Hey, well these are average numbers from NL-6max-Crusher. Some guys have 40bb/100 on the BTN and 10bb/100 in UTG with winrate of 8bb/100 overall, for example.
You'll need a lot of samplesize to see your true winrates by position. I think it is a bad focus to look into your positional winrates and try to improve it, except you'd played 50k+ hands per position.