Quarter	Percent, Seasonally Adjusted
1999-01-01	32.7611105245268
1999-04-01	32.4249392933776
1999-07-01	32.8545588592217
1999-10-01	32.7936766924706
2000-01-01	33.1643462284206
2000-04-01	32.6169188458408
2000-07-01	31.9395922444988
2000-10-01	32.3785035046493
2001-01-01	32.0222776790620
2001-04-01	32.5323603639663
2001-07-01	31.3817381456695
2001-10-01	31.6407877733108
2002-01-01	30.9009548169779
2002-04-01	31.5846015997806
2002-07-01	33.0464141470868
2002-10-01	33.2318603399871
2003-01-01	32.7951830611221
2003-04-01	33.1375363035450
2003-07-01	33.6649149865380
2003-10-01	31.8984692046651
2004-01-01	30.9346636237816
2004-04-01	30.1062248270899
2004-07-01	29.4857634030851
2004-10-01	30.3250476423219
2005-01-01	29.5525297766703
2005-04-01	29.8969471389321
2005-07-01	29.3451758163771
2005-10-01	28.5425015610272
2006-01-01	28.6433583185058
2006-04-01	28.6037982294892
2006-07-01	29.3689894998654
2006-10-01	29.8010384644974
2007-01-01	29.4174546612502
2007-04-01	28.3497767894890
2007-07-01	28.3081178420322
2007-10-01	28.7167766230166
2008-01-01	28.7184771875475
2008-04-01	28.7466370769771
2008-07-01	27.5089207886171
2008-10-01	27.9150649551231
2009-01-01	28.9700217319172
2009-04-01	28.2907962800883
2009-07-01	27.6518163853454
2009-10-01	27.7051634447413
2010-01-01	27.9499854055267
2010-04-01	28.3198676199366
2010-07-01	29.2093997548351
2010-10-01	28.5296433128802
2011-01-01	29.6755300547301
2011-04-01	30.0752406140495
2011-07-01	29.9132103331938
2011-10-01	29.2706956212554
2012-01-01	29.3497857077087
2012-04-01	30.4310547733560
2012-07-01	29.7084836196480
2012-10-01	28.8813525305142
2013-01-01	29.2076021443478
2013-04-01	29.6301150944058
2013-07-01	29.3039574406098
2013-10-01	29.8314108751228
2014-01-01	29.3176007515082
2014-04-01	28.8113189834631
2014-07-01	29.2726112647607
2014-10-01	28.9998611621836
2015-01-01	28.9237260607658
2015-04-01	27.8462345577054
2015-07-01	27.6046093466703
2015-10-01	28.6086922786121
2016-01-01	28.9348004856553
2016-04-01	28.2193956374409
2016-07-01	28.8577286087911
2016-10-01	27.4557754343479
2017-01-01	26.3757304515609
2017-04-01	26.1747966086515
2017-07-01	25.3904086264504
2017-10-01	25.1987578135068
2018-01-01	25.2879718705260
2018-04-01	24.9735643835367