Quarter	Growth rate previous period
2015-04-01	1.141403459435670
2015-07-01	0.498946682413659
2015-10-01	0.521031945856115
2016-01-01	1.392976301244430
2016-04-01	0.969767179091405
2016-07-01	0.462525850210427
2016-10-01	0.398551718820599
2017-01-01	0.838281335297634
2017-04-01	1.085944771951600
2017-07-01	0.951503990178021
2017-10-01	0.182426269382791
2018-01-01	1.365705614567520
2018-04-01	2.694610778443120
2018-07-01	0.320699708454814