Quarter	Percent
2005-01-01	30.8160765323524
2005-04-01	30.9495787758422
2005-07-01	31.8398744464737
2005-10-01	32.4102322590526
2006-01-01	31.1736278872571
2006-04-01	31.8460222819860
2006-07-01	32.7503527333405
2006-10-01	32.8303878570317
2007-01-01	31.5788675300946
2007-04-01	31.5438771910874
2007-07-01	31.8355237273773
2007-10-01	33.8768306255600
2008-01-01	31.3874061078039
2008-04-01	31.5018093207490
2008-07-01	31.1389322687358
2008-10-01	30.5983333735318
2009-01-01	28.7076829814419
2009-04-01	28.7656913399898
2009-07-01	29.9674486383969
2009-10-01	31.0698662948787
2010-01-01	29.4036351600682
2010-04-01	29.8365935444463
2010-07-01	30.4417902144014
2010-10-01	29.4671362450127
2011-01-01	28.0930522822239
2011-04-01	29.4370911371324
2011-07-01	29.4789921377176
2011-10-01	31.7010374213995
2012-01-01	28.6668396556763
2012-04-01	30.7191025655502
2012-07-01	31.1265294814600
2012-10-01	30.6576097012023
2013-01-01	28.2606194820176
2013-04-01	30.0882844102372
2013-07-01	29.2114116920087
2013-10-01	30.4247562880246
2014-01-01	28.3790734002690
2014-04-01	28.8365567524871
2014-07-01	28.8474318438855
2014-10-01	28.1470626651944
2015-01-01	27.3537216383422
2015-04-01	27.8279880039275
2015-07-01	28.5897327412806
2015-10-01	29.8150889108166
2016-01-01	27.2741352443455
2016-04-01	28.1875967230028
2016-07-01	29.4673557255576
2016-10-01	28.8563643133332
2017-01-01	27.7246156414497
2017-04-01	27.9762990310896
2017-07-01	28.5281170002276
2017-10-01	28.9315127750981
2018-01-01	27.4296814964723
2018-04-01	29.2393217477861