30 8.2 5.2 60 8.3 5.4 90 8.1 5.3 120 7.5 5.3 150 7.8 5.4 180 7.3 5.5 210 7.2 5.7 240 6.8 5.6 270 6.2 5.5 300 6.1 5.7