condition mean min max 0 h after light 0.4149305 0.233467 0.596394 2 h after light 0.7009415 0.488826 0.913057 4 h after light 0.2744739 0.0531458 0.495802 8 h after light 0.334892 0.111985 0.557799 12 h after light 1.081741 0.925712 1.23777 2 h after dark 1.0946265 0.849623 1.33963 4 h after dark 0.637148 0.625322 0.648974 8 h after dark 0.6926025 0.47047 0.914735 12 h after dark 0.624437 0.612255 0.636619