YearPToutPBase 100
201297.36%100
201396.69%100.2
201497.33%100.5
201599.1%100.7
201697.91%101
201797.86%101.2
2018100%101.5
201998.52%101.7
202099.05%101.9
202199.51%102.2
202299.1%102.4
Evolution : 2 % entre 2012 et 2022 soit 0.22 % de gain par an.