[HELP]: Statistics on Project Contributors

Hello.
I’d like to know if it is possible to get the names of people who have contributed most to the Asterisk source code. The information is for a project I am working on for a course called ‘Open Source Software’ and Asterisk was my case study of choice. Any useful links on the subject would be highly appreciated.

Sincerely,
lenikadali

I also need the project governance structure as well i.e who is in charge of what within the Asterisk project,