A stock generated the following returns over the last five years: $10\%,12\mathrm{.}5\%,14\mathrm{.}6\%,17\%,$ and $18\mathrm{.}9\%.$ Calculate the geometric average return of the stock. $($Round your answer to four decimals.$)$Multiple choice question$\mathrm{.}15\mathrm{.}82\%15\mathrm{.}87\%14\mathrm{.}56\%13\mathrm{.}25\%$