(2 + 4 + 1 + 1 + 1 + 1.5 + (8/12) + 2 + (8/12) + 1.5 + 5 + (5/12) + 3 + (2/12) + 1 + (1/12) + (10/12) + 1 + (5/12) + 1.5 + 1.5 + 1 + (11/12) + 1 + (1/12) + 2 + 1 + (11/12)) / 20