YearPToutPBase 100
201194.97%100
201294.68%100.4
201392.03%100.8
201492.64%101.2
2015100%101.6
201699.03%102
201798.02%102.4
201898.58%102.8
201996.31%103.2
202096.42%103.6
202197.38%104
Evolution : 4 % entre 2011 et 2021 soit 0.36 % de gain par an.