WEEK NUMBER \begin{tabular}{lcccccc} \cline { 2 - 6 } & 0 & 1 & 2 & 3 & 4 & 5 \\ \hline Gross requirements & & & 75 & & 50 & 70 \\ On-hand & 40 & & & & & \\ Net requirements & & & & & & \\ Planned-order receipts & & & & & & \\ Planned-order releases & & & & & & \\ \hline \end{tabular}