http://www.theyworkforyou.com/
Anna Soubry (Broxtowe, Conservative) asked the parliamentary question and the full answer is at the link above.
So far just over a thousand cases were reported in England and Wales but non of the cases aquired abroad have been taken out of the total yet..
It's all so non-representative if what's really happening. And how can we believe we have less than 1/ 250th of the number seen in Germany?