condition mean min max 4 h after light 0.0073463 0.0 0.0146926 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.006915533333333334 0.0 0.0207466