condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0289986 0.0 0.0869958 9 h after light 0.0 0.0 0.0 12 h after light 0.02412265 0.0 0.0964906 3 h after dark 0.035486333333333335 0.0 0.106459 6 h after dark 0.03300826666666667 0.0 0.053038 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0