Quarter	Percent, Seasonally Adjusted
1999-01-01	35.4242380403764
1999-04-01	36.0361373364445
1999-07-01	36.4190245141585
1999-10-01	37.0269450456884
2000-01-01	37.3592488567918
2000-04-01	37.8538683987139
2000-07-01	38.5057515338407
2000-10-01	39.1029240091135
2001-01-01	39.6670007167343
2001-04-01	39.9190979907779
2001-07-01	40.4817244161630
2001-10-01	40.7248877542842
2002-01-01	40.4598548168948
2002-04-01	40.5992956316612
2002-07-01	39.6664484115198
2002-10-01	39.5295006024680
2003-01-01	39.7194502358846
2003-04-01	40.1310803503987
2003-07-01	40.2529909451514
2003-10-01	40.6482754293222
2004-01-01	40.8295447253292
2004-04-01	40.4601855696754
2004-07-01	40.8524833527869
2004-10-01	41.6461389281812
2005-01-01	43.0876212402797
2005-04-01	43.4597891414300
2005-07-01	44.4160284251191
2005-10-01	44.0615653867707
2006-01-01	43.5270680912082
2006-04-01	44.2239213169324
2006-07-01	44.7604521283468
2006-10-01	44.9436635878309
2007-01-01	45.1611781100863
2007-04-01	44.9659555262216
2007-07-01	43.7713740306259
2007-10-01	42.9799010775769
2008-01-01	42.3009165345682
2008-04-01	40.3683037347892
2008-07-01	38.9454376899799
2008-10-01	35.6522401433238
2009-01-01	32.4328299478782
2009-04-01	29.6539224674178
2009-07-01	27.9831775288630
2009-10-01	27.3498865419385
2010-01-01	26.6041769841588
2010-04-01	26.3660517809424
2010-07-01	25.0368437971760
2010-10-01	24.3604883767148
2011-01-01	23.4844440999599
2011-04-01	22.3703079144501
2011-07-01	21.7756068213293
2011-10-01	20.6156173151966
2012-01-01	19.4895300779768
2012-04-01	18.6959830627884
2012-07-01	18.3620804682652
2012-10-01	17.4823815714459
2013-01-01	17.2576238175382
2013-04-01	17.4676642507633
2013-07-01	17.3027181102228
2013-10-01	17.2925704457999
2014-01-01	17.3632141711721
2014-04-01	17.3984171223965
2014-07-01	17.1465083353654
2014-10-01	17.6689278652392
2015-01-01	17.8928731360529
2015-04-01	18.1992591761680
2015-07-01	18.8452293672735
2015-10-01	19.3600984704558
2016-01-01	19.4993338731862
2016-04-01	19.2762423270209
2016-07-01	19.3125675085027
2016-10-01	19.6357142278910
2017-01-01	20.3209180516842
2017-04-01	20.6560405344285
2017-07-01	22.1739681879081
2017-10-01	21.6906758866537
2018-01-01	21.9882078217220
2018-04-01	22.8270583394802
2018-07-01	23.0064813401276