You have the following market information: the risk$-$free rate of return is $3\mathrm{.}66\%$ and the market return is $7\mathrm{.}89\%.$ Your $60/40$ model portfolio has the following statistics: a portfolio return of $7\mathrm{.}68\%,$ a standard deviation of $5\mathrm{.}22\%,$ and a beta of $1\mathrm{.}17.$ What is the Sharpe ratio for this portfolio?