YearPToutPBase 100
201186.29%100
201287.4%101.6
201385.43%103.2
201490.06%104.9
2015100%106.5
201698.6%108.1
201799.3%109.7
201899.67%111.3
201997.42%112.9
202099.38%114.6
202196.94%116.2
Evolution : 16 % entre 2011 et 2021 soit 1.37 % de gain par an.