Quarter	Percent, Seasonally Adjusted
1998-01-01	23.7742159638526
1998-04-01	24.0601946466818
1998-07-01	23.5012639632874
1998-10-01	24.4390130454222
1999-01-01	24.2572744378180
1999-04-01	24.6243329642642
1999-07-01	24.1386273866220
1999-10-01	24.6958076429878
2000-01-01	24.2163683417551
2000-04-01	23.1309960687538
2000-07-01	23.5944910719528
2000-10-01	23.6715120626744
2001-01-01	23.8289127697734
2001-04-01	23.9762081982849
2001-07-01	24.9963058996857
2001-10-01	25.3887231795886
2002-01-01	26.2970143769181
2002-04-01	26.9375451796217
2002-07-01	27.5591476640128
2002-10-01	28.0331518312246
2003-01-01	28.7389164853854
2003-04-01	30.2656826929839
2003-07-01	30.7449347598028
2003-10-01	30.1414363140150
2004-01-01	31.2504948588237
2004-04-01	31.3486794535172
2004-07-01	31.3629010190357
2004-10-01	31.3813866363871
2005-01-01	32.1049586487810
2005-04-01	32.5144324300748
2005-07-01	33.7054638348553
2005-10-01	33.4333682878751
2006-01-01	34.0101043718964
2006-04-01	34.2384178139446
2006-07-01	34.1061902082741
2006-10-01	33.6519376413925
2007-01-01	34.5557424992827
2007-04-01	35.3462679696828
2007-07-01	35.2938809588579
2007-10-01	35.6129906327060
2008-01-01	35.7365517268688
2008-04-01	36.3189206977298
2008-07-01	35.6126181338417
2008-10-01	36.6482971221825
2009-01-01	37.1911405522669
2009-04-01	37.3750602622465
2009-07-01	37.3772363010112
2009-10-01	36.7300213988601
2010-01-01	37.6346670938510
2010-04-01	37.7475820119892
2010-07-01	37.4822457868126
2010-10-01	38.9368288425011
2011-01-01	39.4844005482563
2011-04-01	39.2149696224176
2011-07-01	39.4037692498624
2011-10-01	39.5099215180249
2012-01-01	39.6984604369852
2012-04-01	41.1383294214382
2012-07-01	41.9982395318875
2012-10-01	43.2669807511853
2013-01-01	43.2897795561212
2013-04-01	43.6976609909427
2013-07-01	44.5059162421496
2013-10-01	45.4199338362745
2014-01-01	45.7398926580450
2014-04-01	45.6741255663291
2014-07-01	46.9557426726821
2014-10-01	47.0341209887843
2015-01-01	47.5906467923586
2015-04-01	48.4427781303207
2015-07-01	48.6632288231948
2015-10-01	48.3574176372544
2016-01-01	49.6392262637833
2016-04-01	50.8046045054859
2016-07-01	51.4046370933317
2016-10-01	53.1027578391651
2017-01-01	54.1187551257519
2017-04-01	53.5556576575354
2017-07-01	54.8870998308521
2017-10-01	55.5752388372540
2018-01-01	57.0896678053152
2018-04-01	57.7434344152712