YearPToutPBase 100
201195.69%100
201297.44%100.2
201394.87%100.4
201495.37%100.6
2015100%100.9
201698.52%101.1
201797.43%101.3
201896.52%101.5
201997.03%101.7
202097.44%101.9
202198.96%102.1
Evolution : 2 % entre 2011 et 2021 soit 0.19 % de gain par an.