Very interesting but the obvious problem is that if dominaguide.net has some bias then it will skew the results.
Thank you!
Yes, I agree, that's why I said it wasn't that much of a "research".
Though, I think it is relevant. I do have some knowledge of the pro world, and I could have guessed countries like UK, Germany or UAE in the top 5, because it only makes sense!
Also, I didn't mention it on my article by I checked some others directories just briefly, and they showed the same proportions than dominaguide.
I also checked on Google for the Norway mystery and still the same.
I think you can probably switch ranks from 2/3 positions higher or lower for some countries, but not more

My only real precaution would be with Russia. They still are pretty much isolated even in Europe, and I wouldn't be surprise if they had their own large directory and not encline to use the worldwide ones.