Quarter	Percent
1999-01-01	32.4139908256881
1999-04-01	32.6096529014225
1999-07-01	32.8969813128893
1999-10-01	32.9567469070682
2000-01-01	32.8798447378029
2000-04-01	32.9820377706835
2000-07-01	33.3192267000096
2000-10-01	33.6767707892000
2001-01-01	33.2261359766940
2001-04-01	33.0834894857381
2001-07-01	33.3806764382835
2001-10-01	33.1861760582061
2002-01-01	33.1450022751403
2002-04-01	33.3251128732405
2002-07-01	33.3921691434645
2002-10-01	33.5719711355868
2003-01-01	33.6570440335240
2003-04-01	34.1008917875682
2003-07-01	34.3537156120391
2003-10-01	34.4811177097609
2004-01-01	34.0792558565084
2004-04-01	33.8987254827139
2004-07-01	33.9784699954191
2004-10-01	34.1315307057745
2005-01-01	33.9228418640183
2005-04-01	34.0618611848767
2005-07-01	34.2633288744506
2005-10-01	34.2043890503135
2006-01-01	34.1302602912510
2006-04-01	34.2410219145600
2006-07-01	34.3626907338713
2006-10-01	34.4159947909685
2007-01-01	34.1068041158098
2007-04-01	34.2584960993656
2007-07-01	34.2384842557435
2007-10-01	34.1382484943803
2008-01-01	33.5928511160543
2008-04-01	33.6499165371554
2008-07-01	34.2416856972884
2008-10-01	34.2428428889401
2009-01-01	33.2724511179897
2009-04-01	33.4513274336283
2009-07-01	33.4078040137129
2009-10-01	33.5940359461386
2010-01-01	33.5337882117112
2010-04-01	33.9280897144399
2010-07-01	34.1627476678745
2010-10-01	33.9796272716750
2011-01-01	33.3552047551044
2011-04-01	33.8584046850538
2011-07-01	34.1795893112649
2011-10-01	34.2542077771329
2012-01-01	34.0221959675389
2012-04-01	34.8843072984348
2012-07-01	35.3516155308173
2012-10-01	35.0114505298296
2013-01-01	34.5455251860054
2013-04-01	34.9809442327137
2013-07-01	35.4059259547480
2013-10-01	35.8581632057295
2014-01-01	36.4783794312427
2014-04-01	36.8706368706369
2014-07-01	37.3228991842629