Quarter	Percent, Seasonally Adjusted
1970-01-01	75.7156564870125
1970-04-01	76.1436641360408
1970-07-01	75.8498149984651
1970-10-01	75.5097293082112
1971-01-01	75.6245936956867
1971-04-01	75.1530762899587
1971-07-01	75.0952134976021
1971-10-01	75.1235747760826
1972-01-01	75.1407997173810
1972-04-01	74.9164816260596
1972-07-01	75.2622741715527
1972-10-01	75.5601477032134
1973-01-01	76.0167484266784
1973-04-01	75.5638445818421
1973-07-01	75.6417876775287
1973-10-01	75.9018809879799
1974-01-01	75.5762985776459
1974-04-01	75.3143052372312
1974-07-01	74.9098807522938
1974-10-01	74.8725472660091
1975-01-01	74.6332715573734
1975-04-01	74.7638122034226
1975-07-01	75.0014155360446
1975-10-01	74.8643163495291
1976-01-01	74.9848611597144
1976-04-01	74.9173601199795
1976-07-01	75.3467885895279
1976-10-01	75.3747167557017
1977-01-01	75.5262469764560
1977-04-01	75.8962097351946
1977-07-01	75.9335881161272
1977-10-01	76.0266788933462
1978-01-01	76.2444067777349
1978-04-01	76.5823365947842
1978-07-01	76.4959796632439
1978-10-01	76.7120591771392
1979-01-01	76.8018554323596
1979-04-01	76.9119388712088
1979-07-01	77.0971656249252
1979-10-01	77.1904596244540
1980-01-01	77.0740203355910
1980-04-01	77.0919163044600
1980-07-01	77.2841447737398
1980-10-01	77.3074466524186
1981-01-01	77.2736210328782
1981-04-01	77.3829714350534
1981-07-01	77.3317302462700
1981-10-01	77.7191587811014
1982-01-01	78.0058261430790
1982-04-01	77.8968952174158
1982-07-01	77.6858819160511
1982-10-01	78.2919831638540
1983-01-01	78.6999563481394
1983-04-01	78.6454250160122
1983-07-01	78.9396514543130
1983-10-01	78.7442081544577
1984-01-01	78.6932552223444
1984-04-01	78.8918767896704
1984-07-01	79.1483071091582
1984-10-01	79.2838801677744
1985-01-01	79.0350284234733
1985-04-01	79.0700361381293
1985-07-01	79.2394665173715
1985-10-01	79.0677840924666
1986-01-01	79.2648349361326
1986-04-01	79.3343687551221
1986-07-01	79.4981710584133
1986-10-01	79.2020339130488
1987-01-01	79.3462680735536
1987-04-01	79.6287390418673
1987-07-01	79.7675673645523
1987-10-01	79.7912229723820
1988-01-01	79.9412082706238
1988-04-01	80.1036711293853
1988-07-01	80.2668762524587
1988-10-01	80.1035668157794
1989-01-01	80.4276827833768
1989-04-01	80.8225856238529
1989-07-01	80.7952480367866
1989-10-01	80.7593456038948
1990-01-01	81.2801386400230
1990-04-01	81.1288691971255
1990-07-01	81.1259871501874
1990-10-01	81.1723779861074
1991-01-01	81.6085739978781
1991-04-01	81.4344669777881
1991-07-01	81.5597777332964
1991-10-01	81.9609519113276
1992-01-01	81.8822552901350
1992-04-01	81.6681994011059
1992-07-01	81.5486159546550
1992-10-01	82.1573800994838
1993-01-01	81.4680885228030
1993-04-01	81.6219786253195
1993-07-01	81.5280183676205
1993-10-01	81.9077074429381
1994-01-01	81.5301768086733
1994-04-01	81.7333065858110
1994-07-01	81.3794672432630
1994-10-01	81.3866349509168
1995-01-01	81.3671286167354
1995-04-01	81.4924382627539
1995-07-01	81.6829508292346
1995-10-01	81.4378796037445
1996-01-01	81.6835334094711
1996-04-01	81.8059732926373
1996-07-01	82.0355588886708
1996-10-01	81.8869586028998
1997-01-01	82.3789062014094
1997-04-01	82.3972617111934
1997-07-01	82.3361036092816
1997-10-01	82.2080133346794
1998-01-01	82.3300226646407
1998-04-01	82.1322667259136
1998-07-01	82.1328564487205
1998-10-01	81.9832799430726
1999-01-01	81.9301338189481
1999-04-01	81.9516455959078
1999-07-01	82.1702703878130
1999-10-01	82.1127135176448
2000-01-01	81.8202485109266
2000-04-01	82.1326742832345
2000-07-01	82.0352112647058
2000-10-01	82.1430183041629
2001-01-01	82.3899048618372
2001-04-01	82.1742495042708
2001-07-01	82.1315160530905
2001-10-01	82.2752425654121
2002-01-01	82.0864524322172
2002-04-01	81.8240041736094
2002-07-01	82.1200658126502
2002-10-01	82.4410530629358
2003-01-01	82.1558076482709
2003-04-01	82.2876669413897
2003-07-01	82.2408109048889
2003-10-01	82.4548742951068
2004-01-01	82.4385683053180
2004-04-01	82.2710661371593
2004-07-01	82.4497711081357
2004-10-01	82.2462539948226
2005-01-01	82.5282653927540
2005-04-01	82.6325538822142
2005-07-01	82.6929059202556
2005-10-01	82.5800447971301
2006-01-01	82.8615144734352
2006-04-01	82.9525199068687
2006-07-01	82.9990928368065
2006-10-01	83.0081671195509
2007-01-01	83.1046532978562
2007-04-01	83.5828571804549
2007-07-01	83.2533108968849
2007-10-01	83.5854212687126
2008-01-01	83.5028010985918
2008-04-01	83.4312766225192
2008-07-01	83.4202229559534
2008-10-01	83.7014191263336
2009-01-01	83.8761845614701
2009-04-01	83.5729263211456
2009-07-01	84.0543860538071
2009-10-01	84.0241980473360
2010-01-01	84.1374213896229
2010-04-01	84.0480903110076
2010-07-01	84.2522849117280
2010-10-01	84.1144683933414
2011-01-01	84.4303287711787
2011-04-01	84.4695718647143
2011-07-01	84.2035787986618
2011-10-01	84.0977126054688
2012-01-01	83.9291326138820
2012-04-01	84.2404650524392
2012-07-01	84.0267007094200
2012-10-01	84.1002335187310
2013-01-01	84.5780374718062
2013-04-01	84.8761982508051
2013-07-01	84.8012900951768
2013-10-01	85.1667729054806
2014-01-01	85.0679166670091
2014-04-01	85.2672097940181
2014-07-01	85.2343665054610
2014-10-01	85.4976352673988
2015-01-01	85.5476896168104
2015-04-01	85.3968088025544
2015-07-01	85.6406577510402
2015-10-01	85.6996333289129
2016-01-01	85.9870618842474
2016-04-01	85.8850286346851
2016-07-01	86.2834274764646
2016-10-01	86.3423082450549
2017-01-01	86.3634528763986
2017-04-01	86.5232234972348
2017-07-01	86.7192422176181
2017-10-01	87.0461231171082
2018-01-01	87.2786082219780
2018-04-01	87.3246487650601
2018-07-01	87.5722955837398