Quarter	Percent
1998-04-01	10.16776281081840
1999-04-01	9.43015603562542
2000-04-01	9.22782649955382
2001-04-01	8.56038703556180
2002-04-01	8.91999114136869
2003-04-01	8.99649506750912
2004-04-01	9.17582630132458
2005-01-01	9.33639252446517
2005-04-01	8.86327312733510
2005-07-01	8.61800981206051
2005-10-01	8.77740435023464
2006-01-01	8.88069190517186
2006-04-01	8.11040023232415
2006-07-01	7.85401845809100
2006-10-01	7.82078954527507
2007-01-01	7.74451522337903
2007-04-01	7.02520799743925
2007-07-01	6.84998941837890
2007-10-01	6.86725688961679
2008-01-01	7.05205249631796
2008-04-01	6.76729744761239
2008-07-01	6.72919149882444
2008-10-01	7.28686304106493
2009-01-01	8.65628067244440
2009-04-01	8.73231163716128
2009-07-01	8.86983492343914
2009-10-01	9.23476555031878
2010-01-01	10.01708700244200
2010-04-01	9.46690957312189
2010-07-01	9.18446401848357
2010-10-01	9.44432619056680
2011-01-01	9.83332695930865
2011-04-01	9.32333034453686
2011-07-01	9.37371689350774
2011-10-01	9.89672371646292
2012-01-01	10.59175354867780
2012-04-01	10.25074043249140
2012-07-01	10.18286436561310
2012-10-01	10.67626392204030
2013-01-01	11.38618907105230
2013-04-01	10.79637143896050
2013-07-01	10.48106060762290
2013-10-01	10.62383605736210
2014-01-01	10.99158941819920
2014-04-01	10.13110929672500
2014-07-01	9.75100147568641
2014-10-01	9.97106792804377
2015-01-01	10.13196924453950
2015-04-01	9.46192319076604
2015-07-01	8.93537124654576
2015-10-01	9.04844823293289
2016-01-01	9.16799708162634
2016-04-01	8.55044512624587
2016-07-01	8.20599847726336
2016-10-01	8.23636634512134
2017-01-01	8.29545955963465
2017-04-01	7.58579198483734
2017-07-01	7.32061625620199
2017-10-01	7.28772778327950
2018-01-01	7.40743450543126
2018-04-01	6.78928118488994