YearPToutPBase 100
201192.66%100
201295.25%100.4
201395.84%100.8
201495.76%101.2
201596.17%101.7
201694.05%102.1
201796.22%102.5
2018100%102.9
201995.8%103.3
202098.54%103.7
202196.97%104.2
Evolution : 4 % entre 2011 et 2021 soit 0.37 % de gain par an.