Quarter	Percent, Seasonally Adjusted
1999-04-01	41.4898517741168
1999-07-01	41.0652616423272
1999-10-01	40.8187616001265
2000-01-01	40.6414553103329
2000-04-01	40.4342307363908
2000-07-01	40.4285755606765
2000-10-01	40.4216913593785
2001-01-01	40.3003754219065
2001-04-01	40.2314461442758
2001-07-01	39.8400050474874
2001-10-01	39.9365284061004
2002-01-01	39.8554426681559
2002-04-01	39.9199711860537
2002-07-01	40.1026334123151
2002-10-01	39.9941962166431
2003-01-01	39.9578854249094
2003-04-01	39.8049525708980
2003-07-01	39.7345583215038
2003-10-01	39.5865775609189
2004-01-01	39.4006747962354
2004-04-01	39.4801404218289
2004-07-01	39.1932651031849
2004-10-01	38.7926397006430
2005-01-01	38.5957334877689
2005-04-01	38.1758059142218
2005-07-01	37.8061214538834
2005-10-01	37.5966269825823
2006-01-01	37.1988101665477
2006-04-01	37.0311239723777
2006-07-01	36.6210117348241
2006-10-01	36.4589814020345
2007-01-01	33.3745799657564
2007-04-01	33.2260790882063
2007-07-01	33.4171518879812
2007-10-01	33.4734865902609
2008-01-01	33.6080784786108
2008-04-01	33.9186999772307
2008-07-01	34.0401492531035
2008-10-01	34.6593528003723
2009-01-01	35.2563427668305
2009-04-01	35.5635884336677
2009-07-01	36.1814855520548
2009-10-01	36.6502636673138
2010-01-01	37.0807114002035
2010-04-01	37.2361895257823
2010-07-01	37.5523405912631
2010-10-01	37.7159077880056
2011-01-01	37.9396941233253
2011-04-01	37.9696564769367
2011-07-01	38.2415551226879
2011-10-01	37.9817108250673
2012-01-01	38.0849646797886
2012-04-01	38.4138398750270
2012-07-01	38.4149558431926
2012-10-01	38.5448893122095
2013-01-01	38.2605851271382
2013-04-01	37.9058285195798
2013-07-01	38.0048788471950
2013-10-01	37.9619023022854
2014-01-01	38.0725460630436
2014-04-01	38.4448673667522
2014-07-01	38.2087569620985
2014-10-01	38.2660864010749
2015-01-01	38.2454973161594
2015-04-01	38.1602048439899
2015-07-01	38.1858321286420
2015-10-01	38.0956839524238
2016-01-01	38.0145887220866
2016-04-01	37.5631387791800
2016-07-01	37.6768954961111
2016-10-01	37.9314767882639
2017-01-01	37.8971263178809
2017-04-01	38.2241382440008
2017-07-01	38.0817342357539
2017-10-01	37.8360341525436
2018-01-01	37.8565554523153
2018-04-01	37.7206210524546