Absolutely no way is this correct.
I've just pulled my wife and her 3 mates (all teachers) over to the screen to read that and they are all laughing.
You have got to have missed something out from that cut & paste.
Think about it, do you think you could walk up an average street in Britain, knock on the door and find that 30% of that street have got a degree or higher?
I can take you to areas where they haven't got a cycling proficiency certificate between them which means that other areas must be near a 100% degree rate.
Surely that's got to be something like 30% of people who went to Higher Education (College and further) ended up with a degree or equivalent.
Exaclty I could go to many areas of town and in over 1000+ homes none off the parents have school education and none of the children even go to school. NOw accordign to this it means there must be areas of town were all parents have degrees and all there kids do well at school.
I think poverty/working class/unemployment far outnumbers the educated/academic population