Of course many of the original countries have both. However you are ignoring many exception in both directions, there are a number of countries with nuclear weapons but not nuclear power, and the other way around also.
So 9 countries have nuclear weapons. Of those, 2 don't use civilian nuclear power, that's 22%.
You have 32 countries with civilian nuclear power, that means 25 with no nuclear weapons. These 25 are literally distributed over all 5 continents. That is 80%.
And notably non of the 9 with nuclear weapons have primarily used civilian nuclear power to bootstrap the bomb.
So the data you provided is literally proving my point.
> Though note that they, too, seem to phase out the usage, though. Switzerland is planning it's phase out too, AFAIK.
That really has nothing to do with what we are talking about. But it was one of the worst votes in Swiss history. The campaign was totally based on absolutely absurd argument and driven by pure demagoguery. And we are not actively shutting down, we have just decided not to build anything new.