<prompt> Translate the following text to SwahiliThey are not so substantial when considered in the context of the total Postal Service expenditure in 1993 of 48 billion.  <response>: Kwa mujibu wa ripoti hiyo, gharama za huduma za posta nchini Marekani zimepungua kwa kiasi kikubwa kutokana na gharama za huduma za posta zilizotumika mwaka 1993 ambazo zilikuwa dola bilioni 48. 