Quarter	Percent, Seasonally Adjusted
1981-01-01	13.35363171333330
1981-04-01	14.12078419000000
1981-07-01	14.48994147666670
1981-10-01	14.53137007000000
1982-01-01	14.38096346000000
1982-04-01	10.61557109666670
1982-07-01	10.19537267333330
1982-10-01	9.57498376600000
1983-01-01	10.85641715666670
1983-04-01	12.00819349666670
1983-07-01	12.41369179666670
1983-10-01	12.59018016333330
1984-01-01	13.07908670000000
1984-04-01	13.45150830666670
1984-07-01	12.67065096666670
1984-10-01	11.65819241666670
1985-01-01	10.63292687333330
1985-04-01	9.91269747733333
1985-07-01	8.96669790500000
1985-10-01	8.01995068266666
1986-01-01	7.14394241333333
1986-04-01	6.57807550066667
1986-07-01	6.09888205133333
1986-10-01	5.84860303500000
1987-01-01	5.31646724666667
1987-04-01	6.44687633833333
1987-07-01	7.50333705233333
1987-10-01	7.41034120233333
1988-01-01	6.86107497466667
1988-04-01	6.58119459800000
1988-07-01	7.03435590633333
1988-10-01	7.01921977266667
1989-01-01	6.62628837533333
1989-04-01	5.72952797666667
1989-07-01	5.77238061066667
1989-10-01	5.84264631666667
1990-01-01	5.86396787800000
1990-04-01	8.27120368233334
1990-07-01	7.93923560966667
1990-10-01	8.49156479433334
1991-01-01	9.28037365533333
1991-04-01	9.11204249533333
1991-07-01	7.32866539500000
1991-10-01	8.77318703400000
1992-01-01	9.85013133500000
1992-04-01	9.87246906166666
1992-07-01	10.06863389500000
1992-10-01	10.68241166333330
1993-01-01	9.97320898900000
1993-04-01	9.20227187900000
1993-07-01	9.26495884666667
1993-10-01	9.44432170600000
1994-01-01	9.53361572100000
1994-04-01	8.97944951533334
1994-07-01	9.48911046900000
1994-10-01	8.20989167833333
1995-01-01	7.33226638233333
1995-04-01	7.44947487066667
1995-07-01	8.84271531466667
1995-10-01	9.54300327933334
1996-01-01	9.87510886100000
1996-04-01	10.09486005400000
1996-07-01	9.70876573833334
1996-10-01	9.11991789200000
1997-01-01	9.49116084900000
1997-04-01	10.04893021600000
1997-07-01	10.40938204666670
1997-10-01	10.54427053000000
1998-01-01	13.20962026000000
1998-04-01	13.74530966000000
1998-07-01	13.90535514000000
1998-10-01	13.43195805000000
1999-01-01	13.55205811000000
1999-04-01	13.46176797666670
1999-07-01	13.40824195000000
1999-10-01	13.56984161666670
2000-01-01	13.86246954666670
2000-04-01	13.14092335000000
2000-07-01	12.43908059666670
2000-10-01	11.50489589666670
2001-01-01	10.35200137066670
2001-04-01	11.22876768333330
2001-07-01	10.97367881333330
2001-10-01	12.10581728333330
2002-01-01	11.98165077690750
2002-04-01	11.61003432116470
2002-07-01	11.62815251658700
2002-10-01	11.64898159222890
2003-01-01	11.50839323800070
2003-04-01	12.37890326836060
2003-07-01	12.88392475340560
2003-10-01	12.86619338362230
2004-01-01	12.05614220372430
2004-04-01	11.94994921243130
2004-07-01	11.11195207873080
2004-10-01	11.00590320553950
2005-01-01	10.43241464302720
2005-04-01	9.76804122429234
2005-07-01	9.46252708270224
2005-10-01	9.88215109201453
2006-01-01	9.79534029993317
2006-04-01	9.97682011533180
2006-07-01	10.37618430269940
2006-10-01	9.94276339684698
2007-01-01	9.64002401319524
2007-04-01	9.63834653263627
2007-07-01	9.28155919260727
2007-10-01	8.76440753924763
2008-01-01	8.30344677548709
2008-04-01	7.79675284270738
2008-07-01	7.74114015807059
2008-10-01	7.86268926937742
2009-01-01	8.43132291621415
2009-04-01	8.28149134147614
2009-07-01	7.86621651279707
2009-10-01	7.81099822573332
2010-01-01	7.27643542787282
2010-04-01	6.95096949331112
2010-07-01	6.57500267632264
2010-10-01	6.15882226378413
2011-01-01	6.18297195079421
2011-04-01	6.06849003478646
2011-07-01	5.95207398239896
2011-10-01	5.66511684334954
2012-01-01	5.71749053047188
2012-04-01	5.65554585486261
2012-07-01	5.31085903643476
2012-10-01	5.36625393416596
2013-01-01	5.45890122271010
2013-04-01	5.61435070542698
2013-07-01	5.37224995099937
2013-10-01	5.11129457835337
2014-01-01	4.89821020303480
2014-04-01	4.65461089736893
2014-07-01	4.86000479445797
2014-10-01	5.00829314900098
2015-01-01	5.67251801729601
2015-04-01	6.39982290470636
2015-07-01	7.42727936540483