4 10.5 5 16.3 6 23.3 7 32.5 8 42.2 9 58.7 10 77.9 11 93.7 12 107.4 13 120.1 14 132.3 15 140.6 16 149.7 17 155.6 18 158.1 19 160.6 20 161.4 21 161.6