10% make more than 10,000 a month. Nice! And that is only 16 makers who reported this, and only for 2024–2025. I was too lazy to scan past years, but I will do.
It's a very biased sample, only projects that are in "indie maker", that are probably close to small full time projects that get promoted everywhere than reals side project.
I'm not sure if dead or abandoned project that don't report $0 are counted.