condition mean min max 3 h after light 0.0147689 0.0 0.0443067 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.034025 0.0 0.102075 3 h after dark 0.016840933333333332 0.0 0.0505228 6 h after dark 0.0128866 0.0 0.0386598 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0