<prompt> Translate the following text to EnglishKuelezea uchambuzi wetu wote kama sehemu ya Pato la Taifa hutoa mfumo thabiti wa kumbukumbu kwa kulinganisha hisa za uchumi kwa Marekani na kwa kulinganisha viwango vya kuokoa vya Marekani na zile za nchi nyingine.  <response>: Expressing all of our analysis as a share of GDP provides a consistent frame of reference for comparing economywide shares for the United States and for comparing U.S. saving rates to those of other countries. 