Year	2015 = 100
2011	139.0443951138
2012	147.1811712437
2013	124.4495005502
2014	118.7376117974
2015	100
2016	93.4615133476
2017	95.8993275399
2018	114.7124110453
2019	95.3868250873
2020	79.0056799577
2021	78.7073186719