Quarter	Percent
1987-09-30	20.4
1987-12-31	18.2
1988-03-31	12.8
1988-06-30	12.7
1988-09-30	18.3
1988-12-31	15.3
1989-03-31	9.6
1989-06-30	11.5
1989-09-30	14.6
1989-12-31	10.2
1990-03-31	5.5
1990-06-30	5.8
1990-09-30	7.6
1990-12-31	7.8
1991-03-31	1.7
1991-06-30	-0.6
1991-09-30	2
1991-12-31	1.7
1992-03-31	-1
1992-06-30	-2.2
1992-09-30	1
1992-12-31	-0.1
1993-03-31	-0.2
1993-06-30	3.6
1993-09-30	7.8
1993-12-31	9.1
1994-03-31	5
1994-06-30	7.5
1994-09-30	13.9
1994-12-31	14.5
1995-03-31	11
1995-06-30	10
1995-09-30	14.7
1995-12-31	17.4
1996-03-31	12.5
1996-06-30	11.9
1996-09-30	20.3
1996-12-31	21.6
1997-03-31	14.2
1997-06-30	14
1997-09-30	16.3
1997-12-31	17.3
1998-03-31	17.2
1998-06-30	15.2
1998-09-30	17.7
1998-12-31	17.7
1999-03-31	13.6
1999-06-30	12.9
1999-09-30	15.6
1999-12-31	16.4
2000-03-31	13.4
2000-06-30	11.9
2000-09-30	12.5
2000-12-31	12.9
2001-03-31	10.3
2001-06-30	11.3
2001-09-30	15.3
2001-12-31	16.8
2002-03-31	14.9
2002-06-30	13
2002-09-30	17.3
2002-12-31	17.7
2003-03-31	12.6
2003-06-30	12.7
2003-09-30	15.7
2003-12-31	13.8
2004-03-31	12
2004-06-30	13.7
2004-09-30	15.7
2004-12-31	14.2
2005-03-31	11.7
2005-06-30	10.9
2005-09-30	10.4
2005-12-31	8.2
2006-03-31	5.3
2006-06-30	5.2
2006-09-30	6.3
2006-12-31	6.1
2007-03-31	3.3
2007-06-30	2.8
2007-09-30	6.6
2007-12-31	7.7
2008-03-31	5
2008-06-30	4.1
2008-09-30	4.8
2008-12-31	3
2009-03-31	0.2
2009-06-30	-0.8
2009-09-30	-1.7
2009-12-31	-1.5
2010-03-31	-2.3
2010-06-30	-3.2
2010-09-30	-1.4
2010-12-31	0.8
2011-03-31	-1.2
2011-06-30	-2.3
2011-09-30	0.7
2011-12-31	0.4
2012-03-31	-2
2012-06-30	-1.4
2012-09-30	2.2
2012-12-31	4.2
2013-03-31	2.6
2013-06-30	2.2
2013-09-30	6.9
2013-12-31	7.8
2014-03-31	4.4
2014-06-30	3.9
2014-09-30	7.9
2014-12-31	9.2
2015-03-31	6.2
2015-06-30	6.2
2015-09-30	10
2015-12-31	11.1
2016-03-31	9.5
2016-06-30	9.3
2016-09-30	11.2
2016-12-31	11.6
2017-03-31	9.2
2017-06-30	8.9
2017-09-30	11.4
2017-12-31	11.4
2018-03-31	7.6
2018-06-30	8.1
2018-09-30	9.8
2018-12-31	7.1
2019-03-31	4.6
2019-06-30	5.4
2019-09-30	7.7
2019-12-31	6.9
2020-03-31	0.2
2020-06-30	-13
2020-09-30	-9.3
2020-12-31	-1.8
2021-03-31	-8
2021-06-30	-2.1
2021-09-30	5.6
2021-12-31	5.3
2022-03-31	4.6
2022-06-30	7.9
2022-09-30	9.6
2022-12-31	6.5
2023-03-31	5.5
2023-06-30	8.5
2023-09-30	10.3
2023-12-31	8.6