YearPToutPBase 100
201098.06%100
201189.07%100.2
201295.37%100.3
201395.95%100.5
201491.55%100.7
201592.53%100.8
201696.06%101
2017100%101.1
201897.05%101.3
201997.96%101.5
202092.15%101.6
202195.68%101.8
202295.28%102
Evolution : 2 % entre 2010 et 2022 soit 0.15 % de gain par an.