We struggle greatly to actually understand population numbers in many countries. Consider Afghanistan, where the numbers were in part made up until recently[0]. I really wish we could see more background on these numbers.
So they actually won’t hit 40m in a few decades? That’s hopeful
I’ve read that Nigerian census data is straight up made up since there’s a demographic war between the north and south and more population = more political power so there’s a strong incentive to “find” people