Quarter	Percent, Seasonally Adjusted
1999-01-01	51.2795269616078
1999-04-01	51.2627589665672
1999-07-01	51.2900809052791
1999-10-01	51.8426924255733
2000-01-01	52.0705989752989
2000-04-01	50.6558096727292
2000-07-01	50.8007280474418
2000-10-01	51.5037397378867
2001-01-01	52.1808545654106
2001-04-01	52.4971233297413
2001-07-01	52.6212844131322
2001-10-01	51.9951807156606
2002-01-01	51.6122845712478
2002-04-01	51.6184019709510
2002-07-01	50.8857652819880
2002-10-01	50.9585262478866
2003-01-01	50.7667591047783
2003-04-01	51.1808618170040
2003-07-01	50.9653779116784
2003-10-01	49.7191409970246
2004-01-01	49.8767744004183
2004-04-01	49.5026829365261
2004-07-01	49.2523115851832
2004-10-01	49.0074556529770
2005-01-01	48.2543318253680
2005-04-01	47.8511017162374
2005-07-01	48.4941632964254
2005-10-01	48.2674050722403
2006-01-01	48.4413899323399
2006-04-01	47.9999755858387
2006-07-01	47.7125372989648
2006-10-01	47.3433744780488
2007-01-01	47.3054427837590
2007-04-01	46.7868264315668
2007-07-01	47.4179341368213
2007-10-01	46.0820795590945
2008-01-01	46.1639289497756
2008-04-01	47.0642692784923
2008-07-01	45.8334207027408
2008-10-01	46.6868057942992
2009-01-01	46.1217742225045
2009-04-01	46.3383996993228
2009-07-01	46.3987722456813
2009-10-01	46.2831261479248
2010-01-01	44.8818741739878
2010-04-01	46.2809975050362
2010-07-01	45.7101012573594
2010-10-01	44.8302925593018
2011-01-01	46.8003490063989
2011-04-01	45.6387526163336
2011-07-01	45.8861941605016
2011-10-01	46.2213042699167
2012-01-01	46.6135916211277
2012-04-01	46.3114468101538
2012-07-01	45.7480141874584
2012-10-01	45.3841523372723
2013-01-01	45.7585572436307
2013-04-01	45.4779661287934
2013-07-01	44.4883549542465
2013-10-01	45.4974298094358
2014-01-01	45.3823064869540
2014-04-01	44.7028212498161
2014-07-01	44.5068609344640
2014-10-01	44.7091451267921
2015-01-01	44.5164615833313
2015-04-01	45.3796406294022
2015-07-01	45.2064747481223
2015-10-01	44.6571144735540
2016-01-01	45.3808668817997
2016-04-01	45.4734181722642
2016-07-01	45.7394663937776
2016-10-01	44.5201112261439
2017-01-01	45.4355351478000
2017-04-01	45.0001743226577
2017-07-01	45.1384060024851
2017-10-01	44.8415432550985
2018-01-01	44.7287122298642
2018-04-01	44.8824180666230