Quarter	Percent
2005-01-01	58.9803078695419
2005-04-01	58.8844355992309
2005-07-01	59.7422148956882
2005-10-01	59.7013888812990
2006-01-01	59.6391738082738
2006-04-01	59.8296176433920
2006-07-01	60.5442003898058
2006-10-01	60.5073709857792
2007-01-01	59.7505662505869
2007-04-01	59.9280551319125
2007-07-01	59.8940860863992
2007-10-01	60.8738442867574
2008-01-01	59.9602232272014
2008-04-01	60.3589175355098
2008-07-01	60.0592601398548
2008-10-01	59.4436023255112
2009-01-01	59.1398303202818
2009-04-01	59.3489072161885
2009-07-01	60.5858947453814
2009-10-01	60.5318000690900
2010-01-01	59.3253613505317
2010-04-01	60.2927074047671
2010-07-01	60.1344818363971
2010-10-01	58.9577449564499
2011-01-01	58.7036966438739
2011-04-01	59.6216414043396
2011-07-01	60.1139709890523
2011-10-01	60.6302943067382
2012-01-01	59.6272227776542
2012-04-01	60.8697621228753
2012-07-01	61.0939109111700
2012-10-01	60.1288755461841
2013-01-01	59.3481589301747
2013-04-01	60.5098048269218
2013-07-01	60.5128853810762
2013-10-01	60.8051847263815
2014-01-01	59.7575300152283
2014-04-01	59.8659643647231
2014-07-01	59.9355053061229
2014-10-01	59.5386537013830
2015-01-01	59.1781312791544
2015-04-01	59.6693237896984
2015-07-01	59.9587341670451
2015-10-01	60.4227850860502
2016-01-01	59.2113699026585
2016-04-01	59.6374654245532
2016-07-01	60.1942108714756
2016-10-01	59.7220601186245
2017-01-01	59.2222283291043
2017-04-01	59.3385933210182
2017-07-01	59.4125154096330
2017-10-01	59.4244973611620
2018-01-01	58.9502596544531
2018-04-01	59.7880823150965