—and actually a Condorcet preferential. To give an example, with five candidates you get a point for every time you are chosen ahead of another candidate. A first-choice ballot would be worth four points, because they came ahead of four people. The second would be three; the third, two; the fourth, one; and the fifth one would be zero. That could affect the way people vote. People could vote for their first choice.
The votes are of equal value. If you look at this vote, with five members, the vote is worth 10 points, which is four plus three plus two plus one. If a person were to vote just first choice, and many people like to do that, then that's four out of 10 points gone. There are six points left to split among the other four candidates. If they pick first and last, then there would be only three, and they get two points each instead of one and a half.