YearPToutPBase 100
201192.3%100
201293.16%100.5
201396.4%101
201497.55%101.4
201598.32%101.9
201683.43%102.4
201794.12%102.9
201897.57%103.3
2019100%103.8
202097.23%104.3
Evolution : 4 % entre 2011 et 2020 soit 0.42 % de gain par an.