<prompt> Translate the following text to EnglishPicha ya 20 inaonyesha maombi ya Congress kama asilimia ya kazi ya GAO kutoka mwaka wa fedha 1992 hadi mwaka wa fedha 1999.  <response>: Figure 20 shows congressional requests as a percentage of GAOs work from fiscal year 1992 through fiscal year 1999. 