Quarter	Percent, Seasonally Adjusted
1983-01-01	46.4809978044624
1983-04-01	45.7769501294892
1983-07-01	46.3823357621207
1983-10-01	46.4301919401311
1984-01-01	45.1010810680133
1984-04-01	45.1888716845427
1984-07-01	45.0590462288318
1984-10-01	45.2810542053370
1985-01-01	45.4544067494146
1985-04-01	46.0307823389857
1985-07-01	45.4614420636119
1985-10-01	44.7383282186864
1986-01-01	44.4579633444892
1986-04-01	44.4411581493815
1986-07-01	45.1083110634275
1986-10-01	45.3126611674228
1987-01-01	44.9238178253337
1987-04-01	44.9742929953586
1987-07-01	45.1068156456827
1987-10-01	45.8539969979354
1988-01-01	45.5872168097827
1988-04-01	45.1816247670567
1988-07-01	45.4353372780489
1988-10-01	45.2922451138492
1989-01-01	45.9162926666309
1989-04-01	45.8951611069758
1989-07-01	46.0216901296247
1989-10-01	46.6942132313210
1990-01-01	46.6978326797462
1990-04-01	47.4596904853992
1990-07-01	47.4843184322985
1990-10-01	47.6077106968878
1991-01-01	48.0440890010725
1991-04-01	48.7456064587089
1991-07-01	49.1458533284845
1991-10-01	48.6725151440412
1992-01-01	48.9693978345182
1992-04-01	47.9035459706136
1992-07-01	48.6048622787088
1992-10-01	49.0340674334468
1993-01-01	48.9492679388577
1993-04-01	48.8807759734964
1993-07-01	48.6364677988536
1993-10-01	48.4953327164039
1994-01-01	48.3670304464438
1994-04-01	48.3088526397690
1994-07-01	47.9755344648558
1994-10-01	47.9886038096423
1995-01-01	48.6749336526552
1995-04-01	48.8046539980645
1995-07-01	48.4737809793907
1995-10-01	48.2759635808420
1996-01-01	47.8840666956945
1996-04-01	48.7064482405832
1996-07-01	48.9880390314604
1996-10-01	49.2746576032680
1997-01-01	49.1820964636290
1997-04-01	49.3108084649410
1997-07-01	49.6136481714418
1997-10-01	49.9636499388995
1998-01-01	49.8925947962035
1998-04-01	49.8614825605270
1998-07-01	50.1310117665366
1998-10-01	49.8093277909880
1999-01-01	49.8231448898259
1999-04-01	50.1699510403052
1999-07-01	50.1571421094804
1999-10-01	49.8634184166399
2000-01-01	49.6356971474864
2000-04-01	49.7868004409037
2000-07-01	49.6850011776875
2000-10-01	49.7953953366772
2001-01-01	49.5478506002787
2001-04-01	49.0421754094590
2001-07-01	48.7830968849788
2001-10-01	48.9837241549973
2002-01-01	49.1617970751471
2002-04-01	48.6558077420285
2002-07-01	49.0416256570591
2002-10-01	48.8818153677361
2003-01-01	49.4565700318821
2003-04-01	49.1484271549924
2003-07-01	49.2849778798773
2003-10-01	49.8090362823825
2004-01-01	49.6305024456252
2004-04-01	50.1708950614877
2004-07-01	50.3572280294888
2004-10-01	50.4138066839427
2005-01-01	50.6050983301003
2005-04-01	50.7231141864694
2005-07-01	51.0877617586871
2005-10-01	50.7577552459656
2006-01-01	51.0660307783339
2006-04-01	51.3608668185900
2006-07-01	51.3483076820115
2006-10-01	52.1284905038391
2007-01-01	52.2305580534661
2007-04-01	52.1577535956418
2007-07-01	52.6869561260580
2007-10-01	53.2514776158218
2008-01-01	52.7881857950367
2008-04-01	53.6881637925053
2008-07-01	53.3629792948457
2008-10-01	53.1410807401208
2009-01-01	53.5117131110269
2009-04-01	53.5562239829261
2009-07-01	53.8598335297408
2009-10-01	53.6085370194125
2010-01-01	53.8858345489793
2010-04-01	53.7042016073393
2010-07-01	54.3381214411825
2010-10-01	54.2422034002457
2011-01-01	54.5158684604561
2011-04-01	54.8726400449869
2011-07-01	54.2591008915260
2011-10-01	54.4074090378218
2012-01-01	54.1876702158780
2012-04-01	53.8427918737318
2012-07-01	53.8844263877461
2012-10-01	54.4619673303618
2013-01-01	55.3747277603257
2013-04-01	55.2839370731162
2013-07-01	56.0411012452136
2013-10-01	56.6823153610496
2014-01-01	56.6051767904252
2014-04-01	57.7256794854149
2014-07-01	57.5902208748311
2014-10-01	58.1415739505956
2015-01-01	58.7100610810082
2015-04-01	59.0223026265724
2015-07-01	59.7089769645433
2015-10-01	60.0535661251146
2016-01-01	60.4573767562586
2016-04-01	60.6333779138529
2016-07-01	61.3798952455942
2016-10-01	61.7912726273142
2017-01-01	62.5995644155754
2017-04-01	63.0946800059341
2017-07-01	63.7232167597272
2017-10-01	64.0883831121975
2018-01-01	64.9459554580063
2018-04-01	65.4081429760418
2018-07-01	66.0906584804478