YearPToutPBase 100
201177.71%100
201299%100.6
201398.89%101.2
2014100%101.9
201599.44%102.5
201698.73%103.1
201796.4%103.7
201896.51%104.3
201997.3%104.9
202095.11%105.6
202196.41%106.2
Evolution : 6 % entre 2011 et 2021 soit 0.55 % de gain par an.