Quarter	Index source base
2011-07-01	100.00000000
2011-10-01	100.15602360
2012-01-01	100.44174280
2012-04-01	100.59298580
2012-07-01	100.60682120
2012-10-01	101.28526640
2013-01-01	101.63416600
2013-04-01	100.26328600
2013-07-01	103.50797880
2013-10-01	104.41819420
2014-01-01	104.26077070
2014-04-01	103.52817490
2014-07-01	103.90789720
2014-10-01	101.42691650
2015-01-01	102.39842660
2015-04-01	101.23549590
2015-07-01	98.80189421
2015-10-01	102.49097310
2016-01-01	97.81709746
2016-04-01	98.12655652
2016-07-01	98.13490885
2016-10-01	99.76003361
2017-01-01	100.47077920
2017-04-01	99.93818777
2017-07-01	100.55381170
2017-10-01	103.19542160
2018-01-01	103.85302660
2018-04-01	105.19117310
2018-07-01	106.95392880