condition mean min max 0 h after light 22.641 22.3447 22.9373 4 h after light 7.859565 7.85704 7.86209 8 h after light 7.36692 7.00813 7.72571 4 h after dark 9.376885000000001 9.18791 9.56586 8 h after dark 8.40259 8.3753 8.42988 12 h after dark 12.027004999999999 8.97951 15.0745