Given the following past returns for a stock:

$2018,+15\%$

$2019,+18$

$2020,+30$

$2021,-20$

$2022,+10$

This stock's expected return is:

$10\mathrm{.}00$

$53\mathrm{.}00\%$

$10\mathrm{.}60$

$18\mathrm{.}15$

$13\mathrm{.}25$