Quarter	Percent, Seasonally Adjusted
1960-01-01	67.7606872781522
1960-04-01	68.0422412467320
1960-07-01	68.5910230820411
1960-10-01	68.3944696699148
1961-01-01	68.6029374396504
1961-04-01	68.0174468732566
1961-07-01	68.0322906155398
1961-10-01	68.1613000300933
1962-01-01	67.8902281103696
1962-04-01	67.6429775002478
1962-07-01	67.3934442366375
1962-10-01	66.9893419380072
1963-01-01	66.2130637636081
1963-04-01	66.3437906606910
1963-07-01	66.3025773689758
1963-10-01	66.1603656794591
1964-01-01	65.8986611155793
1964-04-01	65.5305164319249
1964-07-01	65.1311490712219
1964-10-01	65.1108842906189
1965-01-01	65.2069586082784
1965-04-01	64.7296243636197
1965-07-01	64.9176438381165
1965-10-01	64.9073401162791
1966-01-01	65.1665085174642
1966-04-01	64.9763991908294
1966-07-01	64.9270432369528
1966-10-01	64.9273035411649
1967-01-01	64.9044868947135
1967-04-01	65.4091110128262
1967-07-01	65.2436338003348
1967-10-01	65.0600824489080
1968-01-01	65.0439190665560
1968-04-01	65.2486284072106
1968-07-01	65.2768136063867
1968-10-01	65.3521857569075
1969-01-01	64.8653307476837
1969-04-01	64.8582474226804
1969-07-01	64.9394030234251
1969-10-01	64.8055662270030
1970-01-01	64.7621476852442
1970-04-01	64.7462509531475
1970-07-01	64.7939124920736
1970-10-01	64.4389195566980
1971-01-01	64.6739815865809
1971-04-01	64.4071344833361
1971-07-01	64.1278462502611
1971-10-01	63.9681679930003
1972-01-01	63.7546236648518
1972-04-01	63.4766757809264
1972-07-01	63.5427352180871
1972-10-01	63.6954389406572
1973-01-01	64.2842606536692
1973-04-01	63.6559227084517
1973-07-01	63.8581560283688
1973-10-01	64.1281512605042
1974-01-01	63.3562608101042
1974-04-01	63.2397754611067
1974-07-01	62.7031787973416
1974-10-01	62.5234652713983
1975-01-01	62.0264247055078
1975-04-01	62.0941204456250
1975-07-01	62.1293587412035
1975-10-01	61.9011976047904
1976-01-01	62.0775035371797
1976-04-01	61.6321893120200
1976-07-01	61.9289538473563
1976-10-01	61.8874985381827
1977-01-01	61.9547469092606
1977-04-01	62.0521172638436
1977-07-01	62.1157638325020
1977-10-01	62.0845222487854
1978-01-01	62.0748037555795
1978-04-01	62.3570935318039
1978-07-01	61.9945679201255
1978-10-01	62.2052651659672
1979-01-01	62.2375228241022
1979-04-01	62.2969485349932
1979-07-01	62.3717390481239
1979-10-01	62.3051666226365
1980-01-01	62.1819003162174
1980-04-01	62.1746305603481
1980-07-01	62.4050869646531
1980-10-01	62.0885061327965
1981-01-01	62.1341168594488
1981-04-01	62.0539858166562
1981-07-01	62.1145864215832
1981-10-01	62.1522639834270
1982-01-01	62.1583742116328
1982-04-01	62.0594612472897
1982-07-01	61.8306351183064
1982-10-01	62.2470596829571
1983-01-01	62.4585926977540
1983-04-01	62.4328054627343
1983-07-01	62.3054087321700
1983-10-01	62.2202166064982
1984-01-01	61.8723434911029
1984-04-01	62.0042353110082
1984-07-01	62.0647700840938
1984-10-01	62.0709341325912
1985-01-01	61.9588032302821
1985-04-01	61.7345672446194
1985-07-01	61.6829371816638
1985-10-01	61.3847780126850
1986-01-01	61.5697980684811
1986-04-01	61.3923163208076
1986-07-01	61.3994067352992
1986-10-01	61.2555242370463
1987-01-01	61.0460280049910
1987-04-01	61.0380192686212
1987-07-01	61.1482067873615
1987-10-01	61.3138936535163
1988-01-01	61.2360702809872
1988-04-01	61.3558975755925
1988-07-01	61.3602391629297
1988-10-01	61.3577907134155
1989-01-01	61.4841824504541
1989-04-01	61.7450116087352
1989-07-01	61.8413996514278
1989-10-01	61.9092185306504
1990-01-01	62.0986295888767
1990-04-01	62.1738407844441
1990-07-01	62.2882339289858
1990-10-01	62.3838958119856
1991-01-01	62.5988924050633
1991-04-01	62.6831832818558
1991-07-01	62.7732441910006
1991-10-01	62.8132155708211
1992-01-01	62.9356721332855
1992-04-01	62.6761709468476
1992-07-01	62.5819432725385
1992-10-01	62.7796302890997
1993-01-01	62.3603126413022
1993-04-01	62.2828784119107
1993-07-01	62.2371551668703
1993-10-01	62.2649983958935
1994-01-01	61.9944278989336
1994-04-01	62.0387542367462
1994-07-01	61.6958131222875
1994-10-01	61.6399082568807
1995-01-01	61.6260576372543
1995-04-01	61.4939973321476
1995-07-01	61.5609137055838
1995-10-01	61.2511080157022
1996-01-01	61.2313338395343
1996-04-01	61.3504295098535
1996-07-01	61.6107467204844
1996-10-01	61.4534462671998
1997-01-01	61.6513991717907
1997-04-01	61.7099906044472
1997-07-01	61.5615615615616
1997-10-01	61.3508618536098
1998-01-01	61.2351144086290
1998-04-01	60.9207208889719
1998-07-01	60.6083201292447
1998-10-01	60.3600807077448
1999-01-01	60.1234031998016
1999-04-01	60.0309837335399
1999-07-01	59.9882454837912
1999-10-01	59.8906192065258
2000-01-01	59.5273355547328
2000-04-01	59.5328341191334
2000-07-01	59.5079746289796
2000-10-01	59.6643305053486
2001-01-01	59.4871794871795
2001-04-01	59.0334846068932
2001-07-01	58.7049742710120
2001-10-01	58.5738747553816
2002-01-01	58.3302774721917
2002-04-01	57.8960229702486
2002-07-01	57.8830134561987
2002-10-01	57.8348534301315
2003-01-01	57.7177525075455
2003-04-01	57.7356307842182
2003-07-01	57.6411909613454
2003-10-01	57.6268093905851
2004-01-01	57.6729062841862
2004-04-01	57.6523797960175
2004-07-01	57.7077259475219
2004-10-01	57.5885405602258
2005-01-01	57.6776072316933
2005-04-01	57.8182810699339
2005-07-01	57.9580580641251
2005-10-01	57.7767681356959
2006-01-01	57.8926657989527
2006-04-01	57.8452136028077
2006-07-01	58.0226757369614
2006-10-01	58.1208459214502
2007-01-01	57.9981290926099
2007-04-01	58.2484172444980
2007-07-01	58.0862858520125
2007-10-01	58.1644635813435
2008-01-01	57.9137448460589
2008-04-01	58.0133606162735
2008-07-01	57.7396168536284
2008-10-01	57.7214504780805
2009-01-01	57.4069620633680
2009-04-01	56.8668689721480
2009-07-01	56.7477477477478
2009-10-01	56.6388421811194
2010-01-01	56.7837082870273
2010-04-01	56.5960129698571
2010-07-01	56.7926057077694
2010-10-01	56.7022680907236
2011-01-01	56.7796101949026
2011-04-01	56.5235639764960
2011-07-01	56.5675359361402
2011-10-01	56.6392655706228
2012-01-01	56.4918701625968
2012-04-01	56.4876789626917
2012-07-01	56.5504410970413
2012-10-01	56.5918232574894
2013-01-01	56.7863791964446
2013-04-01	56.9069564956316
2013-07-01	56.9584534101825
2013-10-01	57.2616474543708
2014-01-01	57.2166341390182
2014-04-01	57.3950639524410
2014-07-01	57.4143002941706
2014-10-01	57.4949713290702
2015-01-01	57.5957727873184
2015-04-01	57.5664805810673
2015-07-01	57.6609029779058
2015-10-01	57.7672380151893
2016-01-01	58.0166876763311
2016-04-01	58.0839761097272
2016-07-01	58.3428399879916
2016-10-01	58.4256507250293
2017-01-01	58.5339496908207
2017-04-01	58.7730098195250
2017-07-01	58.9743589743590
2017-10-01	59.0203321620566
2018-01-01	59.8846465799513
2018-04-01	60.0775077357527
2018-07-01	60.0084167493312