condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0059069 0.0 0.0177207 4 h after dark 0.0497849 0.0 0.118283 8 h after dark 0.015530533333333332 0.0 0.0465916 12 h after dark 0.0 0.0 0.0