YearPToutPBase 100
201093.95%100
201194.19%100.6
201294.16%101.2
201393.82%101.8
201493.99%102.4
201595.25%103.1
201694.69%103.7
201796.66%104.3
201899.85%104.9
2019100%105.5
202097.1%106.1
Evolution : 6 % entre 2010 et 2020 soit 0.54 % de gain par an.