Based Spain, China (See Below), Madagascar and Belgium
(Thanks to @Sea_Gull for bringing this map to my attention!)
Edit: Since this used Google data, China is notably missing here, but if a commenter on a random Nintendo fan site covering this is to be believed:
"I'm currently living in China and I can say first hand people LOVE psyduck and slowpoke. they're in memes and KFC toys and everything"
China stay winning.
Not one pokemon outside the original 151? :thinking-about-it:
It's possible maybe they didn't bother searching for Pokemon past that.
Though honestly, I bet even if they had the results probably wouldn't have changed much overall, since I think Gen 1 likely is the most iconic and recognizable to people by a significant margin.
considering half these are just that a name is an actual word in a different language, i doubt at least one country wouldnt have newer pokemon if they included them
In the article they say they only looked at the original 151.