Quarter	Percent, Seasonally Adjusted
1998-01-01	51.9413155228804
1998-04-01	56.7356154576994
1998-07-01	49.9207737337770
1998-10-01	49.9207292283033
1999-01-01	49.6585510069465
1999-04-01	44.5539206075098
1999-07-01	46.9471978992945
1999-10-01	47.5022776466541
2000-01-01	46.6605965902508
2000-04-01	45.4774893728998
2000-07-01	46.7554503963155
2000-10-01	46.7433519310116
2001-01-01	47.1514868683618
2001-04-01	45.9740003290682
2001-07-01	47.1094210829239
2001-10-01	46.5000760081899
2002-01-01	48.2307366777728
2002-04-01	46.9163669000062
2002-07-01	48.7083158165789
2002-10-01	47.7709078169302
2003-01-01	47.5474179922873
2003-04-01	48.3936090891753
2003-07-01	47.7867541467642
2003-10-01	50.8059712083466
2004-01-01	49.7781865077537
2004-04-01	49.8390385038970
2004-07-01	48.8921748439662
2004-10-01	49.3814827930041
2005-01-01	49.5612223328775
2005-04-01	49.5086485194974
2005-07-01	49.9695452243135
2005-10-01	47.3693172512386
2006-01-01	46.8129634330714
2006-04-01	48.6309028400451
2006-07-01	46.3661658069089
2006-10-01	47.8498619128333
2007-01-01	47.5380834403462
2007-04-01	46.5738743223615
2007-07-01	46.6028530331627
2007-10-01	46.2431542176671
2008-01-01	46.9786071957448
2008-04-01	44.4699959628154
2008-07-01	47.8897448071797
2008-10-01	46.8770705786482
2009-01-01	48.6274826912877
2009-04-01	48.6836911691088
2009-07-01	52.5849185703620
2009-10-01	51.1797848494480
2010-01-01	50.2699196640817
2010-04-01	50.7666906298978
2010-07-01	50.9048628384893
2010-10-01	50.3696579168110
2011-01-01	49.8837998892145
2011-04-01	48.9745543709972
2011-07-01	49.3038459117430
2011-10-01	49.7444712586628
2012-01-01	48.5716589956049
2012-04-01	49.2181955863943
2012-07-01	48.4960776070207
2012-10-01	49.0573657250094
2013-01-01	50.6335734360639
2013-04-01	48.7243843747607
2013-07-01	48.5457884896531
2013-10-01	49.0872815324406
2014-01-01	48.2905082043861
2014-04-01	49.4511943710453
2014-07-01	50.0725939277834
2014-10-01	46.1157983786823
2015-01-01	48.1408864958717
2015-04-01	48.1072515357136
2015-07-01	49.1562896378368
2015-10-01	50.2200634328562
2016-01-01	48.7639978074630
2016-04-01	48.8289782586493
2016-07-01	49.3951316753017
2016-10-01	48.0844680436538
2017-01-01	48.2984564327751
2017-04-01	48.3494694588580
2017-07-01	46.4650529535227
2017-10-01	47.6236290826674
2018-01-01	47.4006597525498
2018-04-01	48.4435357351552