condition mean min max 4 h after light 137.9 137.9 137.9 8 h after light 169.05 165.2 172.9 12 h after light 124.05000000000001 52.8 195.3 4 h after dark 173.75 158.9 188.6 8 h after dark 141.85 72.1 211.6 12 h after dark 112.0 86.9 137.1