condition mean min max 0 h after light 0.04889525 0.0 0.0977905 4 h after light 0.04820805 0.0 0.0964161 8 h after light 0.0497724 0.0 0.0995448 4 h after dark 0.0962325 0.0960427 0.0964223 8 h after dark 0.0963115 0.0 0.192623 12 h after dark 0.095532 0.0 0.191064