condition mean min max 3 h after light 0.018878966666666667 0.0 0.0566369 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 3 h after dark 0.0 0.0 0.0 6 h after dark 0.013732166666666665 0.0 0.0411965 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0