The numbers here are incorrect. An update with immigration figures for E-2s in Daejeon over the past few years is here.
The Daejeon City Journal reports that according to a survey by the Daejeon Seobu Education Office, as of November there are 375 foreign instructors working at 105 hagwons there, up from 169 at the end of last year, an increase of 206. As well, at the end of 2010 there were only 105, meaning the number of foreign instructors has increased three times in the past two years. It states that this increase is due to hagwons trying to satisfy the demands of parents for foreign instructors, and projects further increases.
All I have to say to that is that it seems odd that there would be such a jump foreign instructors in Daejeon at this time; I would have though the days of such increases would be past. Or perhaps it's due to development in western Daejeon? Does anyone have any ideas? I'd rather not believe that NoCut News' nonsensical article from early 2011 about illegal native speaking teachers descending on Daejeon to escape new regulations in Seoul was true...