condition mean min max 4 h after light 5.862215000000001 5.07774 6.64669 8 h after light 7.42845 7.41268 7.44422 12 h after light 9.006105 8.95913 9.05308 4 h after dark 7.269926666666667 6.4149 7.80323 8 h after dark 8.092256666666668 7.76166 8.32394 12 h after dark 7.56132 6.95931 8.62981