<prompt> Translate the following text to SwahiliAs shown in table 4.2, how much the couples 4,000 annual contribution adds to national saving that year depends on 1 how much their IRA tax deduction costs the government and 2 whether their contributions represent new saving or were shifted from existing assets.  <response>: Kama inavyoonyeshwa katika Jedwali 4.2, kiasi cha mchango wa kila mwaka wa wanandoa wa 4,000 huongeza kwa akiba ya kitaifa mwaka huo hutegemea 1 kiasi cha ushuru wao wa IRA unaoathiri serikali na 2 ikiwa michango yao inawakilisha akiba mpya au ilihamishwa kutoka kwa mali zilizopo. 