Quarter	Index source base
2006-04-01	141.4427157
2006-07-01	141.1598303
2006-10-01	141.0183876
2007-01-01	141.1598303
2007-04-01	141.7256011
2007-07-01	141.3012730
2007-10-01	140.5940594
2008-01-01	140.4526167
2008-04-01	141.1598303
2008-07-01	139.6039604
2008-10-01	139.0381895
2009-01-01	138.8967468
2009-04-01	139.8868458
2009-07-01	139.6039604
2009-10-01	138.7553041
2010-01-01	137.6237624
2010-04-01	137.0579915
2010-07-01	136.9165488
2010-10-01	137.9066478
2011-01-01	136.7751061
2011-04-01	135.0777935
2011-07-01	130.2687412
2011-10-01	125.6011315
2012-01-01	125.3182461
2012-04-01	122.2065064
2012-07-01	120.2263083
2012-10-01	117.8217822
2013-01-01	116.2659123
2013-04-01	115.8415842
2013-07-01	114.9929279
2013-10-01	114.5685997
2014-01-01	113.1541726
2014-04-01	112.1640736
2014-07-01	110.6082037
2014-10-01	108.2036775
2015-01-01	108.0622348
2015-04-01	106.3649222
2015-07-01	105.5162659
2015-10-01	104.6676096
2016-01-01	105.0919378
2016-04-01	104.8090523
2016-07-01	104.2432815
2016-10-01	102.9702970
2017-01-01	101.8387553
2017-04-01	100.0000000
2017-07-01	98.7270156
2017-10-01	97.2000000
2018-01-01	97.1000000
2018-04-01	95.1000000
2018-07-01	93.4000000