Quarter	Percent, Seasonally Adjusted
1999-01-01	18.8814330256726
1999-04-01	20.1318372644140
1999-07-01	20.9200485463675
1999-10-01	21.2059024977022
2000-01-01	27.1238105712067
2000-04-01	26.1211608642476
2000-07-01	30.6612272080012
2000-10-01	31.3692623718488
2001-01-01	32.1785893634112
2001-04-01	35.4009785170339
2001-07-01	33.5774270678246
2001-10-01	33.5706656482952
2002-01-01	33.3546898452810
2002-04-01	39.0152921594417
2002-07-01	36.0813606481630
2002-10-01	36.9909335360715
2003-01-01	37.4333657236098
2003-04-01	34.7064147420501
2003-07-01	37.0701652899463
2003-10-01	38.5774066158194
2004-01-01	38.7550949047158
2004-04-01	39.1381909630796
2004-07-01	41.1592758208190
2004-10-01	44.3506866957212
2005-01-01	42.3480988647747
2005-04-01	43.1396539660458
2005-07-01	44.9174670063966
2005-10-01	49.3461587812472
2006-01-01	48.6237401273730
2006-04-01	49.6926871745570
2006-07-01	45.5446118127721
2006-10-01	43.4278279529817
2007-01-01	43.2758334967055
2007-04-01	44.0978908709438
2007-07-01	43.6965985425990
2007-10-01	41.3568276577880
2008-01-01	47.7431666194055
2008-04-01	51.3559594186044
2008-07-01	52.5383434089352
2008-10-01	44.0269929628785
2009-01-01	42.0651960297740
2009-04-01	40.3957302696750
2009-07-01	45.0731309998220
2009-10-01	48.0626166476742
2010-01-01	48.0695710354079
2010-04-01	54.6433420697844
2010-07-01	56.7216303232458
2010-10-01	61.7233044335860
2011-01-01	65.0998489217265
2011-04-01	64.3667369052572
2011-07-01	64.0469968660659
2011-10-01	64.0353769983189
2012-01-01	65.9190928567940
2012-04-01	63.7437523024836
2012-07-01	70.9846072285150
2012-10-01	74.8597639131758
2013-01-01	76.2361133648294
2013-04-01	67.6896797190858
2013-07-01	69.1478181719498
2013-10-01	68.3983337790989
2014-01-01	64.2619519104648
2014-04-01	67.0901677091980
2014-07-01	67.9024492969441
2014-10-01	66.5618921881973
2015-01-01	60.3038895736319
2015-04-01	63.1002996877105
2015-07-01	60.4981470041603
2015-10-01	60.4017438618143
2016-01-01	59.1895689240230
2016-04-01	57.2948475004998
2016-07-01	57.1670558651941
2016-10-01	58.9971066573459
2017-01-01	63.1051330685376
2017-04-01	62.8641658691190
2017-07-01	60.7329426523496
2017-10-01	63.3867919080965
2018-01-01	63.8758476914295
2018-04-01	62.1465929776582