Quarter	Percent
1996-03-31	5.9386
1996-06-30	5.872
1996-09-30	5.6631
1996-12-31	6.1705
1997-03-31	6.2175
1997-06-30	6.4683
1997-09-30	7.0368
1997-12-31	7.2832
1998-03-31	7.24
1998-06-30	7.2558
1998-09-30	7.2549
1998-12-31	6.152
1999-03-31	5.0745
1999-06-30	4.9361
1999-09-30	5.0421
1999-12-31	5.6598
2000-03-31	6.1534
2000-06-30	6.1016
2000-09-30	5.9701
2000-12-31	5.7817
2001-03-31	5.3748
2001-06-30	5.0569
2001-09-30	4.7919
2001-12-31	3.9473
2002-03-31	4.0352
2002-06-30	4.1786
2002-09-30	3.8802
2002-12-31	3.802
2003-03-31	3.5709
2003-06-30	3.4026
2003-09-30	3.4243
2003-12-31	3.9019
2004-03-31	4.1227
2004-06-30	4.5697
2004-09-30	4.8522
2004-12-31	4.7443
2005-03-31	4.793
2005-06-30	4.7199
2005-09-30	4.4138
2005-12-31	4.44
2006-03-31	4.4283
2006-06-30	4.5881
2006-09-30	4.8275
2006-12-31	5.1369
2007-03-31	5.4935
2007-06-30	5.7344
2007-09-30	5.8975
2007-12-31	5.5426
2008-03-31	5.0444
2008-06-30	5.0517
2008-09-30	5.1375
2008-12-31	2.5897
2009-03-31	0.8445
2009-06-30	0.6593
2009-09-30	0.4615
2009-12-31	0.4668
2010-03-31	0.531
2010-06-30	0.5468
2010-09-30	0.5466
2010-12-31	0.5676
2011-03-31	0.7002
2011-06-30	0.6453
2011-09-30	0.5485
2011-12-31	0.5136
2012-03-31	0.4737
2012-06-30	0.4563
2012-09-30	0.413
2012-12-31	0.4215
2013-03-31	0.4334