condition mean min max 0 h after light 15.10065 14.7571 15.4442 4 h after light 14.07215 13.8617 14.2826 8 h after light 11.27545 10.5463 12.0046 4 h after dark 15.5325 13.5195 17.5455 8 h after dark 14.1959 14.0533 14.3385 12 h after dark 14.76765 13.7346 15.8007