Quarter	Percent, Seasonally Adjusted
1998-01-01	40.5276058156280
1998-04-01	40.2502579967371
1998-07-01	39.6733251410518
1998-10-01	39.3886562059039
1999-01-01	38.2620825628792
1999-04-01	38.4559300693256
1999-07-01	38.7666175398398
1999-10-01	38.5502908040344
2000-01-01	38.4183743592248
2000-04-01	38.0390359880554
2000-07-01	37.6914304054643
2000-10-01	37.6863208125366
2001-01-01	37.5978805760691
2001-04-01	38.4716155613084
2001-07-01	38.5432535604206
2001-10-01	38.4282964283678
2002-01-01	37.7024464880130
2002-04-01	36.6715843956466
2002-07-01	36.0887300240634
2002-10-01	35.3533441730199
2003-01-01	35.3304309519304
2003-04-01	34.9429462936270
2003-07-01	34.3237572284630
2003-10-01	33.8957321991674
2004-01-01	32.6885143909258
2004-04-01	32.5297409355644
2004-07-01	32.0515591122550
2004-10-01	31.8414362264137
2005-01-01	31.9666515449382
2005-04-01	31.6412774224204
2005-07-01	31.6885048890287
2005-10-01	31.1356156103526
2006-01-01	31.2146719058993
2006-04-01	30.9239928009420
2006-07-01	30.3375930541607
2006-10-01	30.5337972738653
2007-01-01	30.7036134290245
2007-04-01	30.7147267105307
2007-07-01	30.9097735588629
2007-10-01	30.9600149267982
2008-01-01	30.6984722887805
2008-04-01	30.7238124277762
2008-07-01	30.3875072567572
2008-10-01	30.0218752780373
2009-01-01	29.3955622633053
2009-04-01	29.0080300724306
2009-07-01	28.7343816264102
2009-10-01	28.2801807914212
2010-01-01	28.0112395999770
2010-04-01	27.5737574654560
2010-07-01	27.5657555381188
2010-10-01	27.4284462758641
2011-01-01	27.3062241584131
2011-04-01	27.9017897533430
2011-07-01	27.3433983519098
2011-10-01	26.2574944801199
2012-01-01	26.2109920641830
2012-04-01	26.2397814370256
2012-07-01	25.9884566581053
2012-10-01	25.6168650278058
2013-01-01	26.0431236777912
2013-04-01	25.4824457810821
2013-07-01	25.4814424743173
2013-10-01	25.8574222556775
2014-01-01	25.0104910272693
2014-04-01	24.7063747015135
2014-07-01	24.2253220920633
2014-10-01	23.7160050820297
2015-01-01	23.0770347230075
2015-04-01	22.3444420830652
2015-07-01	22.0464767508926
2015-10-01	21.8316100829654
2016-01-01	21.7984219190008
2016-04-01	22.2207863410040
2016-07-01	22.1078137647595
2016-10-01	22.8873768194605
2017-01-01	23.1421310636067
2017-04-01	22.4693708405957
2017-07-01	23.0768397181867
2017-10-01	23.3963512148961
2018-01-01	23.6874268367650
2018-04-01	23.2239604101436