condition mean min max 3 h after light 11.534733333333334 10.1185 12.3634 6 h after light 8.874726666666668 7.28399 9.97586 9 h after light 11.41301 7.83893 15.661 12 h after light 13.696412500000001 8.41828 21.5319 3 h after dark 18.177799999999998 15.9596 19.6455 6 h after dark 16.9792 16.1045 17.502 9 h after dark 14.032966666666667 11.772 16.1205 12 h after dark 15.3836 12.4632 18.304