Quarter	Percent, Seasonally Adjusted
1999-01-01	29.6153770045443
1999-04-01	30.0973669034501
1999-07-01	30.5232632954979
1999-10-01	31.2287128684961
2000-01-01	31.8245972418409
2000-04-01	32.3269671705704
2000-07-01	32.6812715021325
2000-10-01	33.0962637653629
2001-01-01	33.5508278844245
2001-04-01	33.5124807746338
2001-07-01	34.0148986097294
2001-10-01	34.2507296343622
2002-01-01	34.8805846065016
2002-04-01	35.2627858200247
2002-07-01	35.5642405798822
2002-10-01	35.8980010171290
2003-01-01	36.1475134925952
2003-04-01	36.6702420906687
2003-07-01	37.1955985817440
2003-10-01	37.5911624029614
2004-01-01	37.8997913442367
2004-04-01	38.1253513123636
2004-07-01	38.7410567903612
2004-10-01	39.2359292647528
2005-01-01	40.0198281075223
2005-04-01	40.8897763764996
2005-07-01	41.2152606142611
2005-10-01	41.5478212247687
2006-01-01	41.9519875925313
2006-04-01	42.3805765137984
2006-07-01	42.4952030930186
2006-10-01	43.0504442184914
2007-01-01	43.3940368003143
2007-04-01	43.6277104696384
2007-07-01	43.8621038751481
2007-10-01	43.9993272101972
2008-01-01	44.0695315809286
2008-04-01	44.0217447665615
2008-07-01	43.9391820741211
2008-10-01	43.5179769707409
2009-01-01	42.5486674352317
2009-04-01	42.0618070605166
2009-07-01	42.0690073358970
2009-10-01	41.8066994689521
2010-01-01	41.8748515617564
2010-04-01	41.4082014540515
2010-07-01	41.5087988602868
2010-10-01	41.6370397344574
2011-01-01	41.4579699199518
2011-04-01	41.7951266700002
2011-07-01	41.2206407630119
2011-10-01	40.7112189615468
2012-01-01	40.6309229999551
2012-04-01	40.2756704709415
2012-07-01	39.9197982840788
2012-10-01	39.4114047659250
2013-01-01	39.2635351080290
2013-04-01	39.0074777450890
2013-07-01	39.1531504209579
2013-10-01	39.1607107669069
2014-01-01	39.3866122597506
2014-04-01	39.5090001142140
2014-07-01	39.4531422962220
2014-10-01	40.0722833069499
2015-01-01	40.0881681221547
2015-04-01	40.4831688529236
2015-07-01	40.7217989581543
2015-10-01	41.1444287580305
2016-01-01	41.3440890242573
2016-04-01	41.5450110591666
2016-07-01	41.9110885635502
2016-10-01	42.0105982273917
2017-01-01	42.2249857093958
2017-04-01	42.4760395378985
2017-07-01	42.7964714510176
2017-10-01	42.9517286538569
2018-01-01	43.0167535581734
2018-04-01	43.4851701203736
2018-07-01	43.6574460569492