<prompt> Translate the following text to EnglishKifungu cha Mifumo ya Mali isiyohamishika inayomilikiwa na Marekani ulimwenguni kote Summary of Real Property Owned by the United States Throughout the World as of September 30, 1991 ni sehemu ya orodha ya mali isiyohamishika iliyotolewa na Marekani katika mwaka wa 1991.  <response>: lSummary of Real Property Owned by the United States Throughout the World as of September 30, 1991, US General Services Administration Dec. 