Based on economists' forecasts and analysis, one$-$ye$$r Treasury bill rates and liquidity premiums for the next four years are expected to be as follows:

${?}_1{R}_1=0\mathrm{.}508$

$E(2r_1)=0\mathrm{.}758,L_2=0\mathrm{.}078$

$E(3r_1)=0\mathrm{.}858,L_3=0\mathrm{.}168$

$E{(}_4{r}_1)=1\mathrm{.}158,L_4=0\mathrm{.}178$

Calculate the yield to maturity for four years. $($Round your percentage answers to $2$ decimal places. $($e$.$g$.,32\mathrm{.}16))$

$\backslash$table$[[,$Yield To Maturity$],[$Year $1,,\%$