translate English to French: There has been an overall decline between 2001, where the numbers of teenage pregnancies for girls under 18 was 343, and 2004, where the number of teenage pregnancies for girls under 18 was 295).
Le nombre de grossesses précoces chez les filles de moins de 18 ans a diminué dans l'ensemble, passant de 343 en 2001 à 295 en 2004.