Quarter	Percent, Seasonally Adjusted
1999-04-01	2.64327485380117
2000-04-01	2.27811083491739
2001-04-01	1.98048303059961
2002-04-01	2.48014172238414
2003-04-01	3.38274742340816
2004-04-01	3.76345597121898
2005-04-01	3.74379289181499
2006-04-01	3.37871492611655
2007-04-01	3.08181917092808
2008-04-01	2.75823621545568
2009-04-01	3.41158059467919
2010-01-01	4.45379726154424
2010-04-01	4.26627755251490
2010-07-01	4.24349657210526
2010-10-01	3.99913782954020
2011-01-01	3.92617863464309
2011-04-01	3.57175584997198
2011-07-01	3.90551854023885
2011-10-01	4.05829076853061
2012-01-01	3.69683111641559
2012-04-01	3.78652116411705
2012-07-01	3.84378049063050
2012-10-01	4.14658209702755
2013-01-01	4.18900099358082
2013-04-01	4.22238483274223
2013-07-01	4.12032061575561
2013-10-01	3.91595950093283
2014-01-01	4.27431319791402
2014-04-01	4.28604264866159
2014-07-01	4.30516098162078
2014-10-01	4.10021824275778
2015-01-01	3.92387889497092
2015-04-01	4.11978514015426
2015-07-01	4.37812268478565
2015-10-01	4.35390919951822
2016-01-01	4.37644423502633
2016-04-01	4.41920548905248
2016-07-01	4.35907640836678
2016-10-01	4.33354950633937
2017-01-01	4.47164509745906
2017-04-01	4.17492604221871
2017-07-01	4.26868321411475
2017-10-01	4.35700279713654
2018-01-01	4.45477249751128
2018-04-01	4.50234771681584