<prompt> Translate the following text to EnglishKwa kushangaza, katika mwaka wa 1997, asilimia 69 ya waliohojiwa walisema kwamba wanasoma au kutazama barua za matangazo ya biashara, na asilimia 60 walisema kwamba zinawafaa au zinavutia.  <response>: Surprisingly, in 1997, 69 percent of the respondents said that they read or look at advertising mail, and 60 percent said that they find it useful or interesting. 