YearPToutPBase 100
201195.08%100
201298.76%100.3
201397.53%100.6
201496.64%100.9
201597.33%101.2
201697.06%101.4
201798.45%101.7
2018100%102
201998.61%102.3
202098.88%102.6
202198.88%102.9
Evolution : 2 % entre 2011 et 2021 soit 0.26 % de gain par an.