I recommend listening to DJ Earworm's mashup of the top song across the world [0] to hear a greater variety of countries, albeit for this or last year.

[0] https://www.youtube.com/watch?v=UDZ78RbAdxU 11 minutes

In fairness to this post, they probably posted as much as they could get easily and consistently. I feel like the same situation reigns for country history in book shops. When I go to a used book store in Queens, New York, I'm not apt to find any books about Jaipur, India. But, if I were to go to Mumbai, India, I could probably find something. So, maybe we should prevail upon or sponsor people in Africa to volunteer their lists.