Quarter	Percent, Seasonally Adjusted
1986-01-01	75.6493816836666
1986-04-01	75.4653946543742
1986-07-01	75.3049237261982
1986-10-01	74.9478941759029
1987-01-01	75.3247153827865
1987-04-01	75.3004359428076
1987-07-01	75.1655651937759
1987-10-01	74.9386862485028
1988-01-01	74.2416095431938
1988-04-01	74.0123402807338
1988-07-01	73.4575374611821
1988-10-01	73.2442574812615
1989-01-01	72.8780208904122
1989-04-01	72.3910093073644
1989-07-01	72.3492331499284
1989-10-01	72.4027774014435
1990-01-01	72.5586886606030
1990-04-01	73.2540391232329
1990-07-01	72.9494432273625
1990-10-01	73.1494322401202
1991-01-01	73.2059620787393
1991-04-01	73.2723632016276
1991-07-01	73.2094303665543
1991-10-01	72.7348914391907
1992-01-01	73.0167199055711
1992-04-01	72.9354143101467
1992-07-01	72.4519240343206
1992-10-01	72.7327834424890
1993-01-01	72.4960855909634
1993-04-01	72.8690406238171
1993-07-01	72.8293879020426
1993-10-01	73.1643895418977
1994-01-01	73.4965379222929
1994-04-01	73.5991025060319
1994-07-01	73.7183124237802
1994-10-01	74.1049872108839
1995-01-01	74.0354382643457
1995-04-01	74.4049614890653
1995-07-01	74.6821621509346
1995-10-01	74.9649244670214
1996-01-01	75.1156215739496
1996-04-01	75.4882573369605
1996-07-01	76.0226983527068
1996-10-01	75.0472506697888
1997-01-01	75.2469192971711
1997-04-01	75.4246528176092
1997-07-01	75.5058403353041
1997-10-01	75.2037923652238
1998-01-01	75.2379294418312
1998-04-01	75.0252944445302
1998-07-01	74.8263574276417
1998-10-01	74.6382318065844
1999-01-01	74.9107006476890
1999-04-01	74.7436160312270
1999-07-01	74.8558790867943
1999-10-01	75.0514428820654
2000-01-01	74.9190133263594
2000-04-01	74.4826394588136
2000-07-01	75.1557478974702
2000-10-01	75.4338386064894
2001-01-01	75.2140122048045
2001-04-01	75.4229686098921
2001-07-01	75.4901333258626
2001-10-01	76.1036075114877
2002-01-01	76.5104049784331
2002-04-01	76.1485755201051
2002-07-01	76.1689315451318
2002-10-01	75.9100922292611
2003-01-01	75.7446671653691
2003-04-01	75.5536427933654
2003-07-01	76.0714634890915
2003-10-01	75.9191071341472
2004-01-01	75.8964542212940
2004-04-01	75.8106853606665
2004-07-01	76.2999945433307
2004-10-01	77.1286748162358
2005-01-01	76.8565407512231
2005-04-01	76.7239345004038
2005-07-01	77.6320008740636
2005-10-01	77.6361863106482
2006-01-01	78.0950435318391
2006-04-01	77.9867380621654
2006-07-01	77.8036825700757
2006-10-01	77.3682692218601
2007-01-01	78.1679179867071
2007-04-01	78.0379820301720
2007-07-01	77.8372770596744
2007-10-01	77.9712287773790
2008-01-01	76.9275629550858
2008-04-01	77.9639576429549
2008-07-01	78.0412265414931
2008-10-01	78.2652153129859
2009-01-01	77.4027293153146
2009-04-01	77.7921563012901
2009-07-01	77.2028025709709
2009-10-01	77.3543526582553
2010-01-01	76.9933810789183
2010-04-01	77.2316516285590
2010-07-01	77.2479804543969
2010-10-01	76.9102084637987
2011-01-01	77.3266614418114
2011-04-01	77.2953873973898
2011-07-01	77.3122143876624
2011-10-01	77.2386155405287
2012-01-01	77.6632453470319
2012-04-01	77.4309124404590
2012-07-01	77.3645082757293
2012-10-01	75.9794427926220
2013-01-01	76.8287230283529
2013-04-01	77.2597708493716
2013-07-01	77.7968301080078
2013-10-01	78.0700709117556
2014-01-01	78.4871529962360
2014-04-01	78.2338148887128
2014-07-01	78.5932367287479
2014-10-01	79.2448408707871
2015-01-01	79.3197761541221
2015-04-01	78.9845825200627
2015-07-01	78.2641619394270
2015-10-01	78.1789928656631
2016-01-01	78.9347339736267
2016-04-01	79.7562586615207
2016-07-01	80.0075682095457
2016-10-01	80.6847499795366
2017-01-01	80.8933444106343
2017-04-01	80.1742917751949
2017-07-01	81.1643747271174
2017-10-01	81.2445743839538
2018-01-01	81.2284075964781
2018-04-01	81.2876622609854
2018-07-01	81.3451410492724