Quarter	Percent, Seasonally Adjusted
1999-01-01	38.7029854733456
1999-04-01	38.5989233010991
1999-07-01	38.9596559196292
1999-10-01	38.9849530493601
2000-01-01	39.6832119005220
2000-04-01	40.7391882724164
2000-07-01	41.3169878526483
2000-10-01	41.7580807854716
2001-01-01	41.5121527802693
2001-04-01	41.6921030888047
2001-07-01	42.0606429672230
2001-10-01	42.2758792574235
2002-01-01	42.4866705334024
2002-04-01	42.9297098408610
2002-07-01	43.0648901913373
2002-10-01	43.5611132257925
2003-01-01	43.5762477517462
2003-04-01	43.8754799043334
2003-07-01	44.1840076474608
2003-10-01	44.3414023773603
2004-01-01	44.3179287666476
2004-04-01	44.2352856198463
2004-07-01	44.5336640627074
2004-10-01	44.6983961156670
2005-01-01	45.4550905825706
2005-04-01	46.0372557984901
2005-07-01	45.7433197737330
2005-10-01	46.6792565230839
2006-01-01	47.0282484542697
2006-04-01	46.7634308996935
2006-07-01	46.5372398392312
2006-10-01	46.8942169401693
2007-01-01	46.8526960404028
2007-04-01	47.3471941228197
2007-07-01	47.3584062025447
2007-10-01	47.8668877727592
2008-01-01	48.4138698648496
2008-04-01	48.9516045381764
2008-07-01	49.1122031593382
2008-10-01	49.8431986527376
2009-01-01	49.9425714943447
2009-04-01	50.4262907987834
2009-07-01	49.7244114264521
2009-10-01	49.9418818871390
2010-01-01	50.2849986422065
2010-04-01	50.3825360067235
2010-07-01	51.0100256458716
2010-10-01	51.3147216042764
2011-01-01	51.7683538035863
2011-04-01	52.3287033101272
2011-07-01	52.5571354998298
2011-10-01	52.9631419209883
2012-01-01	52.9258327700362
2012-04-01	53.7546312444737
2012-07-01	53.8164148370240
2012-10-01	53.5429268835970
2013-01-01	53.6680862663710
2013-04-01	53.7978259931538
2013-07-01	54.3163255074537
2013-10-01	54.4834370675616
2014-01-01	54.4814213397942
2014-04-01	55.2626163349960
2014-07-01	55.4439810358292
2014-10-01	56.3655250639589
2015-01-01	56.6855389043169
2015-04-01	57.4007266254900
2015-07-01	57.7447197959097
2015-10-01	58.6873603047935
2016-01-01	59.1108388101358
2016-04-01	58.8621254261225
2016-07-01	59.4147641898080
2016-10-01	59.2496399850571
2017-01-01	59.2703961996035
2017-04-01	59.6806076759462
2017-07-01	59.6824423243219
2017-10-01	59.9280788070060
2018-01-01	60.1149261071651
2018-04-01	60.3770886963804
2018-07-01	60.2797799691150