<prompt> Translate the following text to EnglishCBO na Medicare Trustees kwa ujumla kudhani gharama kwa kila mteja kukua kwa Pato la Taifa kwa kila mtu pamoja na 1 asilimia ya hatua kwa muda mrefu.  <response>: Both CBO and the Medicare Trustees generally assume per-beneficiary costs to grow at GDP per capita plus 1 percentage point over the long-term. 