Year	2015 = 100
2011	107.6070549736
2012	109.4086035116
2013	109.3581705014
2014	109.1554207416
2015	100
2016	95.6176518745
2017	98.4192403935
2018	100.4128073917
2019	100.0698537314
2020	95.2515134044
2021	100.2957399259