Complex answer: indie hackers were first and used to be most common, now dwarfed by organized crime. Cyber agencies will always be a minority, but they'll all be APT (instead of low-hanging fruit drive-by); full balance on foreign vs. domestic TBD.
Advanced Persistent Threat: a targeted attack by a well-funded adversary. Used to be uncommon (most were attacks of opportunity at easy targets), getting increasingly common now.