The actual demand for a product and the forecasted demand for a product are shown below. Determine the MSE.

$\backslash$table$[[$Month$,\backslash$table$[[$Actual$],[$Demand$]],\backslash$table$[[$Forecasted$],[$Demand$]]],[1,35,33],[2,30,35],[3,26,30],[4,34,26],[5,37,29]]$