Quarter	Percent
2003-04-01	61.3124190253303
2004-04-01	62.2635994072140
2005-01-01	63.0874072536883
2005-04-01	63.7950391959532
2005-07-01	64.0781250387558
2005-10-01	63.9229532667356
2006-01-01	63.7620962648771
2006-04-01	64.6924988112799
2006-07-01	64.7352556050983
2006-10-01	64.5928724099627
2007-01-01	64.5449466009783
2007-04-01	65.2915315109339
2007-07-01	65.6147765850296
2007-10-01	65.6424092042662
2008-01-01	65.4325717388188
2008-04-01	65.8690474238780
2008-07-01	65.6470900815024
2008-10-01	65.6920545452717
2009-01-01	64.8784970216873
2009-04-01	64.8753118164025
2009-07-01	64.2990223001727
2009-10-01	64.2100512546214
2010-01-01	64.1047299218491
2010-04-01	64.5365410235960
2010-07-01	64.2938361450437
2010-10-01	64.2009456317508
2011-01-01	64.0037102784782
2011-04-01	64.6502398492061
2011-07-01	64.6206070111595
2011-10-01	65.2246106074436
2012-01-01	64.7803213836336
2012-04-01	65.4650621643884
2012-07-01	66.0583410359610
2012-10-01	66.5346157259431
2013-01-01	66.0027802442539
2013-04-01	66.4253501585912
2013-07-01	66.7529644784577
2013-10-01	66.9773991869065
2014-01-01	66.8938876379178
2014-04-01	67.5233791569862
2014-07-01	67.9865105216637
2014-10-01	68.0157571737800
2015-01-01	67.6233898842647
2015-04-01	68.4111713385694
2015-07-01	68.5473977821329
2015-10-01	68.6196542181393
2016-01-01	68.5263533942189
2016-04-01	69.2467000616414
2016-07-01	69.5239496413513
2016-10-01	69.5360432700192
2017-01-01	69.1684543796560
2017-04-01	70.2168265991964
2017-07-01	70.3991975000333
2017-10-01	70.5506336604404
2018-01-01	70.1187948270031