Yeah, this sounds like an artifact of some kind of tax shenanigans rather than a real number

Doubt it. Andorra’s official numbers are still under 100k residents even counting the for-tax-purposes residents.

There are for sure not 15k devs there. I’ve been to Andorra and visited a few meetups. They had very few people in attendance.

Yeah, I'm thinking the simpler answer here is that this data is basically trash. Based on some of the other comments in this thread, it really seems like it is not a good quality survey with pretty poor quality control.

It reports fewer agency developers in China than in Andorra. The difference between the two represents 1% of Andorra's total population and 0.7E-4% of China's.