Index for winter, Spring, summer, and fall PLEASE!

Attendance at Orlando's newest Disneylike attraction, Lego World, has been as follows: Based on the given attendance, the seasonal indices for each of the seasons are (round your responses to three decimal places): Based on the given attendance, the seasonal indices for each of the seasons are (round your responses to three decimal places): \begin{tabular}{lc} \hline Season & Index \\ \hline Winter & \end{tabular}