condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0375442 0.0 0.0590087 12 h after light 0.0 0.0 0.0 3 h after dark 0.0 0.0 0.0 6 h after dark 0.037595333333333335 0.0 0.112786 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0