$04$ Record the annual rainfall at a given location for $25$ years. Calculate the return period for the different values. Then calculate the annual rainfall at the station corresponding to the return period.

$100$ years

$50$ years old

$\backslash$table$[[$Year$,50,51,52,53,54,55,56,57,58,59,60],[$Rainfall $(cm),113,94\mathrm{.}5,76,87\mathrm{.}5,92\mathrm{.}7,71\mathrm{.}3,77\mathrm{.}3,85\mathrm{.}1,122\mathrm{.}8,69\mathrm{.}4,81],[$Year$,61,62,63,64,65,66,67,68,69,70,71],[$Rainfall $(cm),94\mathrm{.}5,86\mathrm{.}3,68\mathrm{.}6,82\mathrm{.}5,90\mathrm{.}7,99\mathrm{.}8,74\mathrm{.}4,66\mathrm{.}6,65,91,106\mathrm{.}8],[$Year$,72,73,74,,,,,,,,],[$Rainfall $(cm),102\mathrm{.}2,87,84,,,,,,,,]]$