YearPToutPBase 100
2009100%100
201087.3%100.3
201194.3%100.7
201289.55%101
201389.32%101.3
201492.99%101.7
201594.6%102
201696.24%102.4
201789.29%102.7
201894.76%103
201996.87%103.4
202097.81%103.7
202195.79%104
Evolution : 4 % entre 2009 et 2021 soit 0.30 % de gain par an.