What percentage of fat people have hyperthyroidism?

And what percentage just can't control themselves? I live in Las Vegas, the home of the all you can eat buffet. And I've never seen more fat people gorge themselves. I'm sick of fat people being rewarded for being fat. They get handicap spots, ride in rascals that put them at the front of lines and now the Gov't will subsidize their Gastro surgeries! Why should my tax dollars go to pay for someone who can't say no to food?!