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	4
1993-09-30	8.3
1993-12-31	9.4
1994-03-31	5.6
1994-06-30	8.4
1994-09-30	14.5
1994-12-31	14.8
1995-03-31	11.6
1995-06-30	11.2
1995-09-30	15.4
1995-12-31	17.7
1996-03-31	13.3
1996-06-30	13.2
1996-09-30	21
1996-12-31	21.7
1997-03-31	15
1997-06-30	15.2
1997-09-30	16.8
1997-12-31	17.4
1998-03-31	17.8
1998-06-30	16.2
1998-09-30	18.1
1998-12-31	17.7
1999-03-31	14.2
1999-06-30	14
1999-09-30	16.1
1999-12-31	16.3
2000-03-31	14.1
2000-06-30	13.4
2000-09-30	13.4
2000-12-31	13.1
2001-03-31	11.4
2001-06-30	13
2001-09-30	16
2001-12-31	16.7
2002-03-31	15.7
2002-06-30	14.3
2002-09-30	17.4
2002-12-31	17.3
2003-03-31	13.5
2003-06-30	13.9
2003-09-30	15.9
2003-12-31	13.6
2004-03-31	12.6
2004-06-30	14.6
2004-09-30	15.8
2004-12-31	13.9
2005-03-31	12
2005-06-30	11.8
2005-09-30	11
2005-12-31	8.5
2006-03-31	6.3
2006-06-30	6.5
2006-09-30	7
2006-12-31	6.3
2007-03-31	4.7
2007-06-30	5.2
2007-09-30	7.7
2007-12-31	7.7
2008-03-31	6.7
2008-06-30	6.8
2008-09-30	6
2008-12-31	3.4
2009-03-31	2.4
2009-06-30	2.8
2009-09-30	0.7
2009-12-31	-0.5
2010-03-31	0.4
2010-06-30	1.1
2010-09-30	1
2010-12-31	1.3
2011-03-31	1.4
2011-06-30	2.5
2011-09-30	3.6
2011-12-31	1.3
2012-03-31	1
2012-06-30	3.8
2012-09-30	4.8
2012-12-31	5.3
2013-03-31	5.7
2013-06-30	7
2013-09-30	8.8
2013-12-31	7.9
2014-03-31	7.7
2014-06-30	10
2014-09-30	10.9
2014-12-31	9.5
2015-03-31	9.6
2015-06-30	11.8
2015-09-30	12.2
2015-12-31	10.7
2016-03-31	11.7
2016-06-30	14
2016-09-30	13.1
2016-12-31	10.9
2017-03-31	11.3
2017-06-30	13.5
2017-09-30	13.2
2017-12-31	10.8
2018-03-31	10.4
2018-06-30	13.2
2018-09-30	12.3
2018-12-31	8.1
2019-03-31	8.5
2019-06-30	11.2
2019-09-30	10.6
2019-12-31	7.6
2020-03-31	5.4
2020-06-30	-0.4
2020-09-30	0.3
2020-12-31	4
2021-03-31	1.4
2021-06-30	6
2021-09-30	9.4
2021-12-31	6.6
2022-03-31	8.1
2022-06-30	12.6
2022-09-30	11.7
2022-12-31	7.5
2023-03-31	8.7