Quarter	Growth rate same period previous year
2011-01-01	2.35898686789211
2011-04-01	2.86796520465870
2011-07-01	3.06848601469424
2011-10-01	3.55528093434803
2012-01-01	3.23968395377140
2012-04-01	3.83464264023528
2012-07-01	3.94086266338583
2012-10-01	3.50696798122064
2013-01-01	3.25163791273664
2013-04-01	2.65669450879759
2013-07-01	2.42415729089613
2013-10-01	2.79226218946634
2014-01-01	2.62007662309445
2014-04-01	2.83503375620768
2014-07-01	2.93319774962248
2014-10-01	3.04619090426555
2015-01-01	3.07593637609424
2015-04-01	2.86522039242223
2015-07-01	2.78271709181488
2015-10-01	2.54280405253382
2016-01-01	2.40158256794820
2016-04-01	2.22721214228492
2016-07-01	2.15306361684046
2016-10-01	2.07555882370847
2017-01-01	1.97826087121744
2017-04-01	1.94973702915347
2017-07-01	1.88524874774154
2017-10-01	1.85993506220997
2018-01-01	1.90390229996799
2018-04-01	1.80041615394056
2018-07-01	1.82879496851507