<prompt> Translate the following text to SwahiliThat is, the effective rates--the actual taxes paid as a proportion of income--on the rich are higher than those on the middle class.  <response>: Yaani, viwango vya ufanisi - kodi halisi kulipwa kama uwiano wa mapato - juu ya matajiri ni ya juu kuliko wale juu ya darasa la kati. 