Quarter	Percent, Seasonally Adjusted
1999-01-01	33.1716050947132
1999-04-01	34.0094608997129
1999-07-01	36.8897117547522
1999-10-01	37.1769628526445
2000-01-01	38.7091271873982
2000-04-01	40.2716497634816
2000-07-01	39.7279675393509
2000-10-01	40.0733105818324
2001-01-01	42.4178009539429
2001-04-01	42.6792472554339
2001-07-01	41.3816773668093
2001-10-01	41.8184105767963
2002-01-01	41.3076615305166
2002-04-01	39.4181220398232
2002-07-01	39.3081335325639
2002-10-01	37.8133073504234
2003-01-01	35.8346033155809
2003-04-01	35.1529728040858
2003-07-01	34.4162277352431
2003-10-01	33.8010514596477
2004-01-01	35.6373848671288
2004-04-01	35.1011985664991
2004-07-01	34.1207586432042
2004-10-01	34.0865289569565
2005-01-01	32.2293265650867
2005-04-01	30.5931490846079
2005-07-01	30.7776358182556
2005-10-01	30.4387217117330
2006-01-01	28.9110974415373
2006-04-01	26.7440752720206
2006-07-01	26.1832015571572
2006-10-01	23.6213905899867
2007-01-01	21.5212103577028
2007-04-01	20.7543415874509
2007-07-01	20.4802206297471
2007-10-01	19.0122373753148
2008-01-01	18.3576390913246
2008-04-01	19.2438332341765
2008-07-01	17.9808388614324
2008-10-01	18.4253015563702
2009-01-01	22.1721449014858
2009-04-01	26.9280289832055
2009-07-01	29.0933649864836
2009-10-01	32.9079887084535
2010-01-01	35.1347663530114
2010-04-01	34.0510206150903
2010-07-01	35.1606810927834
2010-10-01	34.1939917783148
2011-01-01	33.3849938116751
2011-04-01	32.8642175753316
2011-07-01	33.0897318992130
2011-10-01	33.4531146353795
2012-01-01	34.1743392488071
2012-04-01	34.1328270709935
2012-07-01	34.8987953520352
2012-10-01	36.6522124850382
2013-01-01	36.8170793304854
2013-04-01	34.9707811703328
2013-07-01	33.6976661599145
2013-10-01	34.1459590278763
2014-01-01	31.0728543043562
2014-04-01	29.2062651257502
2014-07-01	29.4411612096217
2014-10-01	28.1130751947318
2015-01-01	26.4669808499275
2015-04-01	26.7193303635979
2015-07-01	26.0814871646592
2015-10-01	23.8553786271122
2016-01-01	22.2960945489161
2016-04-01	19.4669027790125
2016-07-01	19.0777335703195
2016-10-01	18.2874960854023
2017-01-01	17.4104362915414
2017-04-01	19.0465362824627
2017-07-01	18.5698527071047
2017-10-01	17.5263592807475
2018-01-01	16.8895339899335
2018-04-01	13.8260423686770