Quarter	Percent, Seasonally Adjusted
1998-01-01	33.5255700156746
1998-04-01	33.9371064816135
1998-07-01	33.6180631586169
1998-10-01	34.2499108448346
1999-01-01	33.9284595508277
1999-04-01	33.0474053612972
1999-07-01	32.1080684685422
1999-10-01	32.3195149867714
2000-01-01	31.7748701278696
2000-04-01	31.6191407655576
2000-07-01	31.4312812616053
2000-10-01	29.6267198748676
2001-01-01	28.6613804454719
2001-04-01	28.1550698532704
2001-07-01	28.4581466561116
2001-10-01	27.5179342095316
2002-01-01	27.6082120486140
2002-04-01	27.4462034120292
2002-07-01	27.2655921366545
2002-10-01	26.6010076466646
2003-01-01	27.7055777946716
2003-04-01	27.1517301275977
2003-07-01	27.0274982670448
2003-10-01	26.3536299642513
2004-01-01	22.9544551234622
2004-04-01	24.7600278127030
2004-07-01	22.7351069747725
2004-10-01	23.5492727430306
2005-01-01	24.5443479347031
2005-04-01	23.5352891440602
2005-07-01	25.0385532541000
2005-10-01	23.3424800699578
2006-01-01	23.3609915109736
2006-04-01	21.6348114142268
2006-07-01	20.7721484401488
2006-10-01	21.1772822845931
2007-01-01	19.7393845067215
2007-04-01	19.5191982778344
2007-07-01	20.8000300511067
2007-10-01	21.3640008531682
2008-01-01	19.9313074756531
2008-04-01	21.1859791838568
2008-07-01	21.7082476706540
2008-10-01	22.0047927490061
2009-01-01	24.5017100699853
2009-04-01	24.6627864725028
2009-07-01	25.8068616449522
2009-10-01	26.4075346301865
2010-01-01	27.1926899382626
2010-04-01	28.7072191578060
2010-07-01	27.5802757145510
2010-10-01	28.1369405841856
2011-01-01	27.8395746702002
2011-04-01	28.4117275875219
2011-07-01	29.4065625934566
2011-10-01	30.9332855869137
2012-01-01	33.6580324416799
2012-04-01	35.1206728959331
2012-07-01	35.1149174380167
2012-10-01	37.4256929019935
2013-01-01	39.4866944600374
2013-04-01	38.3774373616316
2013-07-01	40.5843021170902
2013-10-01	41.7439348259736
2014-01-01	43.3597228405908
2014-04-01	42.6566522433528
2014-07-01	42.9128394135491
2014-10-01	41.7723716768390
2015-01-01	42.1303080775913
2015-04-01	42.0864865873606
2015-07-01	38.6711869395819
2015-10-01	38.4088741007038
2016-01-01	38.0879052877501
2016-04-01	36.7735404704528
2016-07-01	37.5140585480214
2016-10-01	38.7040514211769
2017-01-01	35.4069805261708
2017-04-01	35.3458492153995
2017-07-01	35.2740872880831
2017-10-01	32.9266801327569
2018-01-01	32.1761408981787
2018-04-01	32.7417394602830