Ho Big Is Your Iguana?

I was just curious to see how big people's captive iguanas actually get. I was doing research for pictures of people's iguanas and none of them even compare to mine at the age he is. Mine's name is Louie, he turned four in September, he's 6 feet long and weighs in at about 17 pounds. Also, I've read about the orange on their arms meaning it's breeding season. Mine has orange all year around and I'm pretty sure he's not in breeding season 365 days out of the year because he's very docile a majority of the time. He's my boy. Anyways, can any of you compare?