YearPToutPBase 100
201095.4%100
201195.71%100.4
201292.01%100.9
201396.23%101.3
201499.08%101.7
201598.73%102.1
201699.05%102.6
201795.87%103
201895.32%103.4
201998.62%103.9
2020100%104.3
202199.5%104.7
Evolution : 4 % entre 2010 et 2021 soit 0.38 % de gain par an.