Quarter	Percent, Seasonally Adjusted
2012-01-01	5
2012-04-01	4
2012-07-01	6
2012-10-01	8
2013-01-01	6
2013-04-01	4
2013-07-01	2
2013-10-01	1
2014-01-01	4
2014-04-01	1
2014-07-01	-1
2014-10-01	-1
2015-01-01	-6
2015-04-01	-6
2015-07-01	-7
2015-10-01	-8
2016-01-01	-8
2016-04-01	-6
2016-07-01	-6
2016-10-01	-7
2017-01-01	-4
2017-04-01	-4
2017-07-01	-4
2017-10-01	-4
2018-01-01	-1
2018-04-01	-3
2018-07-01	-3