Bank managers are looking through their loan portfolio. One car loan requires monthly payments. The contractual interest rate was $6\mathrm{.}37\%($annually$),$ but the customer's interest rate today would be $7\mathrm{.}20\%.$ The remaining maturity for the loan is $24$ months $(2$ years and $0$ months$).$ The principal amount outstanding is $$32,257.$ What is the Macauley $($D$)$ duration of this loan? Please respond to the nearest $100$th of a year $($for instance $4\mathrm{.}67-$ two decimal places$).$