How many non-gamers have computers that can run JME 3.1?

Are there any stats for all windows computers or something like that? I can
tolerate some people being unable to use it, but, I can’t decide if the 3D
graphics are worth that without knowing , at least approximately, how many
people will get left out.

What do developers of non-game 3D software do? I’m thinking of perhaps
architecture software.