Quarter	Percent, Seasonally Adjusted
2012-01-01	-4
2012-04-01	-4
2012-07-01	-2
2012-10-01	1
2013-01-01	-3
2013-04-01	-4
2013-07-01	-6
2013-10-01	-8
2014-01-01	-4
2014-04-01	-6
2014-07-01	-8
2014-10-01	-9
2015-01-01	-12
2015-04-01	-13
2015-07-01	-14
2015-10-01	-16
2016-01-01	-16
2016-04-01	-13
2016-07-01	-12
2016-10-01	-15
2017-01-01	-11
2017-04-01	-13
2017-07-01	-11
2017-10-01	-13
2018-01-01	-9
2018-04-01	-10
2018-07-01	-8