What is the expected return on a portfolio that is equally weighted between Stocks $M$ and $N$ given the following information?

$\backslash$table$[[$State of Economy,$\backslash$table$[[$Probability of State of$],[$Economy$]],$Rate of Return if State Occurs,$],[,,$Stock M$,$Stock N$],[$Boom$,0\mathrm{.}13,0\mathrm{.}18,-0\mathrm{.}14],[$Normal$,0\mathrm{.}82,0\mathrm{.}06,0\mathrm{.}06],[$Recession$,0\mathrm{.}05,-0\mathrm{.}14,0\mathrm{.}18],[5\mathrm{.}28\%,,,],[5\mathrm{.}87\%,,,],[6\mathrm{.}00\%,,,],[6\mathrm{.}32\%,,,]]$

$6\mathrm{.}40\%$