YearPToutPBase 100
201186.33%100
201285.37%100.3
201386.69%100.6
201486.04%100.9
201587.9%101.2
201688.27%101.5
201786.98%101.7
2018100%102
201994.43%102.3
202088.34%102.6
202189%102.9
202289.23%103.2
202384%103.5
Evolution : 3 % entre 2011 et 2023 soit 0.26 % de gain par an.