What was the difference between those households owning no pets and those owning four or more?

The pie graph below shows the results of a community survey. Homeowners were asked to report how many pets they owned.


4 or more pets 8%, no pets 12%, 3 pets 16%, 1 pet 36%, 2 pets 28%|||the difference is 4%... i guess im in that 8% category :S i have 4 cats.|||Those owning 4 or more spend more on pet food and vet bills|||its louder