<prompt> Translate the following text to SwahiliDue to this rationalization of delivery cost in the U.S., the postal densities of the most sparsely populated areas are higher than the densities of the most sparsely populated areas of France.  <response>: Kwa sababu ya uhalali huu wa gharama za utoaji nchini Marekani, wiani wa posta wa maeneo yenye watu wachache zaidi ni juu kuliko wiani wa maeneo yenye watu wachache zaidi ya Ufaransa. 