The fish processing facility takes raw fish as input and transforms it into the final product. Upon arrival raw fish is stored in the freezer with capacity R tons. Fish is a highly perishable food which needs proper preservation, and the storage cost is HKD 2,000 per month per ton. The raw fish is seasonal, that is, the arrival rate of raw fish depends on the time of year, which is given as follows: Assume that the storage capacity of the freezer is infinite, i.e., R=. Draw inventory buildup diagram for the freezer. What is the annual storage cost