Quarter	Percent, Seasonally Adjusted
1986-01-01	63.0763810650337
1986-04-01	63.0706798868501
1986-07-01	63.2306623520570
1986-10-01	63.1977379948545
1987-01-01	63.4401035373746
1987-04-01	63.8353617175672
1987-07-01	63.4709956459870
1987-10-01	63.8274033390272
1988-01-01	63.2321141187688
1988-04-01	63.1577325438702
1988-07-01	62.8390090853824
1988-10-01	62.4046957384328
1989-01-01	61.8170351366753
1989-04-01	61.3470982652261
1989-07-01	61.5546636093025
1989-10-01	61.9741563231787
1990-01-01	62.3520399254809
1990-04-01	63.2972990173472
1990-07-01	63.0524885978120
1990-10-01	63.2192141676734
1991-01-01	63.6117111423802
1991-04-01	63.7098645642217
1991-07-01	63.5155445901554
1991-10-01	62.9624985394490
1992-01-01	63.2605839235719
1992-04-01	63.4094752691322
1992-07-01	62.8791696033572
1992-10-01	63.6694227578724
1993-01-01	62.9027083102498
1993-04-01	63.1733108694038
1993-07-01	63.4908214447740
1993-10-01	63.6662274039588
1994-01-01	64.4783441184021
1994-04-01	64.1172113992535
1994-07-01	64.3737245618128
1994-10-01	65.2783452557926
1995-01-01	64.8815600499264
1995-04-01	65.5127264108593
1995-07-01	65.8260866903967
1995-10-01	66.1497352565189
1996-01-01	66.5590359842943
1996-04-01	67.4278919380622
1996-07-01	67.9900957811628
1996-10-01	66.3865580291566
1997-01-01	67.0080265014545
1997-04-01	67.0711845247160
1997-07-01	67.1578452352045
1997-10-01	66.5051744804711
1998-01-01	66.7682888979232
1998-04-01	66.7413922863891
1998-07-01	66.7502386047041
1998-10-01	66.7327333059252
1999-01-01	66.9900797789621
1999-04-01	67.0747112846792
1999-07-01	67.0505477629143
1999-10-01	67.1143265744119
2000-01-01	67.0841810942987
2000-04-01	66.6540153725446
2000-07-01	67.3504607549115
2000-10-01	67.6338708827389
2001-01-01	67.5393208484928
2001-04-01	68.2092643885590
2001-07-01	67.9569540158596
2001-10-01	68.9040475889490
2002-01-01	68.8018408071630
2002-04-01	68.9605602723928
2002-07-01	68.7555436757303
2002-10-01	68.7041747131506
2003-01-01	68.5126693461026
2003-04-01	68.6466498872689
2003-07-01	69.4017918622916
2003-10-01	69.3260126137493
2004-01-01	69.1831713175696
2004-04-01	68.3181208629514
2004-07-01	69.1595926637554
2004-10-01	70.1604952863728
2005-01-01	69.7510175029582
2005-04-01	69.9095690753202
2005-07-01	71.0572170265008
2005-10-01	70.7978740639969
2006-01-01	71.3703955354869
2006-04-01	71.3683104757335
2006-07-01	70.9718277916442
2006-10-01	70.1958275451090
2007-01-01	71.6367697117855
2007-04-01	71.7155634211335
2007-07-01	70.8931031067839
2007-10-01	71.4885248834554
2008-01-01	70.4410786877921
2008-04-01	71.6295490369888
2008-07-01	72.0888595586740
2008-10-01	72.2314699018371
2009-01-01	71.5181437662552
2009-04-01	71.6506543927620
2009-07-01	71.4456258443882
2009-10-01	71.4644509726438
2010-01-01	71.3197513572228
2010-04-01	71.2842824983834
2010-07-01	71.2083301254876
2010-10-01	71.1001386364245
2011-01-01	71.6740265482907
2011-04-01	71.7608440029476
2011-07-01	71.5735160067052
2011-10-01	71.5578187563565
2012-01-01	71.9358173086181
2012-04-01	72.3113317572111
2012-07-01	72.3217279005980
2012-10-01	70.6658955195378
2013-01-01	72.0123105202939
2013-04-01	72.2107770327349
2013-07-01	72.7791156655378
2013-10-01	73.1072221554714
2014-01-01	73.5290889805840
2014-04-01	72.8841946753829
2014-07-01	73.7854402228526
2014-10-01	74.6385770509087
2015-01-01	74.2466557640233
2015-04-01	74.0579954175756
2015-07-01	73.2787693766874
2015-10-01	73.1268487188067
2016-01-01	74.0180335240346
2016-04-01	74.9065114920398
2016-07-01	74.9004331072853
2016-10-01	75.8622282949017
2017-01-01	76.0478096052383
2017-04-01	75.1657937700192
2017-07-01	76.6754830421995
2017-10-01	76.7487683602947
2018-01-01	76.7651709322536
2018-04-01	76.8223073639942
2018-07-01	77.0081850813743