User blog comment:Brainwasher5/Notes about post-lvl 20 skills for editing/@comment-3423357-20160111000040

I don't know what strategy you intend to use to learn what higher levels grant, but keep in mind that just getting a skill that high in game and looking won't work very well due to synergies (in addition to taking a very long time). Some can just be calculated as they progress at a fixed rate, although others that have diminishing returns are not so easily calculated. Finding the skill in the game's code would be best, but you will need to be a modder/hacker to know how to do that. Any method you use will certainly be a lot of work, and I'd hope you are prepared to follow through before beginning, or you may abandon the project before completion.