Quarter	Percent, Seasonally Adjusted
2000-01-01	50.4750052490353
2000-04-01	51.1583011174899
2000-07-01	50.8313627956447
2000-10-01	50.4313754747752
2001-01-01	50.9252370667494
2001-04-01	50.7514069248968
2001-07-01	51.3701863986529
2001-10-01	51.3867107272282
2002-01-01	51.5693641215705
2002-04-01	51.6110368998750
2002-07-01	51.6848276754929
2002-10-01	51.6826982681783
2003-01-01	51.8655707909121
2003-04-01	52.4031231872953
2003-07-01	53.3357493165359
2003-10-01	53.8078627318854
2004-01-01	53.3958904527904
2004-04-01	53.1171975995563
2004-07-01	52.2436839333248
2004-10-01	52.8785693224670
2005-01-01	53.2587797090086
2005-04-01	54.1516469941506
2005-07-01	53.8500590195676
2005-10-01	54.8159483680662
2006-01-01	56.2312033800610
2006-04-01	57.4239049708201
2006-07-01	57.0499153249536
2006-10-01	57.5018122716684
2007-01-01	57.3844625795896
2007-04-01	58.1152912567136
2007-07-01	57.9648337209617
2007-10-01	57.6228098534274
2008-01-01	58.3352246174309
2008-04-01	57.7854427730755
2008-07-01	57.4771135889641
2008-10-01	57.4934071906455
2009-01-01	54.6798863328830
2009-04-01	52.3620069289499
2009-07-01	51.9932894032717
2009-10-01	50.9387999306135
2010-01-01	49.6154438723127
2010-04-01	49.5191361607223
2010-07-01	50.2452140783271
2010-10-01	52.1858499525952
2011-01-01	52.8035831063342
2011-04-01	53.2096236481341
2011-07-01	54.6857443163633
2011-10-01	54.2919160863485
2012-01-01	54.8020266076497
2012-04-01	55.1410020149327
2012-07-01	55.6345640371810
2012-10-01	55.0813012079781
2013-01-01	55.7112956058440
2013-04-01	56.9895724042679
2013-07-01	55.8685332432306
2013-10-01	55.5491886443037
2014-01-01	55.5719482046574
2014-04-01	56.9900328879184
2014-07-01	56.7034782406489
2014-10-01	57.2453496022538
2015-01-01	57.3712827646735
2015-04-01	58.1374208655842
2015-07-01	59.3664844280810
2015-10-01	58.2373399350097
2016-01-01	57.9576215082163
2016-04-01	59.6481859837959
2016-07-01	58.7053506811588
2016-10-01	58.1462780832543
2017-01-01	59.4961911359554
2017-04-01	59.3691872078011
2017-07-01	60.1054194323119
2017-10-01	60.9893112798503
2018-01-01	59.6833426258124
2018-04-01	60.4384923160614