condition mean min max 4 h after light 5.938095000000001 3.97928 7.89691 8 h after light 1.612005 0.0 3.22401 12 h after light 2.611475 0.0 5.22295 4 h after dark 3.441595 0.0 6.88319 8 h after dark 6.006005 5.17404 6.83797 12 h after dark 1.69794 0.0 3.39588