Quarter	Percent, Seasonally Adjusted
1960-01-01	21.3527851458886
1960-04-01	20.7571801566580
1960-07-01	20.7908163265306
1960-10-01	21.0962396430848
1961-01-01	21.6475095785441
1961-04-01	21.7700258397933
1961-07-01	22.3692918596956
1961-10-01	22.3031105228326
1962-01-01	22.7626459143969
1962-04-01	22.3363286264442
1962-07-01	21.5149586250796
1962-10-01	22.3994894703255
1963-01-01	21.9160926737633
1963-04-01	21.8844984802432
1963-07-01	21.7058823529412
1963-10-01	21.5428571428571
1964-01-01	21.2299465240642
1964-04-01	21.0582576162480
1964-07-01	20.8750658935161
1964-10-01	20.6048180420297
1965-01-01	22.0917822838847
1965-04-01	21.5716486902928
1965-07-01	21.2121212121212
1965-10-01	21.3930348258706
1966-01-01	21.4876033057851
1966-04-01	21.5415019762846
1966-07-01	21.4971209213052
1966-10-01	21.8875502008032
1967-01-01	20.4139228598307
1967-04-01	20.4524469067405
1967-07-01	21.9322344322344
1967-10-01	22.6120033812342
1968-01-01	20.2926453600308
1968-04-01	19.3610469591994
1968-07-01	19.5321203119198
1968-10-01	19.7644460802356
1969-01-01	20.9513435003631
1969-04-01	19.9070764832023
1969-07-01	20.0212239122745
1969-10-01	21.0344827586207
1970-01-01	21.1780728634661
1970-04-01	20.8600770218228
1970-07-01	22.9351969504447
1970-10-01	23.6352729454109
1971-01-01	23.1848688224527
1971-04-01	22.5121881273301
1971-07-01	22.8039557882490
1971-10-01	22.4978855370736
1972-01-01	19.7503671071953
1972-04-01	18.9046360797502
1972-07-01	20.0188191013879
1972-10-01	18.9565578881729
1973-01-01	17.9521025834433
1973-04-01	17.8838617741361
1973-07-01	17.7382129904385
1973-10-01	17.5003733014783
1974-01-01	16.4859568909210
1974-04-01	15.7062417635078
1974-07-01	15.6190926275992
1974-10-01	15.7179073519244
1975-01-01	16.3106796116505
1975-04-01	16.7877320419693
1975-07-01	16.5009725524098
1975-10-01	16.8527491046977
1976-01-01	15.8194387962586
1976-04-01	15.9878798681044
1976-07-01	15.8307342156284
1976-10-01	15.7977634273114
1977-01-01	14.7557328015952
1977-04-01	14.5898880515109
1977-07-01	15.2835864700271
1977-10-01	15.3043737426421
1978-01-01	14.3987120257595
1978-04-01	14.7822503091084
1978-07-01	14.1601626549485
1978-10-01	13.7163861481911
1979-01-01	14.2814027886763
1979-04-01	13.4274684012904
1979-07-01	13.4343274946084
1979-10-01	12.8976784178848
1980-01-01	12.8649183572489
1980-04-01	12.8774384150845
1980-07-01	13.6783910018111
1980-10-01	13.6280634310428
1981-01-01	13.2737983916215
1981-04-01	13.3773671669245
1981-07-01	11.2876635448455
1981-10-01	11.7221030042918
1982-01-01	11.5000349332774
1982-04-01	12.1409017447805
1982-07-01	12.0310780619560
1982-10-01	12.0080693167538
1983-01-01	11.6394286449620
1983-04-01	12.3263442243375
1983-07-01	12.5519641648674
1983-10-01	11.8812785388128
1984-01-01	11.9193715725508
1984-04-01	11.7613168724280
1984-07-01	10.9525279020727
1984-10-01	10.9525317226430
1985-01-01	10.5949470252649
1985-04-01	10.6490897062067
1985-07-01	10.9288054501014
1985-10-01	11.6078225488909
1986-01-01	11.8024391531598
1986-04-01	12.2892577151997
1986-07-01	12.1494853202170
1986-10-01	12.0640211769896
1987-01-01	12.2224405580664
1987-04-01	12.5877632898696
1987-07-01	12.6081952117864
1987-10-01	12.5028508871961
1988-01-01	12.6820186617611
1988-04-01	12.3792012315060
1988-07-01	11.8099061289865
1988-10-01	12.0158304108462
1989-01-01	11.9224270917505
1989-04-01	11.3780335866075
1989-07-01	11.6131134048901
1989-10-01	11.3788910910878
1990-01-01	11.3189851721294
1990-04-01	11.6471176650909
1990-07-01	11.8706959951862
1990-10-01	12.0234796438702
1991-01-01	11.6122710993986
1991-04-01	12.5592141349334
1991-07-01	12.4935121469352
1991-10-01	13.0232875776822
1992-01-01	13.4470698626631
1992-04-01	14.0807235880173
1992-07-01	13.6203294633378
1992-10-01	13.3252419432112
1993-01-01	13.0180539061678
1993-04-01	14.2694573023513
1993-07-01	14.2037367895103
1993-10-01	14.2262307403232
1994-01-01	14.6194877521931
1994-04-01	15.2267071141414
1994-07-01	14.9964668387581
1994-10-01	14.8518176475527
1995-01-01	13.7212175969600
1995-04-01	14.0956536076198
1995-07-01	13.9729635703991
1995-10-01	13.4962187318208
1996-01-01	13.9367495030990
1996-04-01	14.3124911585797
1996-07-01	14.0842945668067
1996-10-01	14.5561734234754
1997-01-01	14.2918564655573
1997-04-01	14.4269180724542
1997-07-01	14.3208004165063
1997-10-01	14.4503555904571
1998-01-01	14.6154357066950
1998-04-01	15.2182250517757
1998-07-01	16.2170535519627
1998-10-01	16.4008959315348
1999-01-01	16.2024251316130
1999-04-01	16.7386666383620
1999-07-01	15.9675764416171
1999-10-01	16.6114823510525
2000-01-01	15.4975232049247
2000-04-01	15.6105523284973
2000-07-01	15.5002707044529
2000-10-01	15.5397859069743
2001-01-01	15.1784894925209
2001-04-01	15.8424213141911
2001-07-01	16.3895762795144
2001-10-01	16.5854709662913
2002-01-01	17.0670812565732
2002-04-01	16.8580065702104
2002-07-01	17.8512277669763
2002-10-01	17.8908374240406
2003-01-01	18.3613908958252
2003-04-01	18.4615114913311
2003-07-01	18.6860001901091
2003-10-01	18.3618243598277
2004-01-01	18.1797078522238
2004-04-01	18.1050171132816
2004-07-01	17.6853251450233
2004-10-01	17.7254161292304
2005-01-01	17.5751469858503
2005-04-01	17.0185871470022
2005-07-01	15.8468541464925
2005-10-01	15.8511096677106
2006-01-01	14.7546070437346
2006-04-01	14.3174670208155
2006-07-01	14.8564137481190
2006-10-01	14.7361800503162
2007-01-01	14.4998151819618
2007-04-01	14.2124798278644
2007-07-01	13.7687700008205
2007-10-01	14.0291991948494
2008-01-01	14.3036455194330
2008-04-01	14.2013568361979
2008-07-01	14.6887411931421
2008-10-01	15.7692347773528
2009-01-01	17.4393827637479
2009-04-01	18.3474902515958
2009-07-01	18.6376367586830
2009-10-01	18.0700789979185
2010-01-01	17.8314296871187
2010-04-01	17.5169044293404
2010-07-01	17.1514864317075
2010-10-01	16.5789416090344
2011-01-01	16.1642292252327
2011-04-01	16.4017711237791
2011-07-01	15.6930394238375
2011-10-01	16.2525956298553
2012-01-01	16.0842074561723
2012-04-01	16.6130134663446
2012-07-01	16.2906602339989
2012-10-01	16.5470443085506
2013-01-01	16.3834084834636
2013-04-01	16.9867557990500
2013-07-01	16.9228770190309
2013-10-01	16.8384758467378
2014-01-01	18.0172251210159
2014-04-01	17.3509782195935
2014-07-01	17.5540006084576
2014-10-01	16.7878648448597
2015-01-01	17.5863863128577
2015-04-01	18.9187462057066
2015-07-01	19.2050834921475
2015-10-01	18.5864755184860
2016-01-01	19.0371093547147
2016-04-01	18.9774267607677
2016-07-01	18.7934814138503
2016-10-01	19.7300864794277
2017-01-01	19.0978909240854
2017-04-01	18.2890523816376
2017-07-01	18.4201286262239
2017-10-01	18.5892112497169
2018-01-01	18.7933660146495
2018-04-01	18.4679097912152