Quarter	Percent, Seasonally Adjusted
1998-04-01	7.63594292325492
1999-04-01	5.77334283677833
2000-04-01	4.10294666169340
2001-04-01	5.47845142439737
2002-04-01	3.92087601554221
2003-04-01	8.71687587168759
2004-04-01	7.36654804270463
2005-04-01	9.07786149982060
2006-04-01	7.45192307692308
2007-04-01	7.39299610894942
2008-04-01	7.37844270656239
2009-04-01	8.99935022742040
2010-01-01	9.66751086895964
2010-04-01	9.29714822403317
2010-07-01	8.20418924584618
2010-10-01	7.56129068228240
2011-01-01	7.63709008748032
2011-04-01	7.37902395394800
2011-07-01	8.05770916936203
2011-10-01	8.49595654200945
2012-01-01	7.98589442938173
2012-04-01	7.95280719925938
2012-07-01	7.73217750551962
2012-10-01	8.34947936265169
2013-01-01	8.39328220155172
2013-04-01	9.14057986795678
2013-07-01	8.92672354885638
2013-10-01	8.63656315165440
2014-01-01	9.07103956355304
2014-04-01	8.96102552978839
2014-07-01	9.00052018144171
2014-10-01	7.29784677206351
2015-01-01	7.73291667192664
2015-04-01	7.99110231347765
2015-07-01	8.67808357002854
2015-10-01	9.18635473781131
2016-01-01	8.38229926575269
2016-04-01	8.60766448918164
2016-07-01	8.61799871667240
2016-10-01	8.02679149099295
2017-01-01	7.81782773979550
2017-04-01	8.33380054617413
2017-07-01	8.09503576185730
2017-10-01	7.70286544981890
2018-01-01	8.05937531209661
2018-04-01	7.60256297937599