Quarter	Percent, Seasonally Adjusted
1970-01-01	46.5928584196292
1970-04-01	46.2265743906053
1970-07-01	46.3307357877439
1970-10-01	46.9269062619928
1971-01-01	46.9352759170261
1971-04-01	47.3061381277963
1971-07-01	47.5958654748267
1971-10-01	47.9614593768425
1972-01-01	48.2363610763014
1972-04-01	48.7875785575397
1972-07-01	48.5211724825144
1972-10-01	47.8672785601215
1973-01-01	47.0726190922108
1973-04-01	48.2559144444855
1973-07-01	48.1660512233110
1973-10-01	47.8425639053688
1974-01-01	48.8055635379660
1974-04-01	49.0829892042578
1974-07-01	49.8328173909279
1974-10-01	49.9384319892813
1975-01-01	50.3081375810067
1975-04-01	49.9541544780222
1975-07-01	49.8767373301613
1975-10-01	50.3501187432496
1976-01-01	49.9529046342918
1976-04-01	50.3725423977082
1976-07-01	49.7032810578541
1976-10-01	49.7639074192694
1977-01-01	49.3616611994275
1977-04-01	48.7624764456269
1977-07-01	48.7048144728714
1977-10-01	48.4594224284347
1978-01-01	48.3151236427809
1978-04-01	47.8238400556058
1978-07-01	47.9628775317103
1978-10-01	47.6472234305164
1979-01-01	47.4288888498357
1979-04-01	47.6163159967187
1979-07-01	47.4600247273229
1979-10-01	47.3726997541890
1980-01-01	47.5685971903949
1980-04-01	47.3587153883244
1980-07-01	46.9029975626103
1980-10-01	47.3425570858221
1981-01-01	47.5106380637018
1981-04-01	47.1037147480434
1981-07-01	47.0839445416607
1981-10-01	46.5812111498567
1982-01-01	46.5048709257197
1982-04-01	46.7032444277806
1982-07-01	46.8233884180506
1982-10-01	46.0660000117578
1983-01-01	45.3030060612559
1983-04-01	45.3517438156073
1983-07-01	45.1892339343043
1983-10-01	45.3928808736693
1984-01-01	45.7112196529237
1984-04-01	45.3102139680165
1984-07-01	45.0270203742608
1984-10-01	44.9316612103670
1985-01-01	45.1062182922957
1985-04-01	45.2431688753538
1985-07-01	45.1271605997571
1985-10-01	45.2303984160738
1986-01-01	44.9177915770182
1986-04-01	45.1462929478131
1986-07-01	44.9319417551661
1986-10-01	45.0780027850736
1987-01-01	45.1290630396796
1987-04-01	44.8313936333882
1987-07-01	44.8772323860263
1987-10-01	44.5356385346600
1988-01-01	44.5381412211004
1988-04-01	44.4396813249434
1988-07-01	44.3133977256915
1988-10-01	44.3283671410146
1989-01-01	43.9201128344399
1989-04-01	43.5176378429789
1989-07-01	43.4521368033450
1989-10-01	43.2298130903918
1990-01-01	42.8102927854096
1990-04-01	42.7482937023740
1990-07-01	42.5665025200207
1990-10-01	42.4866021092821
1991-01-01	42.0949215823904
1991-04-01	41.9681600411892
1991-07-01	41.6439994642206
1991-10-01	41.5524720094882
1992-01-01	41.5639195011551
1992-04-01	41.7207305197832
1992-07-01	41.7017114246721
1992-10-01	41.2836529456161
1993-01-01	41.9127017001491
1993-04-01	41.7763022570127
1993-07-01	41.6604686827172
1993-10-01	41.4111105378710
1994-01-01	41.5770496150158
1994-04-01	41.3317455409904
1994-07-01	41.7322678433886
1994-10-01	41.6801307187922
1995-01-01	41.4321029659518
1995-04-01	41.5249668895218
1995-07-01	41.4911629519483
1995-10-01	41.5299375775454
1996-01-01	41.3061084698136
1996-04-01	41.0736198926799
1996-07-01	40.8456924905424
1996-10-01	40.9697865666299
1997-01-01	40.5389783506719
1997-04-01	40.4437255943506
1997-07-01	40.1559743472361
1997-10-01	40.0912210144803
1998-01-01	40.0617668197287
1998-04-01	40.2211648431075
1998-07-01	40.1340169480090
1998-10-01	40.3486349417181
1999-01-01	40.4802400706237
1999-04-01	40.3381976504241
1999-07-01	40.2810630777514
1999-10-01	40.5172416729857
2000-01-01	40.6816061778976
2000-04-01	40.2539623923316
2000-07-01	40.3618289840142
2000-10-01	40.0812837502183
2001-01-01	39.6532965004362
2001-04-01	40.0225355057404
2001-07-01	40.1761767850860
2001-10-01	39.8941934419693
2002-01-01	40.1288814682985
2002-04-01	40.4538141209267
2002-07-01	40.2000079863936
2002-10-01	39.9603206586528
2003-01-01	40.1529844787374
2003-04-01	39.9347359167372
2003-07-01	40.0311704752296
2003-10-01	39.8338680497327
2004-01-01	39.7680735219053
2004-04-01	39.9507151294998
2004-07-01	39.4865575215221
2004-10-01	39.7509767334706
2005-01-01	39.3857985096361
2005-04-01	39.0834597028502
2005-07-01	38.9230272014908
2005-10-01	39.1307466269164
2006-01-01	38.8701603063763
2006-04-01	38.6999418276070
2006-07-01	38.4832900990993
2006-10-01	38.3844642982621
2007-01-01	38.3444979712217
2007-04-01	37.8856570781516
2007-07-01	38.1179834963570
2007-10-01	37.6047721903588
2008-01-01	37.7488111822226
2008-04-01	37.4962846799227
2008-07-01	37.6851027677348
2008-10-01	37.3994295830806
2009-01-01	37.0758169437919
2009-04-01	37.1736099983664
2009-07-01	36.6628769662363
2009-10-01	36.7930381995091
2010-01-01	36.8264591788147
2010-04-01	36.9713074690697
2010-07-01	36.4972343884913
2010-10-01	36.5263935482222
2011-01-01	36.1892008835458
2011-04-01	35.9992542340538
2011-07-01	36.3646735653795
2011-10-01	36.8151584253305
2012-01-01	36.7818003027372
2012-04-01	36.5537741938093
2012-07-01	36.5055795426000
2012-10-01	36.3890078213491
2013-01-01	35.3421161195672
2013-04-01	35.0892190182005
2013-07-01	34.9000306458924
2013-10-01	34.4173760549664
2014-01-01	34.3058532653984
2014-04-01	34.0229136053976
2014-07-01	33.7854837659028
2014-10-01	33.5271610818260
2015-01-01	33.4831719408790
2015-04-01	33.2377316356855
2015-07-01	32.9434497277630
2015-10-01	32.6976654799921
2016-01-01	32.2179960793010
2016-04-01	32.0290789179816
2016-07-01	31.6032176896076
2016-10-01	31.4040780463525
2017-01-01	31.1462078111419
2017-04-01	30.7255735005220
2017-07-01	30.3580809870597
2017-10-01	29.9764640405352
2018-01-01	29.2652747196935
2018-04-01	28.8964693984236
2018-07-01	28.5045879244555