9.4% in the V5
12.1% in the V5-10 range (so 21.4% total in the V10)
16.2% in the V11-15 range (so 33.5% total in the V15)
4.5% in the V16-20 range (so 37.9% total in the V20)
8.5% in the V21-30 range (so 46.4% total in the V30)
10.3% in the V31-50 range (so 56.7% total in the V50)
12.1% in the V51-100 range (so 68.8% total in the V100)
8.5% at firms not in Vault, but in the NLJ250 (so 77.2% total in the V100/NLJ250)
I should add that the Vault rankings don't really do UChicago justice compared to say, NYU, since the rankings are so NYC-centric; a significant portion of people from UChicago choose to go other places (Chicago, Texas, DC, California, etc.).
Here's what they were last year (Class of 2012):
7.1% in the V5
8.6% in the V5-10 range (so 15.7% total in the V10)
16.2% in the V11-20 range (so 31.9% total in the V20)
6.2% in the V21-30 range (so 38.1% total in the V30)
13.8% in the V31-50 range (so 51.9% total in the V50)
11.4% in the V51-100 range (so 63.3% total in the V100)
5.7% at firms not in Vault, but in the NLJ250 (so 69% total in the V100/NLJ250)