4 4 4 4 4 4 4 4 4 4 4 5 5 5 5 6 6 6 5 4 3 3 3 3 3 3 3 3 3 5 7 6.5 4.5 4 2 2 2 2 2 2 2 2 2 3 3 2 2 2 1.5 1.5 1.5 1 1 1 1 2 2 3 2.5 1 5 . 1-2 1-2 1-2 1-2 1-2 1-2 2-3 2-3 2-3 2-3 2-3 2-3 2-3 2-3 2-3 3-4 3-4 3-4 3-4 4-5 4-5 4-5 4-5 4-5 5-6 5-6 5-6 2-3 2-3