Quarter	Percent, Seasonally Adjusted
1999-01-01	24.5252246424515
1999-04-01	23.7768303925073
1999-07-01	24.9973663223219
1999-10-01	26.6115590594446
2000-01-01	28.3733516048609
2000-04-01	25.8341146749131
2000-07-01	26.7003218606296
2000-10-01	25.3217088556196
2001-01-01	27.0749923770784
2001-04-01	30.5124907655491
2001-07-01	29.5619912039735
2001-10-01	31.8934544438172
2002-01-01	30.1716747727917
2002-04-01	29.1878133564312
2002-07-01	29.0221892487060
2002-10-01	28.7529676405384
2003-01-01	31.6626896532472
2003-04-01	31.6828289784145
2003-07-01	32.1294324844339
2003-10-01	33.7059537759463
2004-01-01	29.2066342209702
2004-04-01	30.4508989300710
2004-07-01	27.6549600749757
2004-10-01	33.8716765640836
2005-01-01	28.3146900801228
2005-04-01	28.9571927666452
2005-07-01	31.7946293092198
2005-10-01	30.9101992142106
2006-01-01	30.7782540095010
2006-04-01	31.6442347479405
2006-07-01	27.6286941974672
2006-10-01	27.8124917811738
2007-01-01	26.4867019183933
2007-04-01	26.9501639810737
2007-07-01	29.0369355131272
2007-10-01	29.4388333453354
2008-01-01	29.9116080006682
2008-04-01	27.0025404224745
2008-07-01	26.7908983906864
2008-10-01	25.0754078322604
2009-01-01	25.2970933735304
2009-04-01	27.3703120773545
2009-07-01	28.4964251053073
2009-10-01	31.8560922354952
2010-01-01	32.0081516476892
2010-04-01	31.5926924903883
2010-07-01	33.6941507656620
2010-10-01	32.4255723177540
2011-01-01	32.1073757637914
2011-04-01	33.2935022073946
2011-07-01	32.5354059314783
2011-10-01	33.6542418741095
2012-01-01	35.0648285773334
2012-04-01	34.7817440835095
2012-07-01	36.3727835509039
2012-10-01	37.4156656458080
2013-01-01	37.3877313085409
2013-04-01	38.6432676202943
2013-07-01	39.2985808127671
2013-10-01	40.4679875044731
2014-01-01	39.3300408485361
2014-04-01	40.2666605606306
2014-07-01	38.1979536793214
2014-10-01	38.0496476829090
2015-01-01	39.0473297346008
2015-04-01	39.3450998509368
2015-07-01	37.6137672679728
2015-10-01	37.1022038120162
2016-01-01	36.0022605278617
2016-04-01	34.8648693124186
2016-07-01	34.0520772818996
2016-10-01	35.0572517665192
2017-01-01	36.2694002910450
2017-04-01	37.6915653174571
2017-07-01	37.4615155713180
2017-10-01	38.7782268546652
2018-01-01	38.2235276842880
2018-04-01	37.5912226070201