Quarter	Percent, Seasonally Adjusted
1998-01-01	35.1585041399072
1998-04-01	34.7453840137931
1998-07-01	34.5691811710448
1998-10-01	33.8512267557421
1999-01-01	32.6784398306912
1999-04-01	32.3592447523612
1999-07-01	32.1350094415407
1999-10-01	32.4492938321589
2000-01-01	32.7771189602258
2000-04-01	32.5230786544144
2000-07-01	32.5268157222138
2000-10-01	32.9580519171665
2001-01-01	29.8563182793656
2001-04-01	30.4505099169410
2001-07-01	31.1112259953231
2001-10-01	30.5725936787862
2002-01-01	31.1649555421641
2002-04-01	31.5521734930182
2002-07-01	31.2739938621823
2002-10-01	30.9454188579602
2003-01-01	31.4962948332973
2003-04-01	31.1415500681540
2003-07-01	30.0258000644672
2003-10-01	29.2223138159601
2004-01-01	32.8806093542344
2004-04-01	32.3564094643931
2004-07-01	31.7929810913046
2004-10-01	31.6889743452480
2005-01-01	30.8304338352170
2005-04-01	30.0659310640990
2005-07-01	29.0758127219979
2005-10-01	29.7763019080400
2006-01-01	30.4147834549924
2006-04-01	29.6157220801535
2006-07-01	29.1080704375582
2006-10-01	28.6851174010803
2007-01-01	29.1168158620425
2007-04-01	29.2049310672492
2007-07-01	29.3228149161068
2007-10-01	28.7285074820570
2008-01-01	27.9590697812823
2008-04-01	28.5006103457257
2008-07-01	28.3661692822251
2008-10-01	28.2670082315477
2009-01-01	28.0027985349943
2009-04-01	27.4175994331193
2009-07-01	27.4627048297587
2009-10-01	26.3289170792179
2010-01-01	25.5494311697935
2010-04-01	24.8600145619888
2010-07-01	23.8339455635993
2010-10-01	22.3605556353810
2011-01-01	21.2083789734695
2011-04-01	19.7088854655138
2011-07-01	18.7315699396772
2011-10-01	17.8489708747665
2012-01-01	17.3705619070922
2012-04-01	16.4653585921163
2012-07-01	15.3013168429766
2012-10-01	15.2123774663355
2013-01-01	14.7503253683536
2013-04-01	14.2990650885103
2013-07-01	14.4026954337806
2013-10-01	14.9237756391033
2014-01-01	14.6983819091958
2014-04-01	15.8080910391123
2014-07-01	16.5904993689369
2014-10-01	16.0264048803972
2015-01-01	15.9978629431966
2015-04-01	15.2643393476458
2015-07-01	14.5419614482003
2015-10-01	14.7947746581158
2016-01-01	14.4002282726200
2016-04-01	14.2597215121963
2016-07-01	14.9052268331338
2016-10-01	15.3082834772297
2017-01-01	15.7723798346306
2017-04-01	16.1026606598950
2017-07-01	16.0885905787939
2017-10-01	15.5303705628967
2018-01-01	15.7222811730237
2018-04-01	16.2285981526354