condition mean min max 4 h after light 9.418466666666667 4.2387 13.9743 8 h after light 12.49624 2.73502 19.8016 12 h after light 11.36191 6.82383 15.0466 4 h after dark 14.812593333333332 9.89438 17.3969 8 h after dark 15.406369999999999 9.51301 22.0796 12 h after dark 12.321 10.1381 15.1097