<prompt> Translate the following text to SwahiliDuring much of the 1990s the number of active boilermakers had been declining due to very low employment levels resulting from very low activity in the utility power plant construction business.  <response>: Katika miaka ya 1990, idadi ya watengenezaji wa boiler walikuwa wakishuka kwa sababu ya viwango vya chini sana vya ajira kutokana na shughuli ndogo sana katika biashara ya ujenzi wa mitambo ya umeme. 