Quarter	Percent, Seasonally Adjusted
1999-04-01	47.9633030757734
1999-07-01	48.2366537383609
1999-10-01	47.9655829784592
2000-01-01	47.7829788207824
2000-04-01	47.2280525767300
2000-07-01	46.7366362635777
2000-10-01	46.4876111409537
2001-01-01	46.2369118098355
2001-04-01	46.0720590685462
2001-07-01	45.7788564854947
2001-10-01	45.4955506468870
2002-01-01	45.3189280903163
2002-04-01	44.9401355338100
2002-07-01	44.5675929890366
2002-10-01	44.0405849167350
2003-01-01	43.8240551866844
2003-04-01	42.7055138123553
2003-07-01	42.3327933732269
2003-10-01	42.5188765500719
2004-01-01	42.3764535755587
2004-04-01	42.0934101059315
2004-07-01	42.4468254579595
2004-10-01	41.9252128949429
2005-01-01	41.6338521152666
2005-04-01	41.6663462802678
2005-07-01	41.7042458680465
2005-10-01	41.3365258176719
2006-01-01	41.4571716085076
2006-04-01	41.0008336630540
2006-07-01	40.4976634266252
2006-10-01	40.6796906539490
2007-01-01	40.9893090325052
2007-04-01	40.8203671178960
2007-07-01	40.9409075242609
2007-10-01	40.1745539036711
2008-01-01	40.4119227603101
2008-04-01	40.1970966042628
2008-07-01	40.3594621623702
2008-10-01	39.6828188497476
2009-01-01	39.5386575053628
2009-04-01	39.6475108663544
2009-07-01	39.8357025109532
2009-10-01	39.8268738534687
2010-01-01	39.6144480730113
2010-04-01	40.2383820310120
2010-07-01	39.7254520970616
2010-10-01	40.4391904543542
2011-01-01	40.1581278169987
2011-04-01	40.4136397654595
2011-07-01	40.4640898742576
2011-10-01	40.2585652232423
2012-01-01	39.5487782057348
2012-04-01	38.9907402313576
2012-07-01	38.7946351361457
2012-10-01	38.2330500995453
2013-01-01	38.0803688475442
2013-04-01	37.4313377176358
2013-07-01	36.7631439048434
2013-10-01	36.4820478023636
2014-01-01	36.3720397225417
2014-04-01	36.5014608979034
2014-07-01	36.5797753310906
2014-10-01	36.3530078803556
2015-01-01	36.1463315672941
2015-04-01	36.0319360051615
2015-07-01	35.3449777979038
2015-10-01	34.8261908634104
2016-01-01	34.5065133377842
2016-04-01	34.0682927104522
2016-07-01	34.2051055578155
2016-10-01	34.0486323149193
2017-01-01	33.6702643218966
2017-04-01	33.6240561034196
2017-07-01	33.6783690920961
2017-10-01	33.3321560274878
2018-01-01	32.6745616062378
2018-04-01	32.6192489117349