Quarter	Percent, Seasonally Adjusted
1998-01-01	21.9885199196055
1998-04-01	21.5998404955153
1998-07-01	21.7279489695708
1998-10-01	21.9593600697468
1999-01-01	22.8915056277795
1999-04-01	23.1059008622935
1999-07-01	23.1317996968141
1999-10-01	23.0795974473494
2000-01-01	22.1555172054552
2000-04-01	22.1188919140377
2000-07-01	21.5039443579185
2000-10-01	20.6789274328927
2001-01-01	21.7179340855836
2001-04-01	21.5980428362100
2001-07-01	21.3779464795655
2001-10-01	21.7946501466421
2002-01-01	20.4971650278593
2002-04-01	19.5478616762997
2002-07-01	19.2698953879820
2002-10-01	19.0246309818140
2003-01-01	18.7468206893638
2003-04-01	18.4985992134146
2003-07-01	19.0253221377087
2003-10-01	18.8197936740699
2004-01-01	20.0996026096723
2004-04-01	19.3304126712440
2004-07-01	18.1016366755320
2004-10-01	18.2545351162563
2005-01-01	18.5879421847811
2005-04-01	18.4504587296894
2005-07-01	19.9083965004161
2005-10-01	18.6554770461647
2006-01-01	17.5680359153603
2006-04-01	18.2457959078797
2006-07-01	17.1694158714512
2006-10-01	17.3466408223103
2007-01-01	16.5549185553237
2007-04-01	15.0186455304347
2007-07-01	15.0896847731184
2007-10-01	15.3381896849133
2008-01-01	16.2995584444443
2008-04-01	16.3124362280823
2008-07-01	17.2460823877008
2008-10-01	17.6963822045089
2009-01-01	18.4283450477095
2009-04-01	18.9392179338195
2009-07-01	19.5216816170465
2009-10-01	21.1848286596212
2010-01-01	23.2586822831682
2010-04-01	25.5213524637351
2010-07-01	27.4549212571671
2010-10-01	31.3552567294019
2011-01-01	33.7243904211374
2011-04-01	37.5330736971717
2011-07-01	40.9829993904774
2011-10-01	43.2833751899698
2012-01-01	44.9762501727431
2012-04-01	47.3156488909938
2012-07-01	50.1161898477383
2012-10-01	51.6078874150458
2013-01-01	53.7498042963261
2013-04-01	54.7675705076657
2013-07-01	54.3653234396775
2013-10-01	52.1251666095476
2014-01-01	50.9328466284828
2014-04-01	47.5033247859066
2014-07-01	45.1164832749901
2014-10-01	45.9266483673516
2015-01-01	45.1666561350129
2015-04-01	45.3210721087320
2015-07-01	45.9346115824860
2015-10-01	44.4915330395106
2016-01-01	45.3531798805573
2016-04-01	45.7409733164914
2016-07-01	43.7925489807979
2016-10-01	42.4074760544987
2017-01-01	40.6318909883652
2017-04-01	39.3747694958584
2017-07-01	38.5074797996596
2017-10-01	38.7251513545844
2018-01-01	38.1284115507206
2018-04-01	35.8018380382213