Quarter	Percent, Seasonally Adjusted
1998-04-01	4.13777424121860
1999-04-01	3.56940830410680
2000-04-01	3.13333711755690
2001-04-01	3.45646292308542
2002-04-01	3.09657860545691
2003-04-01	4.48759092854086
2004-04-01	4.76190476190476
2005-04-01	5.09188563003528
2006-04-01	4.70881086967795
2007-04-01	4.51586447280742
2008-04-01	3.96593553498044
2009-04-01	4.52202664592045
2010-01-01	5.35421271219147
2010-04-01	5.31573490042961
2010-07-01	5.30178598877445
2010-10-01	4.78508899108379
2011-01-01	4.93375702335645
2011-04-01	4.16907993643678
2011-07-01	5.09894324576082
2011-10-01	4.99719296061088
2012-01-01	4.59321535278127
2012-04-01	4.70420394611260
2012-07-01	4.56460495584796
2012-10-01	5.05700443685661
2013-01-01	5.12634508941032
2013-04-01	5.03167318343414
2013-07-01	4.75183462785600
2013-10-01	4.76423243195446
2014-01-01	5.18087493004145
2014-04-01	4.96603810681851
2014-07-01	5.02665265369443
2014-10-01	4.77741462752087
2015-01-01	4.39776655899744
2015-04-01	4.75279748409603
2015-07-01	5.17233078245572
2015-10-01	5.32217200150397
2016-01-01	5.08717250376582
2016-04-01	4.95248771022115
2016-07-01	5.00308285415262
2016-10-01	4.98217699769700
2017-01-01	5.08970438489731
2017-04-01	5.01090667546156
2017-07-01	5.10776332451607
2017-10-01	5.02591691118461
2018-01-01	5.33695505547467
2018-04-01	5.45021447782482