How many streamers make a living?

I'm curious to know, just how prevalent is it for streamers to actually make a sustainable living from their online content? Are we talking about a select few who have managed to break through and achieve financial stability, or is this a viable career path for a broader range of individuals? It would be fascinating to understand the dynamics at play here, from the number of streamers who are able to support themselves solely through their streaming activities, to the challenges they face in doing so.