Quarter	Percent
1987-03-31	11
1987-06-30	4.1
1987-09-30	3.9
1987-12-31	6.3
1988-03-31	12.6
1988-06-30	11
1988-09-30	7.3
1988-12-31	9.4
1989-03-31	14.3
1989-06-30	8.5
1989-09-30	6.4
1989-12-31	4.6
1990-03-31	7
1990-06-30	1.7
1990-09-30	3.8
1990-12-31	1.8
1991-03-31	2.9
1991-06-30	-5.3
1991-09-30	-4.5
1991-12-31	-1.3
1992-03-31	-1.2
1992-06-30	-1.9
1992-09-30	-4.5
1992-12-31	-0.2
1993-03-31	-3.6
1993-06-30	-3.5
1993-09-30	-2.6
1993-12-31	-5.9
1994-03-31	-3.1
1994-06-30	-2.5
1994-09-30	-2.3
1994-12-31	-4.2
1995-03-31	1.3
1995-06-30	1.6
1995-09-30	-2.2
1995-12-31	-6.9
1996-03-31	2.2
1996-06-30	-4
1996-09-30	-3.2
1996-12-31	-7.8
1997-03-31	3.4
1997-06-30	-1.3
1997-09-30	-4.7
1997-12-31	-2.4
1998-03-31	8.4
1998-06-30	1.5
1998-09-30	2.6
1998-12-31	-2.1
1999-03-31	9.4
1999-06-30	-3.2
1999-09-30	2.5
1999-12-31	-1.8
2000-03-31	15.7
2000-06-30	3.6
2000-09-30	9.6
2000-12-31	1.6
2001-03-31	15
2001-06-30	2.2
2001-09-30	5.2
2001-12-31	-3.6
2002-03-31	6
2002-06-30	0.9
2002-09-30	4.6
2002-12-31	0.9
2003-03-31	10.2
2003-06-30	-1.9
2003-09-30	0.7
2003-12-31	-3.6
2004-03-31	10.6
2004-06-30	-3.8
2004-09-30	6.5
2004-12-31	2
2005-03-31	12
2005-06-30	2.4
2005-09-30	1.3
2005-12-31	-5.8
2006-03-31	9.8
2006-06-30	-3.5
2006-09-30	13.4
2006-12-31	-9.6
2007-03-31	7.8
2007-06-30	6.1
2007-09-30	10.9
2007-12-31	1.6
2008-03-31	11
2008-06-30	0.7
2008-09-30	3
2008-12-31	-1
2009-03-31	1.7
2009-06-30	-6.4
2009-09-30	-1.7
2009-12-31	-7.8
2010-03-31	-1.3
2010-06-30	-1.9
2010-09-30	-2.5
2010-12-31	-1.5
2011-03-31	-1.3
2011-06-30	-3.2
2011-09-30	0.8
2011-12-31	-0.8
2012-03-31	-0.7
2012-06-30	-2.4
2012-09-30	-0.8
2012-12-31	-2.2
2013-03-31	0.3
2013-06-30	-4.1
2013-09-30	0.2
2013-12-31	-4.5
2014-03-31	0.7
2014-06-30	-3.5
2014-09-30	1.7
2014-12-31	-5.8
2015-03-31	1.3
2015-06-30	-2.1
2015-09-30	0
2015-12-31	-6
2016-03-31	3.6
2016-06-30	-0.6
2016-09-30	2.4
2016-12-31	-2.2
2017-03-31	4.2
2017-06-30	-1.9
2017-09-30	1.6
2017-12-31	-3.5
2018-03-31	3
2018-06-30	-2.3
2018-09-30	-1
2018-12-31	-3
2019-03-31	4.2
2019-06-30	-0.9
2019-09-30	0.9
2019-12-31	-3.6
2020-03-31	12.6
2020-06-30	10.6
2020-09-30	0.5
2020-12-31	-2.3
2021-03-31	0.8
2021-06-30	-3.2
2021-09-30	-2.6
2021-12-31	-1.5
2022-03-31	2.9
2022-06-30	-4.1
2022-09-30	-1.5
2022-12-31	-4.3
2023-03-31	0.5
2023-06-30	-1.3
2023-09-30	0
2023-12-31	-1.5