[Suicide Junkie]

There is an entry in Settings.txt, I believe, that specifies "population per facility".

It was intended to be used to specify fow many facilities could be run by the population available.
One problem is in deciding which facilities would be operated, and it is a tough one. Do they run the spaceport? probably, but what if it is a backup (two in one system?) Is the Radioactives collider more important than the Organics farm?

In any case, it has not been implemented in SE4, yet.