Month	Percent, Seasonally adjusted
1997-12-31	23.1
1998-01-31	37.9
1998-02-28	31.3
1998-03-31	14.6
1998-04-30	21
1998-05-31	11.6
1998-06-30	12.2
1998-07-31	17.9
1998-08-31	11.1
1998-09-30	16.7
1998-10-31	1.5
1998-11-30	-5.7
1998-12-31	-3.1
1999-01-31	0
1999-02-28	18.3
1999-03-31	9.4
1999-04-30	15
1999-05-31	2.7
1999-06-30	20
1999-07-31	3.2
1999-08-31	18.5
1999-09-30	-3.4
1999-10-31	6.9
1999-11-30	7
1999-12-31	24.8
2000-01-31	14.1
2000-02-29	9.7
2000-03-31	19.2
2000-04-30	22.2
2000-05-31	29.5
2000-06-30	11
2000-07-31	14.9
2000-08-31	27.5
2000-09-30	17
2000-10-31	23.2
2000-11-30	10.2
2000-12-31	30
2001-01-31	17.1
2001-02-28	11.5
2001-03-31	13.3
2001-04-30	5.1
2001-05-31	5.6
2001-06-30	6.2
2001-07-31	16.2
2001-08-31	18.7
2001-09-30	-2.3
2001-10-31	3.2
2001-11-30	-6
2001-12-31	0
2002-01-31	0.8
2002-02-28	0.6
2002-03-31	3.6
2002-04-30	-6.6
2002-05-31	0
2002-06-30	10
2002-07-31	5.4
2002-08-31	-0.3
2002-09-30	9.7
2002-10-31	21.3
2002-11-30	27.7
2002-12-31	-5.5
2003-01-31	-8.2
2003-02-28	-7
2003-03-31	3.4
2003-04-30	14.3
2003-05-31	10.3
2003-06-30	11.1
2003-07-31	4.4
2003-08-31	-4.6
2003-09-30	3.2
2003-10-31	12.4
2003-11-30	24.3
2003-12-31	21.2
2004-01-31	21.2
2004-02-29	11.3
2004-03-31	14.9
2004-04-30	12.4
2004-05-31	19.8
2004-06-30	15.6
2004-07-31	15.3
2004-08-31	23.2
2004-09-30	23.5
2004-10-31	17.4
2004-11-30	15.3
2004-12-31	18
2005-01-31	16.8
2005-02-28	18.4
2005-03-31	12.7
2005-04-30	8.5
2005-05-31	10.5
2005-06-30	2.8
2005-07-31	17.9
2005-08-31	5.9
2005-09-30	19
2005-10-31	12.4
2005-11-30	3.4
2005-12-31	17.3
2006-01-31	21.3
2006-02-28	52.1
2006-03-31	41.5
2006-04-30	54.5
2006-05-31	42
2006-06-30	44
2006-07-31	22
2006-08-31	21.9
2006-09-30	2.7
2006-10-31	2.7
2006-11-30	11.9
2006-12-31	10.1
2007-01-31	27.1
2007-02-28	20.1
2007-03-31	34
2007-04-30	20.6
2007-05-31	35.7
2007-06-30	25.2
2007-07-31	29.9
2007-08-31	27
2007-09-30	39.8
2007-10-31	24
2007-11-30	16.2
2007-12-31	14.2
2008-01-31	30.9
2008-02-29	21.1
2008-03-31	19.9
2008-04-30	32.3
2008-05-31	24.2
2008-06-30	47.1
2008-07-31	44.7
2008-08-31	77.5
2008-09-30	63.8
2008-10-31	77.8
2008-11-30	67.2
2008-12-31	79
2009-01-31	46.8
2009-02-28	51.8
2009-03-31	36
2009-04-30	17.5
2009-05-31	3.4
2009-06-30	-14.7
2009-07-31	-8.1
2009-08-31	-7.6
2009-09-30	11.6
2009-10-31	29.2
2009-11-30	20
2009-12-31	2.6
2010-01-31	-4.8
2010-02-28	-4.1
2010-03-31	4.3
2010-04-30	-11.3
2010-05-31	-4.7
2010-06-30	-5.3
2010-07-31	-6
2010-08-31	-17.2
2010-09-30	-11.1
2010-10-31	9.4
2010-11-30	10.8
2010-12-31	-15.3
2011-01-31	-24.9
2011-02-28	-15.2
2011-03-31	4.6
2011-04-30	12.5
2011-05-31	6.5
2011-06-30	5.4
2011-07-31	-7.4
2011-08-31	0.7
2011-09-30	-4
2011-10-31	-12.5
2011-11-30	-22.2
2011-12-31	-22.7
2012-01-31	-18.6
2012-02-29	-21.4
2012-03-31	-24.6
2012-04-30	-14.6
2012-05-31	-10
2012-06-30	-18.2
2012-07-31	-24.3
2012-08-31	-20.8
2012-09-30	-3
2012-10-31	2.2
2012-11-30	4.9
2012-12-31	19.8
2013-01-31	12.9
2013-02-28	7.6
2013-03-31	-16.2
2013-04-30	-13.7
2013-05-31	-12.6
2013-06-30	-9.5
2013-07-31	-8
2013-08-31	1.8
2013-09-30	9.8
2013-10-31	0.9
2013-11-30	-5.1
2013-12-31	-24.3
2014-01-31	-21.5
2014-02-28	-23.5
2014-03-31	-31.3
2014-04-30	-35.2
2014-05-31	-35.9
2014-06-30	-11.5
2014-07-31	1
2014-08-31	-1
2014-09-30	-5.7
2014-10-31	-13
2014-11-30	-16
2014-12-31	-11.8
2015-01-31	-11.9
2015-02-28	-8.6
2015-03-31	-6.6