YearPToutPBase 100
201196.95%100
201296.19%100.3
201395.06%100.7
201496.65%101
201598.26%101.3
201697.46%101.7
2017100%102
201899.19%102.3
201997.86%102.7
202098.98%103
202198.71%103.3
Evolution : 3 % entre 2011 et 2021 soit 0.30 % de gain par an.