\begin{tabular}{|c|c|c|c|c|} \hline Year & Quarter & M4 & M4 & Demand MM2 \\ \hline 1 & 1 & & & \\ \hline & 2 & & & \\ \hline & 3 & & & \\ \hline & 4 & & & \\ \hline 2 & 1 & & & \\ \hline & 2 & & & \\ \hline & 3 & & & \\ \hline & 4 & & & \\ \hline 3 & 1 & & & \\ \hline & 2 & & & \\ \hline & 3 & & & \\ \hline & 4 & & & \\ \hline 4 & 1 & & & \\ \hline \end{tabular} Obtain estimates of quarter relatives for these data using the centered moving average method. (Round all calculations to three decimal points and standardize the final seasonal relatives so their total is four.)