Fill in the missing information in the following table. Assume that Portfolio AB is $60$ percent invested in Stock A$.$ Note: A negative value should be indicated by a minus sign. Do not round intermediate calculations. Enter your answers as a percent rounded to $2$ decimal places.

$\backslash$table$[[$Annual Returns on Stocks A and B$],[$Year$,$Stock A$,,$Stock B$,,$Portfolio AB$],[2018,14\mathrm{.}0,\%,22\mathrm{.}0,\%,\%],[2019,34\mathrm{.}2,\%,-33\mathrm{.}8,\%,\%],[2020,-15\mathrm{.}4,\%,43\mathrm{.}8,\%,\%],[2021,24\mathrm{.}6,\%,17\mathrm{.}4,\%,\%],[2022,15\mathrm{.}8,\%,28\mathrm{.}2,\%,\%],[$Average return,,$\%,,\%,\%],[$Standard deviation,,$\%,,\%,\%]]$