29308005427410
2012-01-01	12.50000000000000
2012-04-01	11.11111111111110
2012-07-01	10.64057893326190
2012-10-01	12.04344874405970
2013-01-01	11.40637775960750
2013-04-01	10.05700325732900
2013-07-01	10.02321452956440
2013-10-01	10.43347463421300
2014-01-01	10.86369770580300
2014-04-01	9.27528393726338
2014-07-01	7.82386210611366
2014-10-01	8.92324382967182
2015-01-01	8.87316276537834
2015-04-01	8.00107758620690
2015-07-01	7.58064516129032
2015-10-01	8.21015855952701
2016-01-01	7.04487947795978
2016-04-01	6.60088011734898
2016-07-01	6.51125401929260
2016-10-01	6.45291118862356
2017-01-01	6.05691056910569
2017-04-01	5.42030934767989
2017-07-01	5.53359683794466
2017-10-01	5.70139458572600
2018-01-01	5.69463548830812
2018-04-01	5.29719317556412