Quarter	Percent, Seasonally Adjusted
1998-01-01	47.9898372458061
1998-04-01	47.3685604654925
1998-07-01	47.8911409879372
1998-10-01	47.7161137624282
1999-01-01	47.3107160473943
1999-04-01	46.9408051315461
1999-07-01	46.4035909791774
1999-10-01	46.0886493166828
2000-01-01	45.5701311197246
2000-04-01	44.9206076582158
2000-07-01	43.8693983262661
2000-10-01	43.2349135707781
2001-01-01	43.0472864705833
2001-04-01	41.9480183141798
2001-07-01	40.9712409040608
2001-10-01	40.0685886859315
2002-01-01	39.1018588020509
2002-04-01	39.2029036751369
2002-07-01	38.6754775156710
2002-10-01	37.9873835691500
2003-01-01	37.6128071774718
2003-04-01	36.7687124854765
2003-07-01	36.5259631315397
2003-10-01	36.2408377469904
2004-01-01	35.6679647095294
2004-04-01	35.5434367814640
2004-07-01	34.8175320571711
2004-10-01	34.6240170635117
2005-01-01	34.5302873592915
2005-04-01	33.7173995120258
2005-07-01	33.5406924258211
2005-10-01	34.1724108774156
2006-01-01	33.8231835996195
2006-04-01	33.6946690765929
2006-07-01	33.5228510135876
2006-10-01	33.1137987411659
2007-01-01	32.8123653032003
2007-04-01	32.2367053087714
2007-07-01	31.5164061178916
2007-10-01	31.1244510147955
2008-01-01	30.9579301460664
2008-04-01	31.2358261880987
2008-07-01	31.1024447177809
2008-10-01	31.2746789514204
2009-01-01	31.6261205183273
2009-04-01	31.8814957715180
2009-07-01	32.0204703025726
2009-10-01	31.8416987083176
2010-01-01	30.9514787719173
2010-04-01	30.6976440252343
2010-07-01	31.2462910400794
2010-10-01	30.6178142046931
2011-01-01	29.9908555675290
2011-04-01	30.2529414246483
2011-07-01	30.2460070882970
2011-10-01	29.2295336563533
2012-01-01	31.1653770481077
2012-04-01	31.4719912027202
2012-07-01	31.1454914842714
2012-10-01	31.4166284636865
2013-01-01	31.5811152369119
2013-04-01	31.4646898259524
2013-07-01	31.5855850759099
2013-10-01	31.5552895496603
2014-01-01	31.5448543954332
2014-04-01	32.0627521498837
2014-07-01	32.3391715121934
2014-10-01	32.8606849770636
2015-01-01	33.1151461044554
2015-04-01	32.6431053008394
2015-07-01	32.0788670811791
2015-10-01	32.0801630349556
2016-01-01	31.7454919164315
2016-04-01	32.0042589676307
2016-07-01	32.1257169301410
2016-10-01	32.0435069345266
2017-01-01	32.3547267956147
2017-04-01	31.7719185847500
2017-07-01	31.7409918383119
2017-10-01	30.7237110441301
2018-01-01	30.4192349335938
2018-04-01	30.3093025486762