I agree that this is a good thing to add to the poll but I've always had a funny feeling about the importance of experience in programming. Some people learn faster than others and can get 10 years' worth of (average) experience in 5. I think that a more accurate metric would be to find out how many different situations, defined as working with different platforms, languages, markets and libraries, a person has been in. This would probably need to be coupled with the person's IQ to guesstimate how much they gain from each change.