<prompt> Translate the following text to EnglishUtaratibu huu ni mkubwa sana, na USPS inashughulikia asilimia 41 ya kiasi cha barua ulimwenguni, zaidi ya mataifa sita yanayofuata pamoja.  <response>: The size of the operation is immense-- USPS handles 41 percent of the worlds mail volume , more than the next six nations combined. 