Quarter	Percent, Seasonally Adjusted
1998-01-01	57.1774493176135
1998-04-01	62.4836061491387
1998-07-01	56.1719891226165
1998-10-01	54.1795266752471
1999-01-01	53.8286517621440
1999-04-01	48.8297963272966
1999-07-01	50.1841590169197
1999-10-01	50.8153816051845
2000-01-01	49.2423993166260
2000-04-01	48.1754386959182
2000-07-01	48.9280657421056
2000-10-01	49.6267432849582
2001-01-01	49.2579419149584
2001-04-01	48.8188212800636
2001-07-01	49.3801964275573
2001-10-01	49.0828379694727
2002-01-01	49.6428536174598
2002-04-01	49.1373639568404
2002-07-01	48.7993370783081
2002-10-01	49.0143568902740
2003-01-01	48.4243217600304
2003-04-01	49.3612094744450
2003-07-01	50.1584503459685
2003-10-01	52.1033396690226
2004-01-01	52.4630726518511
2004-04-01	51.0575615893999
2004-07-01	50.3792882054221
2004-10-01	50.5010813687082
2005-01-01	49.3729223006517
2005-04-01	49.8266431169372
2005-07-01	50.2570292499338
2005-10-01	48.8195609175627
2006-01-01	49.3276555087845
2006-04-01	48.9413951341508
2006-07-01	49.1051041162908
2006-10-01	48.5110412040702
2007-01-01	47.8146260326339
2007-04-01	47.8307943742453
2007-07-01	44.9755008896126
2007-10-01	45.0363118838983
2008-01-01	46.3864863172880
2008-04-01	46.3885745349118
2008-07-01	46.8576866460704
2008-10-01	46.3242472575614
2009-01-01	47.2156127395184
2009-04-01	46.9224173776340
2009-07-01	51.3661151772975
2009-10-01	49.8160023170322
2010-01-01	51.1521070548259
2010-04-01	50.8330391793305
2010-07-01	50.9020548233645
2010-10-01	49.7891959430198
2011-01-01	49.6201855711955
2011-04-01	49.0998640404876
2011-07-01	48.5124106516003
2011-10-01	50.7157751858692
2012-01-01	49.6604921529378
2012-04-01	48.2497550596255
2012-07-01	47.0466337187738
2012-10-01	46.9355238079497
2013-01-01	45.4739631306870
2013-04-01	46.6597146464649
2013-07-01	50.0991606453051
2013-10-01	46.1960682308340
2014-01-01	47.7361583597906
2014-04-01	46.4843773592701
2014-07-01	47.6972311747477
2014-10-01	47.6481514722837
2015-01-01	46.5724195980420
2015-04-01	46.6980437463754
2015-07-01	46.6289330027484
2015-10-01	46.9053108089763
2016-01-01	47.0932841224848
2016-04-01	47.6910309419189
2016-07-01	45.6847745680209
2016-10-01	46.9464912200571
2017-01-01	45.8434433997518
2017-04-01	46.6977049323134
2017-07-01	45.7853767872053
2017-10-01	45.0245412846613
2018-01-01	44.6317731045695
2018-04-01	43.6309826664983