$13.$ a bond has maturity of $3$ years and coupon rate of $3\mathrm{.}60\%.$ the price is $97\mathrm{.}99.$ the six month T$-$bill rate is $3\mathrm{.}6\%.$ the one year T$-$bill rate is $3\mathrm{.}65\%.$ The rate for discounting a $1\mathrm{.}5$ year zero is $3\mathrm{.}7\%.$ the $2\mathrm{.}5$ year spot rate is $4\mathrm{.}19\%$ and the three year spot rate is $4\mathrm{.}34.$ what is the two year spot rate? $($round to nearest asis point$)$