Quarter	Percent, Seasonally Adjusted
1970-01-01	52.8558894739159
1970-04-01	53.2157617259923
1970-07-01	53.0584538330781
1970-10-01	52.4354149598300
1971-01-01	52.4553074711193
1971-04-01	52.0691408293889
1971-07-01	51.7811356826101
1971-10-01	51.3798249190669
1972-01-01	51.0950214895297
1972-04-01	50.5095235236654
1972-07-01	50.8006526359933
1972-10-01	51.4677632582474
1973-01-01	52.2818171974686
1973-04-01	51.0988313283959
1973-07-01	51.1806167703060
1973-10-01	51.5766379197964
1974-01-01	50.5262624673380
1974-04-01	50.3125246042580
1974-07-01	49.4664012909779
1974-10-01	49.2390217088471
1975-01-01	48.8432513882464
1975-04-01	49.1585386832429
1975-07-01	49.2634111702175
1975-10-01	48.7299568705914
1976-01-01	49.1628404328653
1976-04-01	48.7630183477666
1976-07-01	49.4168929548197
1976-10-01	49.3995430562103
1977-01-01	49.7346974725541
1977-04-01	50.2670508487673
1977-07-01	50.3089045815309
1977-10-01	50.4876808698044
1978-01-01	50.6248491213119
1978-04-01	51.0760088112090
1978-07-01	50.9299496498154
1978-10-01	51.2822718879265
1979-01-01	51.4597967140385
1979-04-01	51.3151484383771
1979-07-01	51.4314655672945
1979-10-01	51.5294907092328
1980-01-01	51.4356027884344
1980-04-01	51.5638806413694
1980-07-01	51.9729900635176
1980-10-01	51.5185414771028
1981-01-01	51.3253508786809
1981-04-01	51.6918157585535
1981-07-01	51.7880485916291
1981-10-01	52.2424575635792
1982-01-01	52.3046834692971
1982-04-01	52.0337205165635
1982-07-01	51.8745641679809
1982-10-01	52.5529852691320
1983-01-01	53.2055573760878
1983-04-01	53.1737253045305
1983-07-01	53.2734009458089
1983-10-01	53.1059770503027
1984-01-01	52.6985609016085
1984-04-01	53.1370276120676
1984-07-01	53.4006937532188
1984-10-01	53.4903095835490
1985-01-01	53.4312475591864
1985-04-01	53.2637580767898
1985-07-01	53.3258707913210
1985-10-01	53.1698993987046
1986-01-01	53.5270787820170
1986-04-01	53.2500802410535
1986-07-01	53.3827926908533
1986-10-01	53.3276168435522
1987-01-01	53.1674666830215
1987-04-01	53.4445874176551
1987-07-01	53.6010956072865
1987-10-01	53.9318458228474
1988-01-01	53.9230142990503
1988-04-01	54.0894648074846
1988-07-01	54.1537985227171
1988-10-01	54.1816953610601
1989-01-01	54.6076228246982
1989-04-01	55.1308086941653
1989-07-01	55.2227676780424
1989-10-01	55.4311935356023
1990-01-01	55.8918956769797
1990-04-01	55.8855965891334
1990-07-01	56.1079891210876
1990-10-01	56.2204368872158
1991-01-01	56.6457653952371
1991-04-01	56.6486493438311
1991-07-01	56.9370332094377
1991-10-01	57.0675492158320
1992-01-01	57.0740423359794
1992-04-01	56.9626613989361
1992-07-01	56.9229280231200
1992-10-01	57.2661797860938
1993-01-01	56.5434498400542
1993-04-01	56.6509177721757
1993-07-01	56.7217706442827
1993-10-01	56.8118367486637
1994-01-01	56.5830393107964
1994-04-01	56.8978925427708
1994-07-01	56.4355587845314
1994-10-01	56.4882344317848
1995-01-01	56.6833245657868
1995-04-01	56.5140739517233
1995-07-01	56.4607582673198
1995-10-01	56.4214538075477
1996-01-01	56.5982314492976
1996-04-01	56.8226921552737
1996-07-01	57.0658737763853
1996-10-01	56.9393510832925
1997-01-01	57.3206404479151
1997-04-01	57.3536241431360
1997-07-01	57.7257212307649
1997-10-01	57.6736643700816
1998-01-01	57.7017319422014
1998-04-01	57.2645917997583
1998-07-01	57.2312943113166
1998-10-01	56.9206546961156
1999-01-01	56.6851178460540
1999-04-01	56.8958187648637
1999-07-01	56.8082660470465
1999-10-01	56.6999392239961
2000-01-01	56.5102851943737
2000-04-01	56.8763094936802
2000-07-01	56.8657433801304
2000-10-01	57.0521627183078
2001-01-01	57.4553328630401
2001-04-01	57.0577950678172
2001-07-01	56.7226532184542
2001-10-01	56.9468366110888
2002-01-01	56.6236866342354
2002-04-01	56.2831673031094
2002-07-01	56.5880478529174
2002-10-01	56.8652933779943
2003-01-01	56.6245442282928
2003-04-01	56.8577052622608
2003-07-01	56.9178388518518
2003-10-01	57.1582180308113
2004-01-01	57.3491516975182
2004-04-01	57.2275972699100
2004-07-01	57.7019772305840
2004-10-01	57.5649734878843
2005-01-01	57.8988368188331
2005-04-01	58.2504527542745
2005-07-01	58.3766943433956
2005-10-01	58.0728585431011
2006-01-01	58.6407490439419
2006-04-01	58.7269693108357
2006-07-01	58.9940937149826
2006-10-01	59.1589162912920
2007-01-01	59.0985837130308
2007-04-01	59.7649403139236
2007-07-01	59.5084597062430
2007-10-01	59.8987723657490
2008-01-01	59.7481807052604
2008-04-01	59.9811802221608
2008-07-01	59.7536768997804
2008-10-01	60.0244823518397
2009-01-01	59.9242902033075
2009-04-01	59.6789231052700
2009-07-01	59.9600174701671
2009-10-01	59.8794147409304
2010-01-01	60.1005451604782
2010-04-01	59.9131118095112
2010-07-01	60.4117042012912
2010-10-01	60.4023029137886
2011-01-01	60.8710512133796
2011-04-01	61.0935250851263
2011-07-01	60.8416619986106
2011-10-01	60.4989469708657
2012-01-01	60.3752510718238
2012-04-01	60.7104711154651
2012-07-01	60.8456862443462
2012-10-01	60.9598350263885
2013-01-01	62.0762930052486
2013-04-01	62.3380459859106
2013-07-01	62.6677562600155
2013-10-01	63.0324246989532
2014-01-01	63.2946735953258
2014-04-01	63.6149331907858
2014-07-01	63.8355515789800
2014-10-01	64.1928818603075
2015-01-01	64.2333238456308
2015-04-01	64.5867512773648
2015-07-01	64.8065060570936
2015-10-01	65.1736780982506
2016-01-01	65.6692953142727
2016-04-01	65.8286469156202
2016-07-01	66.3975459487572
2016-10-01	66.5875027245132
2017-01-01	66.8716241577176
2017-04-01	67.3002160062660
2017-07-01	67.7251689483639
2017-10-01	68.0450168067346
2018-01-01	68.9674672350108
2018-04-01	69.4636396977546
2018-07-01	69.7605640526982