2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 4 4 4 4 4 5 5 5 5 6 6 7 7 1 1 1 1 . 5 7.5 8.5 2.5 2.5 2.5 3 4 4 3 3 2.5 0.5 0.5 1