Quarter	Percent, Seasonally Adjusted
1999-01-01	41.2397540983607
1999-04-01	42.2782223735740
1999-07-01	41.1465400271370
1999-10-01	41.1463664278403
2000-01-01	42.4529900050822
2000-04-01	43.0600169061708
2000-07-01	41.4855987872663
2000-10-01	40.4790015179626
2001-01-01	40.9320323014805
2001-04-01	41.7855344856520
2001-07-01	41.3729439409198
2001-10-01	42.1979865771812
2002-01-01	44.2304471612795
2002-04-01	43.7980608492143
2002-07-01	44.1348239612882
2002-10-01	43.3449941695819
2003-01-01	45.0182663566921
2003-04-01	43.9504132231405
2003-07-01	43.5297991438920
2003-10-01	43.8012463102657
2004-01-01	43.1769897042000
2004-04-01	44.5657487371680
2004-07-01	45.2566601689409
2004-10-01	45.7402008422417
2005-01-01	45.6511215104083
2005-04-01	46.6184738955823
2005-07-01	46.0259075643691
2005-10-01	45.7006369426752
2006-01-01	44.9445324881141
2006-04-01	45.5490783047109
2006-07-01	45.2750352609309
2006-10-01	44.9259547934528
2007-01-01	45.9689922480620
2007-04-01	46.6635845276622
2007-07-01	48.0312547878045
2007-10-01	47.3106810909645
2008-01-01	46.4562149036273
2008-04-01	47.5362756952842
2008-07-01	46.8684131285757
2008-10-01	45.7627118644068
2009-01-01	46.3885150291611
2009-04-01	45.8053941290419
2009-07-01	45.9013959013959
2009-10-01	45.8111308466548
2010-01-01	47.1065839976380
2010-04-01	47.2770091256991
2010-07-01	47.4024068095098
2010-10-01	47.9151426481346
2011-01-01	46.7892586106246
2011-04-01	46.9791818314165
2011-07-01	46.6676346740235
2011-10-01	45.3505214368482
2012-01-01	46.5405171168569
2012-04-01	47.1062482004031
2012-07-01	47.8335724533716
2012-10-01	46.4035464035464
2013-01-01	46.0176991150442
2013-04-01	47.3774230330673
2013-07-01	46.7406774836322
2013-10-01	47.2861608411481
2014-01-01	46.7442190381614
2014-04-01	47.0138692329465
2014-07-01	48.1931112365895
2014-10-01	48.0000000000000
2015-01-01	49.5567750105530
2015-04-01	50.1192647677845
2015-07-01	50.3497481813095
2015-10-01	49.5675223214286
2016-01-01	49.6660172557751
2016-04-01	50.9227140280283
2016-07-01	50.9961261759823
2016-10-01	52.2416885087598
2017-01-01	52.7010309278350
2017-04-01	54.6812885538040
2017-07-01	55.5980861244019
2017-10-01	55.5070883315158
2018-01-01	57.6750509857240
2018-04-01	58.3525267578919