5 10 32.4 51.3 5 20 41.7 60.3 5 30 48.8 64.1 10 10 40.7 59.1 10 20 44.6 63.2 10 30 52.4 72.9 15 10 48.1 68.8 15 20 50.9 69.2 15 30 58.7 76.5