YearPToutPBase 100
201094.38%100
201195.06%100.6
201295.42%101.1
201396.12%101.7
201496.13%102.3
201598.24%102.9
2016100%103.4
201799.14%104
201898.69%104.6
201999.58%105.1
202098.71%105.7
Evolution : 5 % entre 2010 et 2020 soit 0.51 % de gain par an.