Use the following returns for X and Y$.$

Year Returns

X Y

$121\mathrm{.}9\%26\mathrm{.}7\%$

$216\mathrm{.}93\mathrm{.}9$

$39\mathrm{.}928\mathrm{.}7$

$419\mathrm{.}814\mathrm{.}8$

$54\mathrm{.}932\mathrm{.}7$

a Calculate the average returns for X and Y