condition mean min max 4 h after light 153.4865 133.054 173.919 8 h after light 151.155 138.595 163.715 12 h after light 150.1745 145.023 155.326 4 h after dark 194.93533333333335 190.926 200.342 8 h after dark 262.897 224.902 291.524 12 h after dark 187.638 166.942 202.839