YearPToutPBase 100
201194.78%100
201294.71%100.3
201397%100.6
201496.95%100.9
2015100%101.3
201697.66%101.6
201797.97%101.9
201899.51%102.2
201998.75%102.5
202097.44%102.8
202197.58%103.1
Evolution : 3 % entre 2011 et 2021 soit 0.28 % de gain par an.