Translate the following English sentence to French:
"However, a survey has been carried out which highlights a factor which I consider to be extremely negative: precisely half the university students who had the right to benefit from the ERASMUS programme did not take up the offer."
On a mené une enquête qui a toutefois mis en avant un aspect que j'estime fort négatif : très exactement la moitié des étudiants qui auraient eu le droit d'utiliser le programme Erasmus ne l'ont pas fait.