condition mean min max 4 h after light 0.09597 0.0 0.19194 8 h after light 0.078435 0.0 0.15687 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.3528435 0.247675 0.458012 12 h after dark 0.212661 0.175662 0.24966