<prompt> Translate the following text to EnglishKwa upande mwingine, takwimu za chini za msingi za utafiti wa miji sita ni za juu zaidi kuliko zile za msingi wa seti za data za ACS zilizosambazwa kwa wingi.  <response>: Some have noted that the less robust estimates based on the Six-Cities Study are significantly higher than those based on the more broadly distributed ACS data sets. 