Quarter	Percent, Seasonally Adjusted
1998-04-01	3.19443813332122
1999-04-01	2.76794627461657
2000-04-01	2.31169418683556
2001-04-01	1.71021163304905
2002-04-01	2.79500314550193
2003-04-01	3.83913062842382
2004-04-01	3.96620720320142
2005-04-01	3.90187538885432
2006-04-01	3.42285413375461
2007-04-01	2.94816928197813
2008-04-01	2.83603126468201
2009-04-01	3.79698931965352
2010-01-01	4.85471627574437
2010-04-01	4.65368036926856
2010-07-01	4.32898894863116
2010-10-01	4.21286342213878
2011-01-01	4.01436187279106
2011-04-01	4.18907630957554
2011-07-01	3.90493379052506
2011-10-01	4.29247471870258
2012-01-01	3.99042123343541
2012-04-01	3.99755512684321
2012-07-01	4.44396499762015
2012-10-01	4.77432493767398
2013-01-01	4.58103889585800
2013-04-01	4.64670895966695
2013-07-01	4.71239190987361
2013-10-01	4.58632158103106
2014-01-01	4.86183312393078
2014-04-01	4.99520488880920
2014-07-01	4.76255050509907
2014-10-01	4.27238462460748
2015-01-01	4.47812977792083
2015-04-01	4.71914373991485
2015-07-01	4.81801456642903
2015-10-01	4.94774087225319
2016-01-01	4.96991367998831
2016-04-01	4.93647358089153
2016-07-01	4.90763169904620
2016-10-01	4.71667423570263
2017-01-01	4.84187150660039
2017-04-01	4.42971907730397
2017-07-01	4.59372575894363
2017-10-01	4.56659588938084
2018-01-01	4.56870547940814
2018-04-01	4.48643104518881