Assuming state size would be a second cut variable, New York (1 percent), California (3 percent), Ohio (6 percent), and Texas (15 percent) could be one group to study, while Kansas (less than 1 percent), Massachusetts, (2 percent), Oklahoma (6 percent), and Arizona (9 percent) could form a second group of smaller states.
The first group is composed of four states and the second group is four states as well.
California is bigger than New York and thus receives a lower percentage point.