condition mean min max 0 h after light 11.1341 0.0 22.2682 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 21.9314 0.0 43.8628 12 h after dark 5.5596 0.0 11.1192