YearPToutPBase 100
201191.24%100
201295.89%100.4
201395.51%100.7
201495.66%101.1
201596.79%101.5
201697.01%101.8
201799.57%102.2
2018100%102.5
201999.45%102.9
202098.64%103.3
202196.5%103.6
202294.87%104
Evolution : 4 % entre 2011 et 2022 soit 0.33 % de gain par an.