You're looking for the Frequency Distribution charts. These can be found (accurately and in a lot of detail) in most of the prominent blackjack books. The big reason I push the books is often they will give the different frequencies pending penetration, which is what's most important. The frequencies will change a fair amount from a 8D shoe game with 2 decks cut off vs 1 deck cut off. This will change your gains per hand, etc, etc, and ultimately your EV.
If you're looking for general numbers, my A-Z thread probably a page or two back has them posted... I don't personally know of an online resource that has a very well detailed distribution list for "104 cards cut off, 75 cards, 52 cards... etc".
I found several decent links simply by typing "blackjack frequency distribution" in to google, so you could also start there.
p.s. TC +20 will occur far less than 1% of the time =P
Playing it correctly means you've already won.