YearPToutPBase 100
201093.41%100
201194.04%100.3
201296.69%100.6
201394.15%100.9
201493.99%101.2
201596.78%101.5
201695.86%101.8
201796.86%102.1
201897.05%102.4
201994.8%102.7
202094.05%103
2021100%103.3
Evolution : 3 % entre 2010 et 2021 soit 0.27 % de gain par an.