Quarter	Percent, Seasonally Adjusted
1981-01-01	32.4734900604825
1981-04-01	32.0301835672108
1981-07-01	33.4054926717280
1981-10-01	33.2860290764603
1982-01-01	32.6378143381498
1982-04-01	31.7693267344444
1982-07-01	30.5719464156898
1982-10-01	31.0431909771335
1983-01-01	30.8728087083296
1983-04-01	27.9327092590422
1983-07-01	27.2574368440101
1983-10-01	28.7301355449872
1984-01-01	28.0940602860693
1984-04-01	27.7370099341022
1984-07-01	27.5322292525913
1984-10-01	27.4892256193733
1985-01-01	28.7851728597777
1985-04-01	28.8990267507118
1985-07-01	25.9614713371684
1985-10-01	26.1889894061537
1986-01-01	27.5634516573047
1986-04-01	35.1166017325180
1986-07-01	33.0996357169270
1986-10-01	30.5065666479545
1987-01-01	28.3408054895248
1987-04-01	27.7902717169763
1987-07-01	30.6385838683009
1987-10-01	29.8688457414178
1988-01-01	30.2284194111540
1988-04-01	30.7627232526594
1988-07-01	30.2661349952880
1988-10-01	30.5970165934169
1989-01-01	29.1222445295286
1989-04-01	28.5397561122445
1989-07-01	29.0381162202704
1989-10-01	30.0184201911341
1990-01-01	29.9437409391419
1990-04-01	29.4235448687237
1990-07-01	27.3772921094041
1990-10-01	25.9379265004034
1991-01-01	27.8074308656373
1991-04-01	29.3417972712532
1991-07-01	29.2755056187462
1991-10-01	28.6418705010187
1992-01-01	26.3993336612904
1992-04-01	27.0488396399069
1992-07-01	29.2258599692846
1992-10-01	27.0431150192241
1993-01-01	28.7784600408267
1993-04-01	27.1254630366998
1993-07-01	29.9053691586357
1993-10-01	28.0393691806447
1994-01-01	27.8926023998843
1994-04-01	27.0893135645917
1994-07-01	26.1164391799642
1994-10-01	26.9959953650163
1995-01-01	25.7244520615941
1995-04-01	25.7236718528401
1995-07-01	25.7984376231127
1995-10-01	25.5167689150010
1996-01-01	24.9054146153905
1996-04-01	24.1637115645384
1996-07-01	24.0299828572348
1996-10-01	22.8191888787211
1997-01-01	24.1488971046030
1997-04-01	26.0585985603105
1997-07-01	25.5470033725078
1997-10-01	25.8098217601109
1998-01-01	27.5308428814984
1998-04-01	28.3898389467555
1998-07-01	30.1118241124262
1998-10-01	30.1332575765253
1999-01-01	30.0971492573581
1999-04-01	27.9089020261493
1999-07-01	26.1417522341388
1999-10-01	24.1311764874604
2000-01-01	23.7307583184920
2000-04-01	23.9191181738773
2000-07-01	22.1697663751562
2000-10-01	23.0836167320167
2001-01-01	25.0623032642123
2001-04-01	23.9827824797008
2001-07-01	23.9796789170602
2001-10-01	24.9270601977783
2002-01-01	25.7293430574888
2002-04-01	25.3089460246062
2002-07-01	25.6250149533436
2002-10-01	25.8486838524280
2003-01-01	24.6520719379410
2003-04-01	24.9152778667244
2003-07-01	25.4031857799805
2003-10-01	24.9281066245324
2004-01-01	25.1062871544484
2004-04-01	24.1713044898447
2004-07-01	23.4110583230291
2004-10-01	24.2898096963334
2005-01-01	24.0310613380564
2005-04-01	23.3014141906532
2005-07-01	21.8368032797407
2005-10-01	22.2253555989854
2006-01-01	20.5331253276999
2006-04-01	20.6962613042164
2006-07-01	21.2253918310128
2006-10-01	22.0984667335768
2007-01-01	22.5246184435248
2007-04-01	22.0948450865691
2007-07-01	22.6160809676576
2007-10-01	21.2601795734988
2008-01-01	20.2382704408176
2008-04-01	20.5413786426616
2008-07-01	19.4143924862286
2008-10-01	20.5047357588751
2009-01-01	23.5586829906605
2009-04-01	24.0498029335967
2009-07-01	22.7381829273140
2009-10-01	23.2803813002681
2010-01-01	24.3805306672915
2010-04-01	24.6495495689934
2010-07-01	24.8143566882434
2010-10-01	23.9919139867306
2011-01-01	22.4067853846278
2011-04-01	21.2667309133049
2011-07-01	21.6770844540902
2011-10-01	23.3010991367730
2012-01-01	21.6392145356163
2012-04-01	22.5459435330302
2012-07-01	23.1455711500772
2012-10-01	22.8418554623791
2013-01-01	22.9972743694947
2013-04-01	24.8632180061108
2013-07-01	23.6783648917475
2013-10-01	23.9618627398519
2014-01-01	23.5384078493663
2014-04-01	25.7542092387245
2014-07-01	26.1828697948081
2014-10-01	26.9506971226032
2015-01-01	28.6374295030942
2015-04-01	27.8255598015896
2015-07-01	27.6976474059596
2015-10-01	30.5859658364328
2016-01-01	33.2697328339446
2016-04-01	32.3632537752283
2016-07-01	32.3564017246121
2016-10-01	29.3435565836531
2017-01-01	27.4124962496923
2017-04-01	28.6774252412289
2017-07-01	29.8631251501264
2017-10-01	27.2855605626777
2018-01-01	26.8163641836622
2018-04-01	26.7830919222583