Datafolha, 1st round: Lula has 40% against 36% of Flávio Bolsonaro Research Datafolha released on Thursday (24) indicates that 23% of Brazilian voters do not know what the ballot number of the candidate they want to vote for for the Presidency of the Republic. Another 73% answered correctly and 3% cited the wrong number of the candidate they want to vote. Asked about "what number you will type in the electronic ballot to confirm your vote for pr…