Did you know? GDP in Sri Lanka (2019) (84 billion USD p/a) is 5 x GDP in Laos (2017) (16.97 billion USD p/a)
Land used for permanent crops in Sudan (2018) (3,460 km^2)
/fact/land-used-for-permanent-crops-in-sudan
Yes, there's now a book based on these numbers. Oxford University Press: July 2018.
Click here to learn more about it.
Click here for Podcast: Andrew Elliott interviewed for New Books Network.