Quarter	Index source base
2010-01-01	89.7476745236160
2010-04-01	89.8047277160661
2010-07-01	89.9758872934164
2010-10-01	90.7866431861284
2011-01-01	91.9427210331437
2011-04-01	92.8675833107559
2011-07-01	93.8825295764472
2011-10-01	94.6782714711460
2012-01-01	97.9843538336494
2012-04-01	97.4948974984196
2012-07-01	96.7862367921972
2012-10-01	96.1946852704777
2013-01-01	97.1195475480899
2013-04-01	97.3837939131220
2013-07-01	97.3928023119299
2013-10-01	97.7681522622596
2014-01-01	99.1674568770884
2014-04-01	99.6298880158945
2014-07-01	99.8550979860923
2014-10-01	100.0803079562900
2015-01-01	99.9466666666667
2015-04-01	99.5900000000000
2015-07-01	100.0900000000000
2015-10-01	100.3566666666670
2016-01-01	99.9733333333333
2016-04-01	99.7866666666667
2016-07-01	99.6000000000000
2016-10-01	99.6100000000000
2017-01-01	99.7400000000000
2017-04-01	100.1433333333330
2017-07-01	100.1100000000000
2017-10-01	99.9600000000000
2018-01-01	98.8066666666666
2018-04-01	98.8966666666667
2018-07-01	99.8666666666667