condition mean min max 0 h after light 7.988645 7.13175 8.84554 4 h after light 6.127815 6.02701 6.22862 8 h after light 4.76211 4.14839 5.37583 4 h after dark 4.51462 3.00184 6.0274 8 h after dark 8.737115 7.69283 9.7814 12 h after dark 5.872350000000001 5.63998 6.10472