<prompt> Translate the following text to SwahiliTraditionally, real estate has represented households largest asset; while the total value of households real estate holdings grew by 50 percent over the 1990s, real estate steadily declined as a share of households total assets from 31 percent in 1990 to 23 percent in 1999.  <response>: Kwa kawaida, mali isiyohamishika imekuwa mali kubwa ya kaya; wakati thamani ya jumla ya mali isiyohamishika ya kaya iliongezeka kwa asilimia 50 katika miaka ya 1990, mali isiyohamishika ilipungua kwa kasi kama sehemu ya mali ya jumla ya kaya kutoka asilimia 31 mwaka 1990 hadi asilimia 23 mwaka 1999. 