condition mean min max 4 h after light 0.01883335 0.0138238 0.0238429 8 h after light 0.0 0.0 0.0 12 h after light 0.0097833 0.0 0.0195666 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0