Translate the following English sentence to French:
"There are most certainly a number of countries which are better off, which boast sound growth figures and where the first signs of prosperity are visible, but there are also countries where the situation has dramatically changed for the worse."
Il est certain qu' un certain nombre de pays arrivent à tirer leur épingle du jeu, connaissent la croissance et commencent à prospérer, mais il y a également des pays au sein desquels la situation s' est détériorée de façon dramatique.