Quarter	Percent, Seasonally Adjusted
2000-01-01	21.6883345460466
2000-04-01	21.3701721877345
2000-07-01	21.4634361968918
2000-10-01	20.9030038716857
2001-01-01	19.2299383270431
2001-04-01	21.3459040259023
2001-07-01	20.6610030190644
2001-10-01	20.2524649796220
2002-01-01	19.4736000833459
2002-04-01	19.3467061456987
2002-07-01	17.2868818465591
2002-10-01	19.6547382991758
2003-01-01	20.4995431843685
2003-04-01	20.2174165906284
2003-07-01	18.5281869777381
2003-10-01	19.8489249725591
2004-01-01	19.6355817217165
2004-04-01	19.3091144866859
2004-07-01	19.0762608383327
2004-10-01	19.4594576219834
2005-01-01	19.1328813443882
2005-04-01	19.7395728589857
2005-07-01	20.0272169299937
2005-10-01	19.7801500896775
2006-01-01	18.9594509949585
2006-04-01	18.9226000617546
2006-07-01	19.3052126622387
2006-10-01	18.9381857344945
2007-01-01	19.4495076910658
2007-04-01	18.9772305055135
2007-07-01	19.3258554008002
2007-10-01	19.8623477332663
2008-01-01	20.3762915489042
2008-04-01	20.9066037858946
2008-07-01	20.6161074826239
2008-10-01	20.8018043428277
2009-01-01	21.3071808412435
2009-04-01	21.6336356802651
2009-07-01	21.8718636016296
2009-10-01	22.6896210661363
2010-01-01	22.7654594744330
2010-04-01	23.7664918181116
2010-07-01	24.8200948986563
2010-10-01	25.4246611095990
2011-01-01	26.5651070722203
2011-04-01	27.1619517306185
2011-07-01	27.4094730824314
2011-10-01	27.7436983683320
2012-01-01	28.3997289723135
2012-04-01	28.8605081008582
2012-07-01	29.5879913530588
2012-10-01	30.0289741794782
2013-01-01	30.2148700042569
2013-04-01	30.7669662990472
2013-07-01	31.1879356377097
2013-10-01	31.8686338175762
2014-01-01	32.4296038894447
2014-04-01	32.6956439245699
2014-07-01	33.0316316146325
2014-10-01	33.5240078790445
2015-01-01	34.4965161050814
2015-04-01	34.9262864662961
2015-07-01	35.9227957505029
2015-10-01	36.7894323456877
2016-01-01	36.8260340627798
2016-04-01	37.4435832382141
2016-07-01	37.6830485127463
2016-10-01	38.5640644986508
2017-01-01	38.9618616946946
2017-04-01	39.6185118066326
2017-07-01	39.6286628057839
2017-10-01	38.9457110685396
2018-01-01	39.4257179997882
2018-04-01	39.5563042184256