To expand his power, Napoleon used these assassination plots to justify the creation of an imperial system based on the Roman model. He believed that a Bourbon restoration would be more difficult if his family's succession was entrenched in the constitution. Launching yet another referendum, Napoleon was elected as Emperor of the French by a tally exceeding 99%. As with the Life Consulate two years earlier, this referendum produced heavy participation, bringing out almost 3.6 million voters to the polls.
About how many voters participated in the election that made Napoleon Emperor of the French?
3.6 million