translate English to French: Since the combined income of rich countries is around $25 trillion per year, this would mobilize $25 billion per year which, when combined with the poor countries' own increased contributions, would dramatically improve the health conditions of the world's low-income countries.
Etant donné que les revenus combinés des pays riches avoisinent 25 trillions de dollars par an, cette opération mobiliserait 25 billions de dollars par an qui, combinés aux propres contributions accrues des pays pauvres, amélioreraient considérablement les conditions de santé des pays à faibles revenus.