Quarter	Percent, Seasonally Adjusted
1999-01-01	31.8657904820562
1999-04-01	34.6852332850044
1999-07-01	34.2995171510144
1999-10-01	34.9932175722595
2000-01-01	38.8944066356862
2000-04-01	39.5330997123378
2000-07-01	43.6570536256290
2000-10-01	47.0201631681260
2001-01-01	45.5901291290424
2001-04-01	47.0275899909457
2001-07-01	46.3386594574830
2001-10-01	51.7086727886934
2002-01-01	50.3890171510695
2002-04-01	54.0970990860828
2002-07-01	49.5193096128278
2002-10-01	55.0751043092657
2003-01-01	50.1291353514008
2003-04-01	49.0575184567687
2003-07-01	50.2137669180478
2003-10-01	54.5229839672300
2004-01-01	52.7404179869392
2004-04-01	53.4140339275702
2004-07-01	55.3030206287655
2004-10-01	55.1941457217129
2005-01-01	54.2321875548703
2005-04-01	58.3194269799997
2005-07-01	59.9575953197536
2005-10-01	63.7486089596803
2006-01-01	64.4407588591524
2006-04-01	65.1360672100780
2006-07-01	64.3019524675044
2006-10-01	62.0991523203419
2007-01-01	62.5539991936334
2007-04-01	63.6770612023337
2007-07-01	61.2766872185125
2007-10-01	58.7478771815689
2008-01-01	68.6751494366184
2008-04-01	67.4590686451732
2008-07-01	66.3235757655306
2008-10-01	55.7421210279441
2009-01-01	46.8494867617255
2009-04-01	45.9943544227757
2009-07-01	50.7631990938302
2009-10-01	51.7287095593549
2010-01-01	55.1063321842225
2010-04-01	60.9893020833200
2010-07-01	64.9360110706839
2010-10-01	68.6724406795204
2011-01-01	74.5029098847885
2011-04-01	73.4574726694007
2011-07-01	71.9762655025347
2011-10-01	71.9663526370492
2012-01-01	74.9441014553138
2012-04-01	67.7311642651985
2012-07-01	77.0848562150059
2012-10-01	77.9398049252439
2013-01-01	78.8207069881208
2013-04-01	71.0417557150043
2013-07-01	75.4375880900432
2013-10-01	75.2539749313746
2014-01-01	68.9667270417818
2014-04-01	71.1462977177165
2014-07-01	71.4145886731645
2014-10-01	71.6100919019842
2015-01-01	67.7795963055841
2015-04-01	71.8738953703788
2015-07-01	66.6798247036146
2015-10-01	65.2559997727443
2016-01-01	63.3766668096959
2016-04-01	64.0299271411530
2016-07-01	62.2522025689302
2016-10-01	64.3411642293834
2017-01-01	68.0953840938079
2017-04-01	67.3384563423850
2017-07-01	66.9675263589625
2017-10-01	68.2037025396919
2018-01-01	70.2284747570362
2018-04-01	67.9692721029690