Quarter	Percent
1998-01-01	5.5300
1998-04-01	2.1200
1998-07-01	3.6100
1998-10-01	7.4900
1999-01-01	5.5800
1999-04-01	4.6700
1999-07-01	6.8900
1999-10-01	3.0700
2000-01-01	3.3900
2000-04-01	3.2100
2000-07-01	3.3800
2000-10-01	3.3000
2001-01-01	4.3900
2001-04-01	7.5700
2001-07-01	5.5800
2001-10-01	5.8800
2002-01-01	3.6600
2002-04-01	3.1200
2002-07-01	2.9900
2002-10-01	3.1200
2003-01-01	2.8600
2003-04-01	3.1200
2003-07-01	3.4700
2003-10-01	3.5100
2004-01-01	3.8100
2004-04-01	3.1600
2004-07-01	3.8100
2004-10-01	3.9200
2005-01-01	2.5800
2005-04-01	2.4400
2005-07-01	2.9200
2005-10-01	2.8300
2006-01-01	3.0800
2006-04-01	3.2700
2006-07-01	3.1800
2006-10-01	2.6700
2007-01-01	3.9000
2007-04-01	4.2000
2007-07-01	8.4700
2007-10-01	5.3700
2008-01-01	3.6700
2008-04-01	3.6300
2008-07-01	3.8600
2008-10-01	8.0100
2009-01-01	3.2600
2009-04-01	17.4400
2009-07-01	1.9800
2009-10-01	1.4600
2010-01-01	1.2200
2010-04-01	1.1000
2010-07-01	0.6700
2010-10-01	0.5000
2011-01-01	0.4400
2011-04-01	0.4200
2011-07-01	0.4100
2011-10-01	0.4300
2012-01-01	0.4200
2012-04-01	0.4200
2012-07-01	0.1900
2012-10-01	0.1500
2013-01-01	0.1400
2013-04-01	0.1400
2013-07-01	0.1200
2013-10-01	0.1200
2014-01-01	0.1919
2014-04-01	0.0758
2014-07-01	0.0066
2014-10-01	-0.0301
2015-01-01	-0.0504
2015-04-01	-0.1185
2015-07-01	-0.1357
2015-10-01	-0.1990
2016-01-01	-0.2877
2016-04-01	-0.3325
2016-07-01	-0.3430
2016-10-01	-0.3504
2017-01-01	-0.3535
2017-04-01	-0.3587
2017-07-01	-0.3581
2017-10-01	-0.3423
2018-01-01	-0.3639
2018-04-01	-0.3618
2018-07-01	-0.3627