Sensitivity of ranks in Norrington Table

Given the availability of raw data, I thought investigating the sensitivity of the Norrington ranking (see my previous post) to degree class (first, 2,1, 2,2, third) distribution would be interesting.

In 2010, the maximum score (79.45%, Magdalen College) is nearly 80%, which is equivalent to a degree class distribution of "50% first, 50% 2.1".  The minimum score is 60.95%, nearly 60%, which is equivalent to a degree class distribution of "100% 2.1".

Oriel has 23 firsts, 49 2.1s, and 7 2.2s, and is ranked 11.  Moving 3 (or 4) people from 2.1 to first would shift Oriel's rank to 7 (or 6).  Moving 9 people from first to 2.1 would shift Oriel's rank to 28. 

Just some pointless diversion to keep my mind active.