This is surprisingly tricky. First time, I was doing great until I guessed Estonia, thinking it would follow the Eastern European trend of being more religious than Western Europe... nope! Second time, I thought Trinidad & Tobago, a Caribbean nation, would surely be majority Christian... nope! I'm not going to bother trying again because I've seen all the answers at this point but the stats are shockingly low if the most guessed answer is at 35%.