Problem $6-9$ Spreadsheet Problem: Unbiased Expectations Theory $($LG$6-7)$

Suppose that the current $1-$year rate $(1-$year spot rate$)$ and expected $1-$year T$-$bill rates over the following three years $($i$.$e$.,$ years $2,3,$ and $4,$ respectively$)$ are as follows:

R$11=2\mathrm{.}54\%,$ E$($r$12)=3\mathrm{.}80\%,$ E$($r$13)=4\mathrm{.}30\%,$ E$($r$14)=5\mathrm{.}80\%$

Using the unbiased expectations theory, calculate the current $($long$-$term$)$ rates for one$-,$ two$-,$ three$-,$ and four$-$year$-$maturity Treasury securities$.$

Note: Do not round intermediate calculations. Round your percentage answers to $2$ decimal places $($i$.$e$.,0\mathrm{.}1234$ should be entered as $12\mathrm{.}34).$