<prompt> Translate the following text to EnglishTofauti nyingine kati ya bajeti ya umoja na vipimo vya NIPA hutokea kwa sababu NIPA inazingatia mapato ya sasa na uzalishaji ndani ya Marekani.  <response>: Other differences between the unified budget and NIPA measures arise because NIPA focuses on current income and production within the United States. 