condition mean min max 3 h after light 0.19613933333333333 0.0 0.588418 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.39815775 0.0 1.09833 3 h after dark 0.0 0.0 0.0 6 h after dark 0.288997 0.0 0.866991 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0