condition mean min max 4 h after light 47.1 47.1 47.1 8 h after light 67.45 55.4 79.5 12 h after light 91.55000000000001 80.4 102.7 4 h after dark 84.75 70.2 99.3 8 h after dark 49.95 40.3 59.6 12 h after dark 64.85 40.0 89.7