Nominal data for Disposable Income Y was translated into real data using GDP Deflator acquired by division of Nominal GDP by the real GDP at 1995 prices. Real data was obtained because it is required in the correct regression analysis which will be used in forecasting model.
Majina data kwa Disposable Mapato Y ilikuwa kutafsiriwa katika data halisi kwa kutumia GDP deflator unaopatikana kwa mgawanyo wa Pato la Taifa wa majina na Pato la Taifa halisi katika 1995 bei. data halisi alikuwa kupatikana kwa sababu ni required katika sahihi regression uchambuzi ambazo zitatumika katika utabiri mfano wa kuigwa.