For each length, give the five countries with the most unusual names. "Most unusual" here means "least similar, on average, to the names of other countries," with similarity measured by minimum edit distance.
A brief explanation of "minimum edit distance" can be found in the instructions to this quiz.
For those that are curious, the two ten-letter countries that both have an average distance of 9.415 do represent a genuine tie, not two different values that happened to round to the same number.