Quarter	Percent, Seasonally Adjusted
1999-01-01	25.4686657346588
1999-04-01	25.4863477979705
1999-07-01	26.0666072076258
1999-10-01	26.0439690436017
2000-01-01	28.6031723518427
2000-04-01	29.8782134811117
2000-07-01	29.0454036456830
2000-10-01	30.5352543391006
2001-01-01	30.6876768399745
2001-04-01	31.6929493069841
2001-07-01	28.9127834970304
2001-10-01	28.3887091577776
2002-01-01	29.2530206760909
2002-04-01	29.0191357788561
2002-07-01	28.9643274250440
2002-10-01	28.0170078651629
2003-01-01	27.1398527032982
2003-04-01	27.4192498198790
2003-07-01	26.3409814171645
2003-10-01	26.6033402371621
2004-01-01	27.0841174202088
2004-04-01	29.2390593374785
2004-07-01	29.8920441999215
2004-10-01	29.9578701415105
2005-01-01	31.1102387367731
2005-04-01	31.1268408008048
2005-07-01	29.7444806113177
2005-10-01	29.9334029685910
2006-01-01	29.6304631909449
2006-04-01	29.7247018472595
2006-07-01	28.2419849874406
2006-10-01	27.1960330226463
2007-01-01	27.6214236079406
2007-04-01	27.3584921075407
2007-07-01	26.2371341759477
2007-10-01	26.3021926380001
2008-01-01	28.5992287259457
2008-04-01	27.7990930723587
2008-07-01	29.7663933190037
2008-10-01	26.9885787809304
2009-01-01	26.3249743684032
2009-04-01	27.5235554354801
2009-07-01	30.1861690173764
2009-10-01	33.5111926670883
2010-01-01	35.0040541866930
2010-04-01	39.7484992496816
2010-07-01	42.5106633590920
2010-10-01	42.2659790991175
2011-01-01	45.0331626527796
2011-04-01	46.8510979749856
2011-07-01	47.1053117460174
2011-10-01	46.9712448286218
2012-01-01	47.9752983226940
2012-04-01	47.6543326620380
2012-07-01	51.5673938958770
2012-10-01	52.6370603403076
2013-01-01	49.3687442998606
2013-04-01	46.8665396783237
2013-07-01	46.9095696741697
2013-10-01	48.2555579538096
2014-01-01	47.2537368417462
2014-04-01	45.2587066492077
2014-07-01	45.5970477431488
2014-10-01	47.5990923227184
2015-01-01	46.0684351773505
2015-04-01	44.9220201069187
2015-07-01	44.2801060558406
2015-10-01	45.1956911451794
2016-01-01	43.1811034024724
2016-04-01	43.9724423597578
2016-07-01	43.8260688867620
2016-10-01	44.2189930478645
2017-01-01	45.8971766579373
2017-04-01	45.3985505728964
2017-07-01	45.4631664350532
2017-10-01	45.5216728441180
2018-01-01	46.5307484325384
2018-04-01	45.9486102594825