Quarter	Percent
2005-01-01	27.4411460053683
2005-04-01	27.3762344491471
2005-07-01	27.7238161825056
2005-10-01	27.4729192814716
2006-01-01	26.7017816629912
2006-04-01	26.6761755646102
2006-07-01	27.0648532322293
2006-10-01	26.4616961847873
2007-01-01	26.0236488763414
2007-04-01	26.4375001865043
2007-07-01	26.3922915309131
2007-10-01	25.4024299115503
2008-01-01	24.8800878306021
2008-04-01	24.7660864332360
2008-07-01	25.0932460353664
2008-10-01	24.1510838913029
2009-01-01	24.3910040845787
2009-04-01	24.4778566145573
2009-07-01	24.6115129332755
2009-10-01	24.0361151057805
2010-01-01	23.4478550433456
2010-04-01	22.6901673584700
2010-07-01	22.0018105708580
2010-10-01	21.5694602362803
2011-01-01	21.5078161791735
2011-04-01	20.8220703161999
2011-07-01	21.0027255378989
2011-10-01	20.7627650415165
2012-01-01	21.1317943811937
2012-04-01	21.3334303188425
2012-07-01	21.0445919700664
2012-10-01	21.0019759345791
2013-01-01	20.8545016504527
2013-04-01	20.7530420393422
2013-07-01	21.0315527145569
2013-10-01	20.6631462692952
2014-01-01	20.8822838529282
2014-04-01	20.6750382099641
2014-07-01	20.9335438432441
2014-10-01	20.4691914332670
2015-01-01	21.1144651865041
2015-04-01	20.6869410288332
2015-07-01	20.3717107621989
2015-10-01	20.1721630888728
2016-01-01	20.8489717634773
2016-04-01	20.2957994619259
2016-07-01	20.1497881576520
2016-10-01	20.1729967280399
2017-01-01	20.7860839133366
2017-04-01	19.9861387431603
2017-07-01	20.0960762557371
2017-10-01	19.5649917826110
2018-01-01	19.8060982781503
2018-04-01	19.3890258850392
2018-07-01	20.1138916633159