Quarter	Percent, Seasonally Adjusted
1970-01-01	35.3944970741333
1970-04-01	35.6131515549588
1970-07-01	35.6404361256297
1970-10-01	36.5510905757126
1971-01-01	35.6846663957176
1971-04-01	35.2253127370596
1971-07-01	35.4579849316751
1971-10-01	35.3924661465877
1972-01-01	36.8819273036493
1972-04-01	36.2831226766085
1972-07-01	36.5664702891181
1972-10-01	37.1457346631669
1973-01-01	35.8988503827961
1973-04-01	36.8823285781903
1973-07-01	36.5187987248022
1973-10-01	35.5911669340495
1974-01-01	36.3227642694332
1974-04-01	37.0078659436782
1974-07-01	37.2502684681075
1974-10-01	37.2338740252283
1975-01-01	37.2140444433413
1975-04-01	37.1772148321999
1975-07-01	37.0072978959030
1975-10-01	37.3112671740819
1976-01-01	36.9896063977579
1976-04-01	37.1948069161088
1976-07-01	36.8103141817374
1976-10-01	37.4537652286079
1977-01-01	37.8474493623293
1977-04-01	37.6590451399854
1977-07-01	37.6151072556536
1977-10-01	37.1527199247387
1978-01-01	37.2889734152882
1978-04-01	36.9232821690597
1978-07-01	37.1944798579099
1978-10-01	36.6794867832784
1979-01-01	36.9622901297761
1979-04-01	36.7396217906486
1979-07-01	36.8666928006375
1979-10-01	36.5855007296195
1980-01-01	36.6483117963959
1980-04-01	36.3457391373893
1980-07-01	36.5123396657227
1980-10-01	37.2124451916120
1981-01-01	36.9620104665908
1981-04-01	37.0921533147608
1981-07-01	37.0854271852979
1981-10-01	37.1052581997276
1982-01-01	36.8318720155604
1982-04-01	36.6454905284850
1982-07-01	36.7686842036896
1982-10-01	36.7895876408006
1983-01-01	36.1654622908969
1983-04-01	36.2136499844250
1983-07-01	35.9780300391028
1983-10-01	36.0543752503232
1984-01-01	36.6931881597105
1984-04-01	36.9381235990713
1984-07-01	36.9742894366170
1984-10-01	36.9107412791438
1985-01-01	36.7948931730893
1985-04-01	36.3418602972262
1985-07-01	36.9707531570468
1985-10-01	37.2145915955473
1986-01-01	37.2575101720500
1986-04-01	37.3313307948943
1986-07-01	36.8239063074009
1986-10-01	36.7612275882116
1987-01-01	37.0342419662768
1987-04-01	36.8148878220781
1987-07-01	36.7530339029716
1987-10-01	36.5207704380814
1988-01-01	36.6187226957724
1988-04-01	36.9806840477747
1988-07-01	36.6416503287891
1988-10-01	36.8712104343286
1989-01-01	36.3861390207401
1989-04-01	36.3025843612204
1989-07-01	36.0561158786532
1989-10-01	35.5249975358211
1990-01-01	35.5707145105536
1990-04-01	35.1669412932961
1990-07-01	35.0031445443936
1990-10-01	34.5467366913526
1991-01-01	34.2140573069670
1991-04-01	33.8066067276967
1991-07-01	33.6114369374176
1991-10-01	33.6408813963906
1992-01-01	33.4368739721365
1992-04-01	34.0814295034787
1992-07-01	33.8331633407957
1992-10-01	33.2206470812451
1993-01-01	33.1712615443101
1993-04-01	33.4687440908770
1993-07-01	33.3477791485070
1993-10-01	33.8484329751735
1994-01-01	33.8790204438327
1994-04-01	33.8112447480709
1994-07-01	33.6710032479446
1994-10-01	34.0641057874978
1995-01-01	33.8905973183221
1995-04-01	33.6268624241003
1995-07-01	33.9200474636884
1995-10-01	33.6340403229271
1996-01-01	34.2724182633291
1996-04-01	33.7726562108646
1996-07-01	33.3215920355227
1996-10-01	32.9560628497647
1997-01-01	33.2569011646639
1997-04-01	32.9806658854036
1997-07-01	33.1684825233843
1997-10-01	33.0004113863117
1998-01-01	32.9077189860542
1998-04-01	32.7032506310978
1998-07-01	32.9131203467828
1998-10-01	33.0681537633023
1999-01-01	32.5323910898390
1999-04-01	32.7936800429015
1999-07-01	32.8808615342204
1999-10-01	33.1041003960877
2000-01-01	33.4294453197695
2000-04-01	33.6060685966031
2000-07-01	33.3805560982621
2000-10-01	33.5795926097340
2001-01-01	33.6495746718584
2001-04-01	34.2707822653684
2001-07-01	34.4305035230885
2001-10-01	34.4144705288311
2002-01-01	34.1882981267066
2002-04-01	34.5067637946904
2002-07-01	34.7469300524117
2002-10-01	34.4715707089609
2003-01-01	34.2051655946198
2003-04-01	34.3094500474443
2003-07-01	34.2236601170825
2003-10-01	33.7637158111425
2004-01-01	34.2251200150181
2004-04-01	34.0123793178497
2004-07-01	33.7220144727072
2004-10-01	33.6967660432224
2005-01-01	33.6090049676057
2005-04-01	33.5174008616099
2005-07-01	33.0531527884172
2005-10-01	33.4678067554262
2006-01-01	33.0723311429752
2006-04-01	32.5475999826150
2006-07-01	32.6806275332312
2006-10-01	32.4061960631040
2007-01-01	31.7224182775891
2007-04-01	31.7686917033453
2007-07-01	31.3860298858009
2007-10-01	31.1129194365541
2008-01-01	31.3017556856508
2008-04-01	30.8616776527960
2008-07-01	31.0267479305330
2008-10-01	30.9694639913791
2009-01-01	31.0333184643412
2009-04-01	31.1362949716137
2009-07-01	30.9569215557376
2009-10-01	31.1691399761802
2010-01-01	31.0374656106332
2010-04-01	31.2453454474808
2010-07-01	30.9688740096384
2010-10-01	31.1307580335475
2011-01-01	30.9164073998517
2011-04-01	30.5301475569022
2011-07-01	31.3665962482629
2011-10-01	31.1845595065456
2012-01-01	31.5846984489800
2012-04-01	31.8878203390822
2012-07-01	31.9519814872630
2012-10-01	31.3530644608406
2013-01-01	30.7910821318330
2013-04-01	30.8742769605690
2013-07-01	30.3196816684380
2013-10-01	29.8157561802762
2014-01-01	29.4952280683390
2014-04-01	29.0017699752225
2014-07-01	28.8278910004587
2014-10-01	28.5050398015926
2015-01-01	27.9714779401435
2015-04-01	28.0075431563143
2015-07-01	27.1966102080243
2015-10-01	27.1826757654468
2016-01-01	26.8785968149168
2016-04-01	26.5507129852502
2016-07-01	25.9958211990090
2016-10-01	25.8453286296010
2017-01-01	25.2872368099140
2017-04-01	24.9300643612516
2017-07-01	24.2607192850293
2017-10-01	23.8811012897861
2018-01-01	23.5702678180002
2018-04-01	22.9485628949036
2018-07-01	22.9401942852535