Year	2015 = 100
2011	143.4532977779
2012	145.0113208125
2013	141.3117461451
2014	136.5026206838
2015	100
2016	88.2919900845
2017	100.2427434543
2018	116.0152086168
2019	110.1125852819
2020	90.8868694561
2021	122.9302520366