This is a big project. I'm very proud of this. I originally wasn't going to include the Celtic nations and only use commonly accepted small countries such as the Vatican, but then I added TVA from Quebec so I thought I might as well have S4C. I also tried to generally stick to the original long-running analogue ones.
If I've missed any huge ones from a certain country or I've elevated a fairly insignificant one to a high position that it doesn't have then let me know, although I can't promise I'll redo it.