That's hard to tell, but I can tell you a few things that might help you figure things out.
Generally the %oos in the final class is going to be between 10-20% but UW tries to have it be around 15. That means about 23 people. Historically about 1/3 of OOS acceptees matriculate and about 70% IS.
This past cycle, a LOT of the OOS matriculated, meaning the people getting off the waitlist were miniscule, 3-5 ppl. That's bc the class is ~20% OOS. That means they prolly had a much higher conversion rate. My guess is they accepted about 40 ppl right off the bat and a few more as ppl withdrew after getting off WLs in the summer but at some pt realized that their %oos was going to be high and stopped using the wl at all.
If things go according to form, and this is pure speculation, if they accepted 40 and normal conversion happens, they'll convert about 12, meaning they'll go at least 10 deep in the WL, so I'd feel pretty good about being in the top 10, just keep in mind, things COULD wind up like last year and they convert 50% of the oos.