The number of participants to linux kernel in universities rankings

[amFeynman]

Hello, AFAIK this is the first rankings by university contribution, you have done an excellent job :) .
The number of participants in the linux kernel contribution is also a key measurement dimension，which represent the popularity of open source in universities. Wish your ranking list take it into consideration, thanks~

[mudongliang]

I suggest we can place the line count with contributor count and move the line count to each contributor with the new form (XXX++/XXX--)