The table below shows the closing monthly stock prices for IEM and Amazon. Calculate the simple three-month moving average for each month for both companies. (Input all amounts as positive values. Do not round intermediate calculations. Round your answers to 2 decimal places.) \begin{tabular}{|l|l|l|} \hline & \multicolumn{1}{|c|}{ IBM } & AMZN \\ \hline March & & \\ \hline April & & \\ \hline May & & \\ \hline June & & \\ \hline July & & \\ \hline August & & \\ \hline September & & \\ \hline October & & \\ \hline November & & \\ \hline December & & \\ \hline \end{tabular}