You have funds invested in a mutual fund of S&P $500$ stocks. Over the last $5$ years, the annual percent returns of the S&P $500$ are $19\mathrm{.}94\%,6\mathrm{.}66\%,29\mathrm{.}30\%,16\mathrm{.}68\%,$ and $14\mathrm{.}91\%.$

What is the average annual percent return on the S&P $500$ stocks over the last $5$ years?

Note: Round your answer to $2$ decimal places.