I\’m not all that sure about these numbers:
There are approximately 540,000 people with autism in the UK, of which 433,000 are adults who are largely unemployed.
That 540 k number: Just under one in 100 of the population or so. That looks to me like it\’s the number of people with both autism and autism spectrum conditions (like Asperger\’s Syndrome). That fits in with Simon Baron Cohen\’s (the leading researcher in the field) numbers.
Sort of important to note the difference though: Aspie\’s can be as little as being socially not very acute, while "classic" autism goes al the way to not interactinig with the outside world at all.
No, not the most massively important point ever, just an example of the way in which numbers can be expanded to make a case.