<prompt> Translate the following text to EnglishWakati tunaweza kufurahia ziada za kila mwaka kwa muda fulani, makadirio ya muda mrefu yanaonyesha mwendelezo wa muundo wa upungufu unaojitokeza baada ya mawimbi ya idadi ya watu yanayotarajiwa.  <response>: While we may enjoy annual surpluses for some time, longterm projections show a resumption of a pattern of deficits emerging after the anticipated demographic tidal wave hits. 