Quarter	Percent, Seasonally Adjusted
1960-01-01	33.3449903829341
1960-04-01	33.0673143650243
1960-07-01	35.0658597365611
1960-10-01	35.4838709677419
1961-01-01	36.0346777233321
1961-04-01	35.8582089552239
1961-07-01	33.2807847258714
1961-10-01	33.2305055698372
1962-01-01	33.1985851440121
1962-04-01	32.8063241106719
1962-07-01	32.7560856069270
1962-10-01	34.1580976863753
1963-01-01	33.6056199967326
1963-04-01	32.8353464717101
1963-07-01	32.6763165999384
1963-10-01	32.5645756457565
1964-01-01	32.6418547895058
1964-04-01	31.7804154302671
1964-07-01	31.1622521348965
1964-10-01	30.7195053400787
1965-01-01	31.7048419831835
1965-04-01	29.4790177991425
1965-07-01	29.0911428204139
1965-10-01	29.0130940834142
1966-01-01	29.2289582107122
1966-04-01	29.5702592087312
1966-07-01	29.0538353651958
1966-10-01	28.8214702450408
1967-01-01	29.9352412784625
1967-04-01	31.5611457562626
1967-07-01	31.9144496609285
1967-10-01	29.2227056962025
1968-01-01	27.7679977763365
1968-04-01	27.0808803550403
1968-07-01	26.6502001533089
1968-10-01	27.1827259537424
1969-01-01	29.8926351478621
1969-04-01	25.7443491816056
1969-07-01	26.4198305616567
1969-10-01	26.9073200896653
1970-01-01	26.4575023013194
1970-04-01	27.4227110582640
1970-07-01	26.9907003777972
1970-10-01	25.9552787998868
1971-01-01	25.9983244903658
1971-04-01	24.9790065241263
1971-07-01	24.0830838323353
1971-10-01	26.0731739532426
1972-01-01	23.6109539436460
1972-04-01	24.1848758723258
1972-07-01	22.6030799801292
1972-10-01	22.5413851786911
1973-01-01	22.0738826681979
1973-04-01	21.6395088776302
1973-07-01	20.7857366841374
1973-10-01	20.0272592103089
1974-01-01	18.5061439655492
1974-04-01	16.9026967355307
1974-07-01	16.3774138352481
1974-10-01	16.7800118273211
1975-01-01	18.2591623036649
1975-04-01	18.8657119505348
1975-07-01	18.0104466617558
1975-10-01	18.1211450260952
1976-01-01	17.2729674975777
1976-04-01	16.5366959792047
1976-07-01	16.2079908438248
1976-10-01	16.1405257256758
1977-01-01	15.4319132706133
1977-04-01	15.4211941426127
1977-07-01	15.3544622374663
1977-10-01	15.3771530816824
1978-01-01	15.1939160462285
1978-04-01	15.1757282122414
1978-07-01	15.6597683690906
1978-10-01	15.7850096800959
1979-01-01	15.3811954260106
1979-04-01	14.9988282165456
1979-07-01	14.7305427042049
1979-10-01	14.0512421465214
1980-01-01	13.5718975705844
1980-04-01	13.9624205581652
1980-07-01	14.8509422527488
1980-10-01	14.6572039612592
1981-01-01	14.4964524526568
1981-04-01	14.5584270234522
1981-07-01	14.8539851671668
1981-10-01	14.7045614935523
1982-01-01	16.7197807241872
1982-04-01	17.7751235137630
1982-07-01	16.7263694600601
1982-10-01	17.9641785317857
1983-01-01	17.8123452714969
1983-04-01	17.3053357161093
1983-07-01	16.7248500053253
1983-10-01	16.2315460556109
1984-01-01	16.8257345808430
1984-04-01	16.7704577734076
1984-07-01	16.9835585541024
1984-10-01	17.1312642646743
1985-01-01	18.0635749699059
1985-04-01	17.7711224122675
1985-07-01	17.7846364883402
1985-10-01	17.3401094170902
1986-01-01	18.2030712812285
1986-04-01	17.2061836132444
1986-07-01	18.0557885720845
1986-10-01	17.9991164164624
1987-01-01	18.1361683262856
1987-04-01	18.2952469862402
1987-07-01	17.9441235412000
1987-10-01	18.1783961212997
1988-01-01	18.2224502848304
1988-04-01	17.9709587175654
1988-07-01	18.1475986980493
1988-10-01	17.8867511340529
1989-01-01	17.4766595527254
1989-04-01	17.2584493993286
1989-07-01	18.0047608742696
1989-10-01	17.9207172101832
1990-01-01	18.3992946708464
1990-04-01	19.1064525128532
1990-07-01	19.4235824867742
1990-10-01	19.4447250776652
1991-01-01	19.5895534651968
1991-04-01	19.8046246402650
1991-07-01	19.2551171133150
1991-10-01	19.1090277154327
1992-01-01	18.8696710709848
1992-04-01	18.1828848802238
1992-07-01	18.1533241488843
1992-10-01	17.7315880998261
1993-01-01	17.4064424031057
1993-04-01	17.2775990217569
1993-07-01	17.3053138204102
1993-10-01	17.4345702807766
1994-01-01	17.3489783831803
1994-04-01	16.8293217410803
1994-07-01	16.4046719943796
1994-10-01	15.8918504786047
1995-01-01	15.7633979266640
1995-04-01	15.5981813899123
1995-07-01	15.9452548043119
1995-10-01	16.1867148626637
1996-01-01	16.0191763664241
1996-04-01	15.8223800467864
1996-07-01	16.1009606016509
1996-10-01	15.9112593474520
1997-01-01	15.8691195299551
1997-04-01	15.8338336399729
1997-07-01	15.9960768213129
1997-10-01	15.9510052981423
1998-01-01	15.9810459421857
1998-04-01	16.3394648584526
1998-07-01	16.7315942961138
1998-10-01	16.6788595942951
1999-01-01	16.3242673957545
1999-04-01	15.8383086159729
1999-07-01	15.5335488829743
1999-10-01	15.1950718685832
2000-01-01	14.9507094158835
2000-04-01	15.0419067134723
2000-07-01	15.1384512453058
2000-10-01	14.5836072965002
2001-01-01	14.8929656921698
2001-04-01	15.7910973616153
2001-07-01	16.0540524326594
2001-10-01	15.7844740325469
2002-01-01	16.6570163126351
2002-04-01	15.8196629584250
2002-07-01	15.6737958126241
2002-10-01	16.1024232855083
2003-01-01	15.6790958867917
2003-04-01	15.4901151323334
2003-07-01	16.4268645287353
2003-10-01	16.3535914406367
2004-01-01	16.3658280720665
2004-04-01	16.0234497300406
2004-07-01	15.9001422646659
2004-10-01	15.6762002869025
2005-01-01	15.5420182502242
2005-04-01	15.3121175279860
2005-07-01	15.2540283455549
2005-10-01	14.8127210885640
2006-01-01	15.3460607292687
2006-04-01	15.3129264752196
2006-07-01	14.9432977738602
2006-10-01	15.8878754647337
2007-01-01	15.7914605068634
2007-04-01	15.8229887105950
2007-07-01	15.8937643719762
2007-10-01	15.6729384573389
2008-01-01	15.5956897480792
2008-04-01	15.3386705614007
2008-07-01	15.5330575556721
2008-10-01	17.9391189722273
2009-01-01	20.2144041571171
2009-04-01	20.5891796436025
2009-07-01	19.4667348121438
2009-10-01	18.5725490196078
2010-01-01	17.8618231236754
2010-04-01	17.3255323725532
2010-07-01	17.3517119998929
2010-10-01	17.2152724544550
2011-01-01	16.1555952146934
2011-04-01	16.3461552825744
2011-07-01	16.4632993370127
2011-10-01	16.1754611409277
2012-01-01	16.1050967210965
2012-04-01	16.3293939494647
2012-07-01	16.5935690688209
2012-10-01	16.5864309003167
2013-01-01	16.5555586290836
2013-04-01	16.7068402865718
2013-07-01	16.7601931268207
2013-10-01	16.9133103809963
2014-01-01	16.6075725137440
2014-04-01	16.6423290920376
2014-07-01	16.8134151443313
2014-10-01	17.0281396219743
2015-01-01	17.3731663685152
2015-04-01	17.5337607420543
2015-07-01	17.8917711009710
2015-10-01	18.3847929058776
2016-01-01	18.8921963585110
2016-04-01	18.7279141432770
2016-07-01	18.7224560245556
2016-10-01	18.6971344726394
2017-01-01	18.5276936163034
2017-04-01	18.7040438610694
2017-07-01	19.0139050115113
2017-10-01	18.4978168951486
2018-01-01	18.0421712516820
2018-04-01	18.1048482132913