condition mean min max 4 h after light 14.8305585 10.690036 18.971081 8 h after light 10.521389 10.290138 10.75264 12 h after light 10.262652 10.18632 10.338984 4 h after dark 9.464866 8.788467 10.141265 8 h after dark 9.3178895 8.700949 9.93483 12 h after dark 9.880391 9.880391 9.880391