Unfortunately I cannot tell you much more than a Google search will come up with. I studied in France in French, and practiced in France. As for Sweden and Switzerland, off the cuff: Swedes tend to learn English from a very early age and master it frequently; Switzerland is more complex with regions speaking French (with slight variations), Swiss-German (which is not a written language) unofficially and German officially, Italian and more rarely Romansh, and is not an EU member.    
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