You$$ve observed the following returns on Pine Computer$$s stock over the past five years: $16$ percent, $16$ percent, $18$ percent, $28$ percent, and $10$ percent. Suppose the average inflation rate over this period was $2\mathrm{.}1$ percent and the average T$-$bill rate over the period was $4\mathrm{.}2$ percent. What was the average nominal risk premium on the company$$s stock?