Quarter	Percent
1996-03-31	5.9552
1996-06-30	5.8482
1996-09-30	5.6445
1996-12-31	6.0314
1997-03-31	6.0403
1997-06-30	6.3076
1997-09-30	6.9184
1997-12-31	7.2063
1998-03-31	7.256
1998-06-30	7.2714
1998-09-30	7.3375
1998-12-31	6.4277
1999-03-31	5.2235
1999-06-30	4.9543
1999-09-30	4.976
1999-12-31	5.3998
2000-03-31	5.9365
2000-06-30	5.9639
2000-09-30	5.8924
2000-12-31	5.7565
2001-03-31	5.4845
2001-06-30	5.0804
2001-09-30	4.8005
2001-12-31	3.9651
2002-03-31	3.8982
2002-06-30	3.9808
2002-09-30	3.8456
2002-12-31	3.8084
2003-03-31	3.6356
2003-06-30	3.4688
2003-09-30	3.4046
2003-12-31	3.7485
2004-03-31	4.0042
2004-06-30	4.3849
2004-09-30	4.7252
2004-12-31	4.7138
2005-03-31	4.7501
2005-06-30	4.7261
2005-09-30	4.4778
2005-12-31	4.4493
2006-03-31	4.4229
2006-06-30	4.521
2006-09-30	4.7355
2006-12-31	5.0517
2007-03-31	5.3821
2007-06-30	5.612
2007-09-30	5.8433
2007-12-31	5.6154
2008-03-31	5.1742
2008-06-30	5.0541
2008-09-30	5.1334
2008-12-31	2.7734
2009-03-31	0.8657
2009-06-30	0.608
2009-09-30	0.4398
2009-12-31	0.4527
2010-03-31	0.5083
2010-06-30	0.5234
2010-09-30	0.5328
2010-12-31	0.5531
2011-03-31	0.6026
2011-06-30	0.5798
2011-09-30	0.5392
2011-12-31	0.504
2012-03-31	0.4667
2012-06-30	0.4592
2012-09-30	0.4384
2012-12-31	0.4308
2013-03-31	0.4435
2013-06-30	0.4545
2013-09-30	0.4507
2013-12-31	0.4361
2014-03-31	0.433
2014-06-30	0.4387
2014-09-30	0.4864
2014-12-31	0.4905
2015-03-31	0.498
2015-06-30	0.5338
2015-09-30	0.5561
2015-12-31	0.5768
2016-03-31	0.5792
2016-06-30	0.5544
2016-09-30	0.3451
2016-12-31	0.3021
2017-03-31	0.3028
2017-06-30	0.2732
2017-09-30	0.2849
2017-12-31	0.4609
2018-03-31	0.5175
2018-06-30	0.5767