YearPToutPBase 100
201185.09%100
201286.32%100.5
201393.71%101
201491.1%101.5
2015100%102.1
201697.06%102.6
201791.66%103.1
201895.13%103.6
201980.42%104.1
202093.49%104.6
202197.51%105.1
Evolution : 5 % entre 2011 et 2021 soit 0.45 % de gain par an.