Quarter	Percent, Seasonally Adjusted
1998-04-01	32.5728155339806
1999-04-01	31.0235837588135
2000-04-01	31.5789473684210
2001-04-01	32.2336852207294
2002-04-01	30.7382391278588
2003-04-01	30.6483761285028
2004-04-01	32.9440333024977
2005-04-01	34.3428571428571
2006-04-01	31.3794274074912
2007-04-01	32.5904356590884
2008-04-01	32.8662842012357
2009-04-01	32.7044711014177
2010-01-01	31.9813421124633
2010-04-01	31.6878721352527
2010-07-01	31.4240516523249
2010-10-01	32.4345199085186
2011-01-01	31.6785403286032
2011-04-01	31.3597968918783
2011-07-01	31.4787353433823
2011-10-01	31.3422765659617
2012-01-01	32.4569791579834
2012-04-01	33.0229471225064
2012-07-01	31.8456920849877
2012-10-01	32.3464924612438
2013-01-01	31.3356061712082
2013-04-01	32.1921027031614
2013-07-01	32.8357243765367
2013-10-01	31.6014776328354
2014-01-01	32.0985095122714
2014-04-01	31.9014721748704
2014-07-01	32.6027140385760
2014-10-01	31.7817703254606
2015-01-01	32.8894314783568
2015-04-01	32.5126596776832
2015-07-01	32.7741347385901
2015-10-01	31.7465326240268
2016-01-01	31.0718317923728
2016-04-01	32.3121313623918
2016-07-01	32.2954646479539
2016-10-01	30.9004001847909
2017-01-01	30.9750036161895
2017-04-01	31.5659924833363
2017-07-01	30.7895716102601
2017-10-01	31.9934795738199
2018-01-01	32.6424913470651
2018-04-01	32.5144839184127