It does make sense that the word "Bitcoin" has been Googled the most by the El Salvadorian people, because their government forced a law on them that included a technology that influenced their daily lives and that most of them knew virtually nothing about.

It is also not strange that the Nigerians are very curious about this technology, because Nigeria are perceived as the "Scam Capitol" of the world. We know Bitcoin's pseudo anonymity provide some hiding place for criminal activities, so some of these people are actively looking for a payment method that cannot be traced.