Quarter	Percent
1993-06-30	1.3
1993-09-30	1.4
1993-12-31	1.3
1994-03-31	1.2
1994-06-30	1.4
1994-09-30	1.5
1994-12-31	1.2
1995-03-31	1
1995-06-30	1.1
1995-09-30	1.1
1995-12-31	0.8
1996-03-31	0.9
1996-06-30	1.2
1996-09-30	1.3
1996-12-31	1.3
1997-03-31	1.3
1997-06-30	1.5
1997-09-30	1.6
1997-12-31	1.3
1998-03-31	1.1
1998-06-30	1.5
1998-09-30	1.8
1998-12-31	1.3
1999-03-31	1.5
1999-06-30	2.1
1999-09-30	2.4
1999-12-31	2
2000-03-31	1.8
2000-06-30	2.2
2000-09-30	2.1
2000-12-31	1.9
2001-03-31	1.9
2001-06-30	2.5
2001-09-30	2.8
2001-12-31	2.4
2002-03-31	2.4
2002-06-30	3.2
2002-09-30	3.6
2002-12-31	3.4
2003-03-31	3
2003-06-30	3.4
2003-09-30	4
2003-12-31	3.8
2004-03-31	3.1
2004-06-30	3.5
2004-09-30	3.4
2004-12-31	2.4
2005-03-31	2
2005-06-30	2.7
2005-09-30	2.8
2005-12-31	2.6
2006-03-31	2.3
2006-06-30	2.9
2006-09-30	3
2006-12-31	2.8
2007-03-31	2.4
2007-06-30	2.6
2007-09-30	2.7
2007-12-31	2
2008-03-31	1.4
2008-06-30	1.1
2008-09-30	0.6
2008-12-31	0.3
2009-03-31	0
2009-06-30	0.2
2009-09-30	0.4
2009-12-31	0.4
2010-03-31	0.1