condition mean min max 4 h after light 0.0901274 0.0469818 0.133273 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 4 h after dark 0.0227646 0.0 0.0682938 8 h after dark 0.0 0.0 0.0 12 h after dark 0.07123253333333333 0.0 0.119268