This is the source:
https://thetoyzone.com/the-most-popular-pokemon-around-the-world>To determine the most popular Pokémon in each country for the maps, we used Google Search volume data to identify the Pokémon ranked highest above the global search average.>To determine the most popular Pokémon for the poster, we identified the global search volume for each Pokémon. Data on Google search volume came from the Ahrefs Keyword Explorer tool and was collected on February 2021.So they've inputted every Pokemon (probably only the original 151) and picked the one that deviated from the average the most, NOT the one that was searched the most.
Still more believable than GameFreak's official, totally not manipulated poll to prove their shilled shitmon are actually popular.
