How much should cats weigh?

Here are the normal weights for the 6 most common cat breeds(in pounds):
Siamese 5-10
Persian 10-11
Maine Coon 8-10
Domestic Shorthair 8-10
Domestic Medium-hair 8-10
Domestic Longhair 8-10


According to the Pet Obesity Prevention study, what does the average cat in these top 6 breeds actually weigh?

Siamese 11.2
Persian 8.4
Maine Coon 12.7
Domestic Shorthair 11.7
Domestic Medium-hair 11.8
Domestic Longhair 12