Quarter	Percent
1995-01-01	19.8417506469261
1995-04-01	18.0120743114306
1995-07-01	16.6114948110226
1995-10-01	19.5064756024330
1996-01-01	20.1795079062598
1996-04-01	18.3968712024081
1996-07-01	16.8683000943874
1996-10-01	19.4061996862364
1997-01-01	20.2886112430844
1997-04-01	18.2962480897015
1997-07-01	16.5611091909604
1997-10-01	18.9706459397277
1998-01-01	20.2768327314393
1998-04-01	18.2942798226782
1998-07-01	16.6997631336178
1998-10-01	19.1728221861702
1999-01-01	19.9342597430285
1999-04-01	17.6472878362414
1999-07-01	16.4092621129994
1999-10-01	18.6323256576693
2000-01-01	19.6679724933693
2000-04-01	17.7159032786199
2000-07-01	16.4240922627983
2000-10-01	18.5461962014437
2001-01-01	19.3888022253424
2001-04-01	17.5575364440842
2001-07-01	16.6641968500799
2001-10-01	18.7956165792101
2002-01-01	18.9876652361719
2002-04-01	17.0206489234615
2002-07-01	15.5547348165675
2002-10-01	17.7525662113821
2003-01-01	18.3887167015138
2003-04-01	16.4860946622531
2003-07-01	15.3027798487544
2003-10-01	17.6415605863888
2004-01-01	18.5868928528143
2004-04-01	16.6951715572502
2004-07-01	15.6905480164474
2004-10-01	17.6578038730318
2005-01-01	18.8127547111617
2005-04-01	17.1208078151469
2005-07-01	15.9360420841937
2005-10-01	18.2892641628807
2006-01-01	19.4245335480370
2006-04-01	17.6334853070973
2006-07-01	16.1823511280090
2006-10-01	18.4792517271421
2007-01-01	19.1770346881013
2007-04-01	17.2430563548696
2007-07-01	16.2179764777174
2007-10-01	17.9226630166804
2008-01-01	18.6952738333136
2008-04-01	16.8828899229436
2008-07-01	16.0729759279059
2008-10-01	17.9555546401258
2009-01-01	19.2305641836276
2009-04-01	17.6079046868793
2009-07-01	17.2151324920033
2009-10-01	19.2048752937992
2010-01-01	20.1967707294831
2010-04-01	17.9605827686833
2010-07-01	17.0762902122297
2010-10-01	19.3360916426615
2011-01-01	19.9494261412841
2011-04-01	17.9537006286962
2011-07-01	17.1022017755746
2011-10-01	19.3874840523422
2012-01-01	20.3259495821451
2012-04-01	18.0530230629540
2012-07-01	17.3163810473849
2012-10-01	19.1730620909497
2013-01-01	20.0796610448381
2013-04-01	17.9675209166780
2013-07-01	17.2020765159700
2013-10-01	19.1633092964332
2014-01-01	20.0064228825845
2014-04-01	18.3745290131036
2014-07-01	17.2759165521250
2014-10-01	19.1645998108655
2015-01-01	19.8437909828412
2015-04-01	17.6863084257679
2015-07-01	16.6419118073058
2015-10-01	18.7291126221270
2016-01-01	19.3999564340092
2016-04-01	17.8515375182349
2016-07-01	17.0724002688699
2016-10-01	18.5269438613241
2017-01-01	19.0995426810663
2017-04-01	17.5694038485716
2017-07-01	17.0027985612420
2017-10-01	18.7306354232430
2018-01-01	19.5383203735231
2018-04-01	17.8193039897586
2018-07-01	17.0735364771558