condition mean min max 4 h after light 103.2 103.2 103.2 8 h after light 62.75 57.8 67.7 12 h after light 60.0 38.3 81.7 4 h after dark 57.95 42.2 73.7 8 h after dark 53.85 34.5 73.2 12 h after dark 103.1 83.9 122.3