Self-identifying socialist Sen. Bernie Sanders (I-VT) spent $9 per vote in the New York Democratic primary, while Republican businessman Donald Trump only spent 13 cents per vote, according to the New York Post.

Trump shelled out roughly $67,000 on radio campaign advertisements in the Empire state, while Sanders spent more than $6.8 million on radio and television advertisements.

Hillary Clinton, who defeated Sanders in New York, spent roughly $3.8 million on advertisements, averaging about $3.82 per vote.