YearPToutPBase 100
201192.67%100
201293.11%100.7
201393%101.4
201493.02%102.1
201593.19%102.8
201692.85%103.5
201792.94%104.2
201893.6%104.9
201997.25%105.6
202098.17%106.3
2021100%107
Evolution : 7 % entre 2011 et 2021 soit 0.62 % de gain par an.