condition mean min max 0 h after light 14.12765 13.2572 14.9981 4 h after light 18.15175 16.5269 19.7766 8 h after light 20.340200000000003 18.8594 21.821 4 h after dark 29.9497 28.7065 31.1929 8 h after dark 32.719049999999996 32.4201 33.018 12 h after dark 22.6483 22.0263 23.2703