Of course the table is misleading; Osborne has pledged a £9 "living wage" simply in order to trump Labour's £8. £9 = €11.50
And you can't seriously be asking that question when you've lived in France - especially Hollande's France! The chances of anyone - without family contacts - landing any job here in Southern Europe are totally nil, and if you work for "the family" any legal minimum wage is a cruel joke. Notice that Italy, the continental EU's third largest economy (on paper), doesn't even feature in that table.
Those aren't the only factors of course, language is a big pull too. Something else the IN'ers don't want to discuss is that virtually all those Muslims in Germany don't speak German and have no intention of learning German, but they do speak really good English. When Merkel gives them their EU citizenship guess where they will be headed? Ditto the Turks.