Quarter	Percent
2008-01-01	11.5011704681129
2008-04-01	12.0292524839638
2008-07-01	12.8260411509618
2008-10-01	12.2518210769887
2009-01-01	14.1032725584136
2009-04-01	15.1463372780552
2009-07-01	16.2550426603659
2009-10-01	14.8791595187900
2010-01-01	15.4499760877260
2010-04-01	15.7617068119655
2010-07-01	16.2583939111910
2010-10-01	15.3098808757034
2011-01-01	15.8391374859128
2011-04-01	15.6180852776075
2011-07-01	16.3780274734669
2011-10-01	14.9676323504334
2012-01-01	15.7452066312436
2012-04-01	15.5654306768050
2012-07-01	16.0392851941710
2012-10-01	15.5795789309770
2013-01-01	16.1918046498285
2013-04-01	15.7230655066595
2013-07-01	15.7817608774431
2013-10-01	14.8584981474827
2014-01-01	15.2698846367957
2014-04-01	14.2672330043018
2014-07-01	14.9015349496211
2014-10-01	14.0540977181283
2015-01-01	13.9790724107723
2015-04-01	13.5802583277053
2015-07-01	13.7420370769844
2015-10-01	12.3801218164852
2016-01-01	12.6767172076327
2016-04-01	12.7033371239253
2016-07-01	12.8525867220549
2016-10-01	11.7139916925875
2017-01-01	11.8305562746133
2017-04-01	11.6217112994834
2017-07-01	11.7624527866698
2017-10-01	10.8633014314646
2018-01-01	10.8889104705982
2018-04-01	10.4440852155789