Translate the following English sentence to French:
"At present, the limits vary widely within Europe, from 0.8 in some countries down to 0.2 in Sweden. Sweden' s experience has been very encouraging; a low limit has increased road safety."
À l' heure actuelle, les taux d' alcoolémie autorisés varient considérablement en Europe, oscillant entre 0, 2 pour mille en Suède et 0, 8 pour mille dans certains pays.