Quarter	Percent, Seasonally Adjusted
1999-01-01	32.1946157376483
1999-04-01	31.3322551095141
1999-07-01	30.4193953426497
1999-10-01	29.8596704952692
2000-01-01	29.4379343106453
2000-04-01	28.5443423563037
2000-07-01	29.1226678161745
2000-10-01	28.8803663759293
2001-01-01	27.8639092801071
2001-04-01	27.9498269144480
2001-07-01	27.9165762977738
2001-10-01	27.0807126867147
2002-01-01	26.9806829738005
2002-04-01	26.8753595290938
2002-07-01	27.0297856033566
2002-10-01	27.1840557643277
2003-01-01	27.5810740089349
2003-04-01	27.5205302473172
2003-07-01	27.1885126006660
2003-10-01	27.1205361956875
2004-01-01	26.5843557530816
2004-04-01	26.5436645618412
2004-07-01	26.3110093142614
2004-10-01	25.7728694467671
2005-01-01	25.7341247904829
2005-04-01	26.0407311297754
2005-07-01	25.1809105464893
2005-10-01	25.5813952421144
2006-01-01	25.4132243622037
2006-04-01	25.9855301386032
2006-07-01	25.8965384899777
2006-10-01	26.4238542849082
2007-01-01	27.3259652189471
2007-04-01	27.6800239409171
2007-07-01	27.5693947360307
2007-10-01	27.7629023936645
2008-01-01	27.6021756413392
2008-04-01	26.2416608894613
2008-07-01	25.7601726371904
2008-10-01	25.3064157147666
2009-01-01	23.8461923759901
2009-04-01	22.6907163061254
2009-07-01	22.8110056936081
2009-10-01	21.9590966128505
2010-01-01	20.4998931361051
2010-04-01	20.6394741194245
2010-07-01	20.7583076740027
2010-10-01	20.6830969064119
2011-01-01	20.3314753966941
2011-04-01	20.5900508304115
2011-07-01	19.5383733003944
2011-10-01	19.6142393573891
2012-01-01	20.0212201339942
2012-04-01	20.1060780724803
2012-07-01	20.4771492775505
2012-10-01	19.8606619203786
2013-01-01	20.7289058248635
2013-04-01	20.6841633120048
2013-07-01	20.4438194392610
2013-10-01	19.7784451930130
2014-01-01	20.8924248934476
2014-04-01	21.2753028767121
2014-07-01	22.1049841551339
2014-10-01	22.8685462907796
2015-01-01	23.4704944667523
2015-04-01	22.8787836705498
2015-07-01	23.4499920218731
2015-10-01	23.5244002584129
2016-01-01	23.8358129361325
2016-04-01	24.3505806051244
2016-07-01	25.8356291154516
2016-10-01	26.8600369167547
2017-01-01	27.1506961087434
2017-04-01	27.1081307908214
2017-07-01	26.4540470510882
2017-10-01	26.8874940871793
2018-01-01	26.5335822210416
2018-04-01	27.7092298056183