Quarter	Percent, Seasonally Adjusted
1998-01-01	75.6243220553156
1998-04-01	75.4451431534704
1998-07-01	75.9464206804515
1998-10-01	75.3667952605198
1999-01-01	73.4053503957886
1999-04-01	75.1509447498770
1999-07-01	74.4514933233508
1999-10-01	74.8106756623646
2000-01-01	74.5347554483928
2000-04-01	74.1375330920368
2000-07-01	74.2319972620492
2000-10-01	75.5536205250152
2001-01-01	75.4760987031593
2001-04-01	75.9692411241059
2001-07-01	76.2553246036647
2001-10-01	76.7412109282456
2002-01-01	75.4910480815848
2002-04-01	74.6551041597046
2002-07-01	74.5529952061426
2002-10-01	74.3230214823369
2003-01-01	74.6326981743242
2003-04-01	73.7132923658310
2003-07-01	73.0481223188242
2003-10-01	72.7012242193028
2004-01-01	75.5866320051505
2004-04-01	74.6615710768150
2004-07-01	74.6560719160098
2004-10-01	73.9108056997570
2005-01-01	74.1495367411645
2005-04-01	72.9989618108483
2005-07-01	72.3402149174540
2005-10-01	71.9883455453752
2006-01-01	72.2938950620227
2006-04-01	72.0025308906251
2006-07-01	71.7011260958948
2006-10-01	71.9155476695574
2007-01-01	71.8626311977870
2007-04-01	71.9447122600168
2007-07-01	71.9473252535808
2007-10-01	71.3568883105228
2008-01-01	71.7543836480129
2008-04-01	71.1777040979752
2008-07-01	71.2621113537093
2008-10-01	71.1055128977781
2009-01-01	71.1778048821475
2009-04-01	70.7795672340344
2009-07-01	69.8396951285919
2009-10-01	70.3540890433352
2010-01-01	69.4314232872546
2010-04-01	69.1460973413952
2010-07-01	68.5542165755610
2010-10-01	68.5821254213920
2011-01-01	69.5437577339377
2011-04-01	69.2865050959123
2011-07-01	70.4637476218695
2011-10-01	71.1579641556694
2012-01-01	70.7208675666447
2012-04-01	70.6380842877836
2012-07-01	69.3432522416482
2012-10-01	69.1050910677569
2013-01-01	69.3078648542965
2013-04-01	69.1739211305640
2013-07-01	68.7945186403717
2013-10-01	68.8841266333654
2014-01-01	69.0715900290376
2014-04-01	69.8235849440568
2014-07-01	70.7028023381758
2014-10-01	70.8895209120991
2015-01-01	71.3217524204782
2015-04-01	71.1341562929507
2015-07-01	70.1117589666651
2015-10-01	69.2612512298604
2016-01-01	67.7686713901504
2016-04-01	66.8900707104370
2016-07-01	65.4310784011968
2016-10-01	65.4899210577465
2017-01-01	65.3594964393100
2017-04-01	65.6249936261181
2017-07-01	64.6962202843188
2017-10-01	64.8500732168432
2018-01-01	64.4426915437056
2018-04-01	62.8191509609259