condition mean min max 4 h after light 4.286615 3.93833 4.6349 8 h after light 3.4631100000000004 3.39488 3.53134 12 h after light 3.36307 3.27303 3.45311 4 h after dark 4.151036666666666 4.02872 4.24179 8 h after dark 4.392006666666667 4.12124 4.59927 12 h after dark 4.03228 3.68216 4.21883