Quarter	Percent
1996-03-31	5.94
1996-06-30	5.66
1996-09-30	5.8
1996-12-31	6.4
1997-03-31	6.34
1997-06-30	6.705
1997-09-30	7.1
1997-12-31	7.335
1998-03-31	7.245
1998-06-30	7.575
1998-09-30	6.765
1998-12-31	5.485
1999-03-31	4.825
1999-06-30	4.815
1999-09-30	5.445
1999-12-31	5.875
2000-03-31	6.145
2000-06-30	5.975
2000-09-30	5.915
2000-12-31	5.61
2001-03-31	5.125
2001-06-30	5.15
2001-09-30	4.225
2001-12-31	3.92
2002-03-31	4.175
2002-06-30	4.155
2002-09-30	3.745
2002-12-31	3.795
2003-03-31	3.405
2003-06-30	3.385
2003-09-30	3.615
2003-12-31	3.995
2004-03-31	4.345
2004-06-30	4.805
2004-09-30	4.795
2004-12-31	4.745
2005-03-31	4.845
2005-06-30	4.545
2005-09-30	4.395
2005-12-31	4.405
2006-03-31	4.5
2006-06-30	4.545
2006-09-30	5.145
2006-12-31	5.26
2007-03-31	5.555
2007-06-30	5.94
2007-09-30	5.675
2007-12-31	5.285
2008-03-31	4.9
2008-06-30	5.31
2008-09-30	4.775
2008-12-31	1.205
2009-03-31	0.715
2009-06-30	0.615
2009-09-30	0.425
2009-12-31	0.535
2010-03-31	0.535
2010-06-30	0.545
2010-09-30	0.565
2010-12-31	0.605
2011-03-31	0.745
2011-06-30	0.585
2011-09-30	0.53
2011-12-31	0.475
2012-03-31	0.475
2012-06-30	0.445
2012-09-30	0.435
2012-12-31	0.445
2013-03-31	0.445