condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.024927 0.0 0.074781 9 h after light 0.0 0.0 0.0 12 h after light 0.07049975 0.0 0.281999 3 h after dark 0.0 0.0 0.0 6 h after dark 0.0 0.0 0.0 9 h after dark 0.101912 0.0 0.192703 12 h after dark 0.43791199999999997 0.26969 0.606134