YearPToutPBase 100
201195.3%100
201293.91%100.5
201388.58%101
201496.09%101.5
2015100%102
201698.24%102.5
201797.88%103
201897.33%103.4
201997.74%103.9
202097.46%104.4
202197.07%104.9
Evolution : 4 % entre 2011 et 2021 soit 0.44 % de gain par an.