Quarter	Percent, Seasonally Adjusted
1999-01-01	42.7930780728783
1999-04-01	43.1301982242510
1999-07-01	43.7299418188214
1999-10-01	44.4328775604596
2000-01-01	44.6812812217912
2000-04-01	45.0991986579946
2000-07-01	45.4282687246109
2000-10-01	45.6525753063140
2001-01-01	43.8123624955459
2001-04-01	43.8572886571462
2001-07-01	44.3831038345413
2001-10-01	44.7436966457895
2002-01-01	46.0923681949148
2002-04-01	46.8585038796294
2002-07-01	47.3190089640700
2002-10-01	47.5872705763635
2003-01-01	48.0541453778460
2003-04-01	48.5702375928406
2003-07-01	49.1977647706597
2003-10-01	49.5053204627540
2004-01-01	49.7041716706306
2004-04-01	50.0962112183429
2004-07-01	50.6090098547145
2004-10-01	51.1548768328383
2005-01-01	51.2273818909397
2005-04-01	51.9036736954082
2005-07-01	51.8343009115982
2005-10-01	52.4140530831092
2006-01-01	53.0147168281526
2006-04-01	53.5334483114340
2006-07-01	53.5844198317035
2006-10-01	54.3273724276762
2007-01-01	54.4923178528777
2007-04-01	54.7291835266193
2007-07-01	55.2039120059447
2007-10-01	55.4972356163695
2008-01-01	55.8353233197951
2008-04-01	56.3694330968625
2008-07-01	56.6076988949730
2008-10-01	57.4999429852481
2009-01-01	57.7234469277171
2009-04-01	57.9121508171300
2009-07-01	58.0091994424954
2009-10-01	58.1440981167780
2010-01-01	58.5880432244190
2010-04-01	58.8480556876394
2010-07-01	59.0535395988369
2010-10-01	59.2823686007412
2011-01-01	59.4060137838612
2011-04-01	60.0135144321536
2011-07-01	59.9253340252305
2011-10-01	59.9478447055029
2012-01-01	60.5080716485665
2012-04-01	60.5677066661746
2012-07-01	60.7466023346134
2012-10-01	60.7263632954348
2013-01-01	60.8041798120514
2013-04-01	60.6339008176887
2013-07-01	60.5765258948693
2013-10-01	60.6233581269773
2014-01-01	60.4325765513344
2014-04-01	60.2795517078071
2014-07-01	60.0181383699970
2014-10-01	60.4685601436968
2015-01-01	60.1114616017863
2015-04-01	60.6847197520439
2015-07-01	60.0568787516955
2015-10-01	60.4512813996807
2016-01-01	60.3443674094216
2016-04-01	60.5740247860784
2016-07-01	60.3328947437497
2016-10-01	60.0070113668761
2017-01-01	59.8372109107004
2017-04-01	59.7259990941791
2017-07-01	59.6991730345879
2017-10-01	59.8859194092717
2018-01-01	59.5378207024442
2018-04-01	59.8316080468590
2018-07-01	59.6219020539086