The current zero$-$coupon yield curve of semi$-$annually compounded rates for riskfree bonds is as follows:

$\backslash$table$[[$MATURITY$,0\mathrm{.}5$ Years,$1\mathrm{.}0$ Years,$1\mathrm{.}5$ Years,$2\mathrm{.}0$ Years,$2\mathrm{.}5$ Years,$3\mathrm{.}0$ Years,$3\mathrm{.}5$ Years,$4\mathrm{.}0$ Years$],[$Yield $($APR$),2\mathrm{.}00\%,3\mathrm{.}40\%,5\mathrm{.}00\%,7\mathrm{.}20\%,9\mathrm{.}80\%,10\mathrm{.}80\%,11\mathrm{.}40\%,12\mathrm{.}20\%$