Opinion on CGFR across the world?

I came across this data on Cross-Gender Friending Ratio across the world.For those who don't know what it means Cross-Gender Friending Ratio refers to the proportion of friendships a person has with the opposite gender compared to their own gender. India and some muslim countries have low ratio,it might be due to the cultural and societal background of those countries.And we all know what will happen if u talk to an opposite gender in our kochu keralam.What's your take on it ?