condition mean min max 4 h after light 10.0022345 8.933253 11.071216 8 h after light 9.711041999999999 9.087195 10.334889 12 h after light 9.096335 8.707772 9.484898 4 h after dark 10.564411 9.420911 11.707911 8 h after dark 11.9611475 10.653995 13.2683 12 h after dark 9.711702 9.711702 9.711702