I think it was 1 point for a yellow, and three for a red. Two yellows = red was three points if I recall correctly (so that a player who gets two yellows would earn less points than one who gets a yellow and then a straight red).
I think it was 1 point for a yellow, and three for a red. Two yellows = red was four points if I recall correctly (one point for the first yellow, and the second yellow counting as though it was a straight red.