Quarter	Percent, Seasonally Adjusted
1999-01-01	29.2373438267711
1999-04-01	30.0964408576334
1999-07-01	30.1256569693442
1999-10-01	31.8250891641319
2000-01-01	28.2439920442741
2000-04-01	31.3589319377593
2000-07-01	35.7747275466823
2000-10-01	33.5272486106806
2001-01-01	34.5721014531442
2001-04-01	35.1574214489223
2001-07-01	32.2573992333152
2001-10-01	34.8781954557885
2002-01-01	34.4577668360348
2002-04-01	33.1562917789348
2002-07-01	34.4987146392677
2002-10-01	32.3331906986356
2003-01-01	39.1757844937548
2003-04-01	36.6679426069675
2003-07-01	34.1773751108268
2003-10-01	36.0105389836804
2004-01-01	34.5248867933647
2004-04-01	36.3454332383323
2004-07-01	33.8919102906988
2004-10-01	31.3146856580283
2005-01-01	35.2647727355741
2005-04-01	36.4547315486076
2005-07-01	33.3311703989761
2005-10-01	30.1036099619508
2006-01-01	31.8862152595010
2006-04-01	30.6256691765146
2006-07-01	29.7914069197557
2006-10-01	30.4348012085422
2007-01-01	28.9484468796975
2007-04-01	29.3981868014342
2007-07-01	32.1160183229861
2007-10-01	32.9547993851485
2008-01-01	31.4250533447462
2008-04-01	27.8471527971756
2008-07-01	27.9108789517861
2008-10-01	26.9852119764633
2009-01-01	28.9882703022238
2009-04-01	29.5067993397640
2009-07-01	30.3690732649862
2009-10-01	30.9372816189867
2010-01-01	31.7727953693902
2010-04-01	30.9102216431945
2010-07-01	32.9270514411201
2010-10-01	34.6595089681629
2011-01-01	31.7142068003650
2011-04-01	31.6471332697385
2011-07-01	32.9373439635640
2011-10-01	35.3448624522666
2012-01-01	35.3542179584944
2012-04-01	34.3989313745145
2012-07-01	36.8460456057212
2012-10-01	37.3223943422110
2013-01-01	36.7630112865371
2013-04-01	38.0179737627028
2013-07-01	37.1067031923776
2013-10-01	38.4338165216110
2014-01-01	39.3869712677273
2014-04-01	40.1510204771431
2014-07-01	37.4633946741730
2014-10-01	35.0381335280498
2015-01-01	36.4329262503118
2015-04-01	36.9328932744489
2015-07-01	38.8336690067286
2015-10-01	37.7924900216721
2016-01-01	31.5206139200530
2016-04-01	31.8416547706777
2016-07-01	33.6122609250932
2016-10-01	33.6667781568863
2017-01-01	35.4517034987728
2017-04-01	36.7517086365327
2017-07-01	35.6481071967664
2017-10-01	35.7893198702980
2018-01-01	34.9175011848995
2018-04-01	34.9705817335500