condition mean min max 4 h after light 13.505745000000001 11.776665 15.234825 8 h after light 15.710891499999999 14.515109 16.906674 12 h after light 14.0175925 13.297299 14.737886 4 h after dark 15.012539499999999 14.254896 15.770183 8 h after dark 14.651565000000002 14.515109 14.788021 12 h after dark 12.664535 12.664535 12.664535