Quarter	Growth rate previous period
2015-04-01	0.325266896523259
2015-07-01	0.419641657246745
2015-10-01	-1.298707144738090
2016-01-01	0.336804136187624
2016-04-01	1.151355968687070
2016-07-01	-0.437739734404793
2016-10-01	-1.294593087405040
2017-01-01	-0.246168625749707
2017-04-01	2.175368139223560
2017-07-01	-2.063544055027840
2017-10-01	-0.568561872909703
2018-01-01	1.042717793474610
2018-04-01	-0.366178428761644
2018-07-01	-0.668225860340810