condition mean min max 4 h after light 51.3939 50.5037 52.2841 8 h after light 25.6358 24.9632 26.3084 12 h after light 21.53705 21.4173 21.6568 4 h after dark 23.030099999999997 22.4835 23.5767 8 h after dark 35.87535 34.9349 36.8158 12 h after dark 42.0136 41.9002 42.127