Calculate the arithmetic average return, given annual returns of:

Year $19\mathrm{.}40\%$

Year $27\mathrm{.}24\%$

Year $3-13\mathrm{.}72\%$

Year $44\mathrm{.}80\%$

Year $55\mathrm{.}92\%$

Round the answer to two decimals places in percentage form.