It's a too complex question for a single answer. It depends on how the player has been built: an all-around player will have a higher TSP than a specialized player. There are no charts as players can develop at different paces depending on their size, the skills they train, the trainer quality...
As a very unreliable way to compare to others, you can estimate having +15 skills points per season during the first 4 seasons (18: 50 TSP, 19: 65 TSP, 20: 80 TSP, 21: 95 TSP). Please note that TSP alone doesn't mean much (if it means anything at all).