Quarter	Percent
2005-01-01	19.8089357579958
2005-04-01	18.5652690120602
2005-07-01	17.0591735433663
2005-10-01	19.0054976874807
2006-01-01	19.4215258393350
2006-04-01	19.2750198230694
2006-07-01	18.0228857341643
2006-10-01	19.1083508927581
2007-01-01	20.6460139488447
2007-04-01	18.6235614999781
2007-07-01	19.1211245401997
2007-10-01	20.1666055731649
2008-01-01	21.1937278705109
2008-04-01	19.9884476962040
2008-07-01	19.5305580159433
2008-10-01	20.2422384166588
2009-01-01	20.2660229999052
2009-04-01	19.2208954348081
2009-07-01	19.2633794787083
2009-10-01	20.6049602382076
2010-01-01	24.3940762017163
2010-04-01	23.7425482322701
2010-07-01	23.3994681939047
2010-10-01	23.7309163090755
2011-01-01	25.4603533852357
2011-04-01	24.6008107283479
2011-07-01	25.2079945750056
2011-10-01	25.8010969976905
2012-01-01	25.8436695023486
2012-04-01	25.0975121466999
2012-07-01	25.7765995041811
2012-10-01	25.5143473017405
2013-01-01	26.3398726856826
2013-04-01	24.4125920043657
2013-07-01	24.7138611218064
2013-10-01	25.0180069486650
2014-01-01	25.4683851978022
2014-04-01	23.8325459837525
2014-07-01	24.4566177231790
2014-10-01	24.3711001866919
2015-01-01	25.4745115615524
2015-04-01	24.2194679592143
2015-07-01	23.9844497126224
2015-10-01	24.0322677209559
2016-01-01	24.3715304231206
2016-04-01	23.0222795420631
2016-07-01	23.5122224499235
2016-10-01	25.4475448942167
2017-01-01	24.4895959501658
2017-04-01	24.1806348193659
2017-07-01	23.6944452146777
2017-10-01	24.7741005739071
2018-01-01	25.6786801983737
2018-04-01	23.2309676513961
2018-07-01	23.5986516941931