The Walker Mine Extracted the Following Tons of Coal for the Year

Short Answer

The Walker Mine extracted the following tons of coal for the year: $$\begin{array} { l l l l } \text { January } & 160 & \text { July } & 560 \\\text { February } & 220 & \text { August } & 420 \\\text { March } & 380 & \text { September } & 340 \\\text { April } & 410 & \text { October } & 220 \\\text { May } & 530 & \text { November } & 150 \\\text { June } & 600 & \text { December } & 95\end{array}$$ What was the median tonnage for the year?