I'm trying to determine the size of the market of "fine artists" or "creating artists" in the US (painters, sculptors etc.). The issue I have is the following: I'm able to find numbers of professional or semi-professional artists (artist that make money from their works and are somehow registered) but I don't know how I can determine the number of "hobby-" or "amateur artists" that eg. paint just for fun.
It's basically equal to find the number of photographers in the US whereas it might be still easier based on the number of sold DSLR cameras per year.
Thanks to all, bests Peter